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Liebert 100-1000A User's Manual

1. 6 0 OPTIONS This section discusses the options available for the Liebert STS2 The communications options are also discussed in 12 0 Communication Interfaces 61 Programmable Relay Board The Programmable Relay Board PRB provides a means to trigger an external device when an event occurs in the Liebert STS2 Each PRB has eight channels Each channel has two sets of Form C dry contacts rated 1 Amp 30 VDC or 250 mAmp 125VAC Any alarm event can be programmed to any channel or channels Up to ten 10 events can be programmed to a relay If multiple events are grouped to one relay group the events logically to simplify troubleshooting when an event is triggered The same alarm event can be programmed to more than one channel Up to two Programmable Relay Boards can be installed in the Liebert STS2 for a total of 16 channels Programming is performed through the touch screen display See Configuring the Programmable Relay Board Settings on page 97 for default settings and instructions for reconfiguring the relays See Figures 21 and 22 for the location of the PRB See Figure 24 for wiring details Table 7 provides the PRB pinout Table 7 Programmable relay board pinout Channel Pin No C N C N O CH1 A 1 3 1 2 3 B 4 6 4 5 TB1 7 9 7 8 9 10 12 10 11 12 CH3 A 13 15 13 14 15 B 1 3 1 2 4 6 4 5 TB2 B 7 9 7 8 9 CHS A 10 12 10 11 12 B 13 15 13 14 15 CH6
2. 111 15 14 GrEOUndimg oos Perego Se e e aae dre ette qe fe Pe ar 112 15 1 5 Electrical 112 15 1 6 Input Surge 112 R sponse Time aa ie Ss 2 a GS POR is RS PANI TIS 112 15 1 8 Environmental 112 15 2 System Componentss teana ax RTT DR Waa ER eas 113 15 2 1 Frame and 113 15 2 2 Casters Leveling and Seismic 113 C o0 Bg 5e oue 2 t suu pu a kak ese tect tuc te ate a 113 ACCESS ds te RUA set e ete T Ake ey opty CRM N ies bela ER 114 15 2 5 Circuit Brea CST de ei Ray RD ce qi m S 114 15 2 6 Cable Entrances ss oor eh it bare tw Ba OE est 114 15 2 Sale vob RE 114 15 2 8 Color Graphical Display or LED Display 114 15 2 9 R9 292 Port A tese ots gto ava ete eet de wh 115 15 2 10 Terminal Port Connections 115 15 2 11 RS 232 Interface
3. 116 15 2 12 8 rs Peewee I E 116 1 5 2 19 8 Design vete RN RAS E KR 116 15 2 T4 ODtlOnS eR Ce RM qu 116 16 0 EVENT MESSAGE HELP 117 17 0 MAINTENANGE Qe qun Ga ee OP 138 17 1 Proper Tightening of Nuts Bolts 138 17 2 Testing the Liebert 52 138 17 8 Changing the Air Bilter uiuos bens a rem ewe 1 ae ORI RR PR EUR Des 138 SUPPORT INFORMATION a ka ee edcu ade Bate es 139 PROGRAMMABLE RELAY BOARD SETTINGS 140 INPUT CONTACT ISOLATOR SETTINGS RECORD 142 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 88 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 F
4. 790 og ao vo l 195 LAdNI 8 20 800 LNdNI 3930OS NIA LAON udis MIA INOW 608 1nd1no IndNi sna ANNONS el 0 pate t e 00 00 0000 dAl SLT SZ I 10 Qr vy LAN dAL T6 60 6 1 yvy 31 wings Installation Dra 800 1000 amp Liebert STS2 with dual output breakers Figure 19 Electrical field connections 0 086 654 INVHOVIO 1 104100 WALSAS A 8 seo C vego e ego lt DN NES zgo 89 cdounos 3ounos T 8 8 T 393r s V T 5 u N 8p Sg T HONI 820 SI SLAN Wad L Z L LNSAWAYINOAY 300HOL SHL 7 Suvg SNE OL 8818 ONILOANNOD SLNN ANY SHJHSVM 51109 Z L SAGNTONI SNOILOSANNOO 318V9 ANY WHLNAN LNdLNO LNdNI GAllddNs SI FYVMAYVH 9 84 09 TIVOlH LOd d W907 IVNOLLVN HLIM 3ONVQOOOV NI 38 OL SI 11 S H3aN3WNWOO3 LON 5371970 WANINN TV Y3ddO9 ANY WANIAN TY S318VO INO LINGNOO NI NH 38 GINOHS S318VO LNdLNO LINGNOS 31Vsvd3s NI NO 38 LSNW H3MOd ANY 1 1 6 4215 LINGNOD LINS OL HONNd SAOWSY 541 14 SSADOV d IHVAOW3MH 318VTIVAV d 18VO
5. OL 3LIHM 440 WAI FTHM WOLLYSA dO 930 SL NIHLIM L3NISVO SNFIINVH LAITMYOS 31vnoadv ATIVENLONYLS SI WOLLOG LINN ELL S71 008 LHOISM HOLIMS 008 XVN 6079 YH NLA 08 6 114100 LV3H AINO LNOUS GSYINDSY SI WAWININ 16 9 1SnVHX3 GSAYINOAY LINN 3AOSV 3ONVHV37O NIW WWZSb 8L SYALSWITIN S3HONI NI IHY SNOISNANIC 71 5 F LL WON S3LON AH1N3 SHHLN3O 062 WOLLOG 967 YILSYO 318V9 1LSnvHX3 V dIVL3ad 33S SHHINJO Waisvo 6vID alil uiv 390 18 LON Od LNOYS OLL ALIAVHO 9562 q ALIAVHO 5 Tee S18 20 Installation Drawings Figure 8 Outline drawing 100 250amp Liebert STS2 with a key lockout switch option KEY LOCKOUT SWITCH 1956 770 932 36 7 AIR INTAKE AREA DO NOT BLOCK AIR FILTER FRONT VIEW 594 CASTER _ 23 4 CENTERS 213 SEE DETAILA 8 4 116 46 CONTROL CABLE 12MM BOTTOM ENTRY AREA POWER CABLE BOTTOM ENTRY AREA AIR 619 v 12MM CENTERS 24 4 BOTTOM VIEW
6. 44 Installation drawing seismic floor stand 100 250 45 Installation drawing seismic floor stand 100 250 46 Installation drawing seismic floor stand 100 250 47 Installation drawing seismic floor stand 100 250 48 Installation drawing seismic floor stand 400 600 49 Installation drawing seismic floor stand 400 600 50 Installation drawing seismic floor stand 400 600 51 Installation drawing seismic floor stand 400 600A 52 Installation drawing seismic floor stand 800 1000 53 Installation drawing seismic floor stand 800 1000 54 Installation drawing seismic floor stand 800 1000 55 Installation drawing seismic floor stand 800 1000 56 Liebert STS2 touch screen 59 Liebert STS2 touch screen 65 Source transter screens se anew EE wee ua NUE Gia Seanad 66 Gate board viewing slot
7. Symbol LED Description A Green Source 1 Power is Present B Green Source 2 Power is Present Green Source 1 Within Tolerance D Green Source 2 Within Tolerance E Green Source 1 SCRs is On F Green Source 2 SCRs is On G Yellow Source Transfer Inhibited H Green Push Button to Select Source 1 as the Preferred Source Green Push Button to Select Source 2 as the Preferred Source J Green Output Power is Present K Alarm Silence Button L Symbol to Indicate the K and M Must Be pushed at the Same Time to Reset Alarm M Alarm Reset Push Button N Red Alarm Present 1 Green CB1 Closed 2 Green CB2 Closed 3 Green CB3 Closed 3A Green CB3A Closed 4 Yellow CB4 Closed 5 Yellow CB5 Closed 44 wings Installation Dra floor stand 100 250A Ing seismic Figure 32 Installation draw 0 ON 3 00081254 uGL VE 8216 096 32 84 82 16 006 LOvOvES S LOEOVESS Sese orz 19209628 5 9 8426 o 19108629 LHOISH XVIN LHOI3H LHOI3H 16 14 JO Nid 318Vl1 LHOISH 591 14 OZE LAN LYVHO ANOYOL FAYVMCYVH 80081454 Z 913 LAMOVYE GNVLS Z 1SV31 LY QN31X3 OL SAYL 13 0 8 2616 H3MOT V3 IHL SLOTS JHL LAMOVYE 2515 IHL NO SAVL JHL LVHL OS GNVLS IHL OLNO 2515 JHL TION S 2818 VOSC 001 15 21
8. 20 AH 009 254 dOL WOLLOG dAL 08 HOOG 8 M 9 62 SH21N30 WWZ 86D 62 LSNVHX4 434 16 G28 AMIN3 dOL A die Ge 318VO 928 ER 1 9 062 ualsvo 9EL SH3 lN3O AH LN3 dO L WINZL 668 318VO H3MOd TANVd ACIS LNOHLIM NMOHS LINN dO LNOYSA V Wiad 1VLad 33S AYLNA INO LLOS SH3lN3O ETE 318V9 IOHINOO X3LSY 6 MAIA LNO H4 981 Yad LON Od 0 SALON 33S 310H ONILNNOW dAD via WNZ 8 69 LINN SHL dO LH9IAM 3H1 LYOddNs OL ANYLS Y00714 JHL NO 1534 LSNW SHALSVO JHL aasn SI GNVLS HOO 3SV8 LINN HLVANYSGNN S31OH SNILNNOW LINN 3H L OLNI 1 38 LSNW 1109 GNVLS HO SNINOHONV ALIAVHO OINSI3S d3diAOSd v 13 33s S310H ONILNNOW G3OV3HHL 0 MH31N39 SZXSZX AZIS 318VSOdSIG MAL 30v das OL HLIHM 440 Wal 3lIHM WOLLYSA dO 930 SL NIHLIM L3NISVO LAMMYOS HO4 SLVNOAGV ATIVENLONYLS SI WOLLOG LINN S81 00ZL LHOI3M HOLIMS 009 XVIN HH MM 8076 YH NLA OZSOL HOLIMS HOS XVN YO Z YH NLA 0469 114100 1 SS399V 39IAH3S NOILVTIVLSNI 1
9. TOH LNOO H3MOd 31VHVd3S NOH 38 LSnIN SH3H LO TOH LNOO v NOILdO QHVOS 3 18VININVHOOSd 9NISOOIJNOO Od TVONVIN 3ONVNZ3LNIVIN 8 NOLLVH3dO NOILVTIVLSNI OL H3H3H Q3N3dO ATIVWHON ON 035070 ATIVINHON ON NOWIAO2 9 395 TANNVHO SLOVLNOD O INHO4 HLIM ST3NNVHO TWNOIS 8 SANTONI NOILdO QHVOS 3 18VININVHOOMSd 2 GL 549019 SLNIOd NOLLO3NNOO 1 5 YJNWOLSNO L SALON Zf 8 LLP NO q3Sn LON 91 l St vi eb 9 V cL w OF 01 01 8 6 8 2 6 7 V 9 S v 9 v g pe l eb Jy Sb vi eb Sel Le Lupo om v 6 9 2 211 Sb vb G o e oot iis TANNVHO 318V1 QHVO8 AV T38 1 vr 37 Installation Drawings Figure 25 Control wiring for the input contact isolator board option Table J51 Input Contact Pin No 1 1 2 3 2 4 5 3 6 7 4 8 9 5 10 11 6 12 13 7 14 15 8 16 NO CUSTOMER CONNECTION 1 2 3 4 5 6 7 8 9 10111213141516 GINE INPUT CONTACT ISOLATOR BOARD Rev 03 NOTES 1 Customer control wiring connection points are Terminals 1 through 16 CON see Table
10. 68 Liebert STS2 touch screen 85 a cee telat Westone icio cand 86 Keyboard and keypad 86 Key lockout switch ic ea hse ete eb cerea 87 Hyentmask dialog 4 455 eec ET ERES QU BR ot hie que Otten Tes 89 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 18 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 28 Table 24 User settings dialog Ee N 90 DER d te d PST 91 Comm options dialog box 93 Modem dialog brite kuyuy NE SIDE 94 Input contact isolator dialog box 96 Programmable relay board dialog 98 System Options d re re e ert n DA gos Role eta ela OR e 99 Eyentlog 9 a Teta Bee Wet uba
11. OV Detection Delay 1 4 cycles Source 1 2 Set Points Slow UV Detection Delay cycles Cancel 2 Select 1 to configure the settings for Source 1 3 Configure the settings using the keypad or dialog box that is displayed when you touch a button Table 13 Sepoint parameters Button Range Default Comments 10 to 30 of Nominal Fast UV Setting voltage rating 20 Set in increments of 1 Slow UV Setting 5 to 20 10 Set in increments of 1 Slow UV detection delay 1 60 cycles 5 cycles Units Line Cycle OV Setting 5 to 20 10 Set in increments of 1 OV Detection Delay 1 255 cycles 3 cycles Units 1 4 Line Cycle 0 3 0 multiplied by 4 5 Unit xfer lockout detection point I PK Xfer Lockout the unit current rating Current Rating Units Amps RMS Select the HI or LO buttons to configure your setting e Select 2 for Source 2 Configure the settings as described in Step 3 Select SAVE to keep the settings for both sources The Set Points dialog is closed and the User Settings dialog is displayed A keypad is displayed This setting configures the maximum allowed phase difference between the sources and applies to all manual transfers as well as any auto retransfer Configure this setting with a range of 1 30 degrees The default setting is 15 degrees and the resolution is 1 deg a b Sele
12. c JONNOS 8 LNdNI JOUNOS V LAdNI SOYNOS 2080 ve SONOS MAIA 5 sng WaLNANn LAN Wad 959 El ve T 91 MAIA LNOYSA cl av 508 LAdLNO LNANI AD SN QNDnOWS _ uy yy LAN Wad VIC LS I c T ET I SLT Edd CLT 41 Gy 28 wings Installation Dra le output breaker ing 400 600 amp Liebert STS2 with s Figure 16 Electrical field connections drawing QSAOWSY STANVd HLIM 2 00vcLcSd gt V V V NOILO3S sng I INVHOVICO 3NIT HNO 41 ANNONS 1 1 1 0 WALSAS INO a EXT E d 0g ag vo E 4 AN 2 1ndlno WALSAS ES sna J L WYNN 62 909 G o oa N Y Y as NE Bs U Pt j rao NY 9 HO x z 30unos 39unos AE 9 Sng WYLNAN 189 9 1ndNI SONOS INdNI 5 9 8 LNdNI SONNOS V JONNOS WN 89 SHT HONI 829 09 80 vg 2 SI SLAN Wad 1 Z L LNAWSYINOSY 3HL Z 45 1 Suva SN IHL OL S3 18VO 9NILO3NNOO sng WYLNSN SLNN SH3HSVM S1108 2 1 SAGNTONI _ LD SNOLLO3NN
13. en 101 History tese uo LES SEQ aL ef t a 101 1 HDD AOS Plays 3 ui ara ege t e OS 103 Key lockout switchs va oes vex e GS DIESE Foe RL Se E 105 TABLES outputs s cuo dese e de dnte IED Q Pets ea ete ete eee t GE 6 Input output conduit plate specifications 10 Input junction box dimensions assesseer es 11 Input junction box terminal wire size 11 Remote source selection terminal 13 Terminal block 1 and terminal block 2 wire 13 Programmable relay board 14 Eventani ssagess is e We EV RN RE EN NEP EM qui 74 Terminal 77 Value types eeu eri bs B S RI ep 79 Group settings and values 79 Binary hexadecimal conversions 82 Sepoint parameters eO L EC RE E C bs ua 91 Standard settings for programmable relays 97 LED and push button descr
14. uva SLAMOVEE HLIM 2515 dO WOLLOG l390VH8 2515 HV3H H3HSVM ZLIN YSHSVM 4201 WIAOPXSZ L ZLW MIYOS Sa0V1d 2 o 33S ZLN YJHSYM LV14 H3HSVM 201 11148 IWWOTXSZ 1 MINOS s3ovid 2 1399 2515 LNOYSA HVds 46 Installation Drawings Figure 34 Installation drawing seismic floor stand 100 250A 0 00068154 Il3340VH8 1 4 ZLW H3HSVM H3HSVM 3901 11148 1 A332S S30V1d 2 OLN H3HSVM OLN H3HSVM 1148 WINOEXS L 0LIN MIYOS S30V1d 2 M3IA 9IHL3WOSI V3 SLOTS L342VH8 SV3SH OLNI SCS Ol S8V 1 L340V8H8 2515 HV3H 139 2515 YAddN HV3H STIWLAd 00SLZSd L00SLZSd 000SLZ Sd S MA 33S ALON 3GIS Sls 5 1991 1 4 Sls 47 Installation Drawings Figure 35 Installation drawing seismic floor stand 100 250A N N 5 a gt S c 5 e e d tO N N 0 20 REZ Sw aa 2 ug Lu Q g 0 c gt x gt x O l LL Q LLI o _ z x LL 4
15. 3H L NI GSYINDSY SI WAWINIW WWrL6 9 40 1 GAYINOAY LINN SAOSV 39NVHV37O NIN NINZST 8L Z L SYSLAWITIN S3HONI NI IHY SNOISNAWIG TTV 696 SALON 618 M ALIAVHO 400 600 amp Liebert STS2 10 Figure 6 Outline drawing 19 wings Installation Dra 98 at se dOl 008LLCSd 9 lt dAL 508 5 YOOG SH31N39 T6 ag p V WO LLOS 84 8 221 AH LN3 WO LLOS dOL 318V9 H3MOd 9 e 009 0 32 le 196 TANVd 3415 LNOHLIM NMOHS LINN dO 1 4 V W130 0 SALON 335 dAL 9 310H ONILNNOW vid WAZ 8 69 LSNVWHXA NVA W49 008 LINN AHL dO LHOI3M LYOddNS OL GNVLS 3OO14 3H1 NO 1534 LSNW SH31SVO JHL qasn SI GNVLS HOO 14 dl 3SV8 LINN JHL HLVANYSGNN SATOH ONILNNOW LINN SHL OLNI Q3QV3H L 38 LSNW 517109 ONILNNOW NV 1S HOO 14 HO 800 1000 amp Liebert STS2 HOLIMS VOOOL XVN HH MM 60 S 18 061 SS309V 3OIAN3S ANY NOILVTIVLSNI Figure 7 Outline drawing 21045195 dadiAOSd 3v v 1140 335 S310H ONILNNOW 1 GZXSZXL AZIS
16. ANY SYALAWITIN SIHONI NI 38V SNOISN3NId 17 L SALON NIA VV NOILOAS 2 2 2 3 gt S 3 22 3 3 3 22 3 22 3 3 3 3 3 ae 8 og 9 56 Nee E xA AMAIA 3 IS 1HBI3 Q3AONWH STANVd LNO4 HLIM MAIA LNOHJ V vedo 5 2 289 319406 S lt 1 I SOUNDS o I ASIN AIA NN 9 INdINO7Indn STAUNTON a 082 AD fo B vi iS a E SLT d SZT qv LAN Wad 811 Crt 22 ET 2 1 dAD 16 422 9 32 Installation Drawings Figure 20 Liebert STS2 non automatic circuit breaker schedule Liebert STS2 Ampere Withstand Rating A Vendor Type Ampacity A Voltage Current 200 240V 125K 100 ABB T4L 250 380 480V 100K 600V 50K 200 240V 125K 250 ABB T4L 250 380 480V 100K 600V 50K 200 240V 150K 400 ABB T5L 400 380 480V 100K 600V 25K 200 240V 150K 600 ABB T5L 600 380 480V 100K 600V 25K 200 240V 125K 800 ABB T6H 800 380 480V 65K 600V 25K 200 240V 100K 1000 Square D PJ 1200 380 480V 65K 600V 25K 1 The Liebert STS2 non automatic breakers are 3 pole 600VAC rated with magnetic trip only 2 Upstream devices by others must be used to provide overcurrent protection
17. NOLLVOO DIVIN TIVM MO V8 NWON 87 1SV3141V Y00714 NO SLAMOVYEE HOO 14 NOILISOd SNOLLOPHISNI SYAYNLOVANNVW MOTIOS aariadns LON 2 61 538 0991 3145 Q39 L3SIAVS MLI 2 1 Y00714 G30N3WINOO3M L SALON ONINOHONY OINSI3S W31SAS dO L ier L0 2 7 W Za 20 pn AW 99 INOX K m Y m Ly GLEE AW 3 ONIOVdS HOS Ira 310N 33S Ld iaavsg 22 8 dO deve ONIOWdS 4 4 ALON 338 TIVM MOVE 24 wings Installation Dra 400 600 amp Liebert STS2 ing hor draw Ismic anc Figure 12 Se l13MOVM8 3SV8 LANISVO LNOYS 0 Y SOv I LCSd HONI SZ XOSddV ANY 19915 010 34V S130 V8 3SVH L3NI8VO LNO 4 ANY SL249V88 HOO T3 LNOHJ NV 8 qasinods SI TIVM JAIS WOYS 1610 WAWINIWN HONI 079 LN3S3Sd STIVM 3016 dl Z 6914 UIN 8792 1 862 OL 30080 ANY qal1ddns L3NISVO LNO amp J OL SLAMOVYE HOO T4 LNOHJ TIVLSNISY SS390V Y31139 GSAOWSY 38 NVO LINN SL3MO Vg HOOT TIVLSNI 1110 751 3 0 SAOWSY SNOILV2OT 9 dHVMQNVH NALHOIL LON OG 108 L340 V8 3SV8 LANIGVO 1 4 OL 61 3 0 014 LNOYS HOV LLV 27914 1390 vig
18. 079 511 I PK on Source 1 080 521 I PK on Source 2 081 SOURCES OUT SYNC Source 1 and Source 2 are out of synchronization 082 LOAD ON ALT SOURCE The output load is running on the alternate source A E 083 AUTO REXFER INHIBIT Automatic retransfer is inhibited 084 CB1 51 OPEN Source 1 Circuit Breaker 1 is open 74 Alarm and Faults Table 8 Event messages continued ID Alarm Message Description Cause Action 085 CB2 52 OPEN Source 2 Circuit Breaker 2 is open 086 4 51 BYP CLOSED Source 1 on bypass Circuit Breaker 4 is closed A E 087 5 52 BYP CLOSED Source 2 on bypass Circuit Breaker 5 is closed 088 CB3 OUTPUT OPEN Output circuit breaker CB3 is open A E 089 CB3A OUTPUT OPEN Output circuit breaker CB3A is open A E 090 S1 PHASE ROT ERROR Source 1 phase rotation error A E 091 S2 PHASE ROT ERROR Source 2 phase rotation error A E 092 TRANSFER INHIBITED Transfer inhibited 093 OUTPUT UV Output is under voltage D F A E eee eS Input Contact x is an optional alarm input The alarm name 121 INPUT CONTACT 2 122 INPUT CONTACT 3 can be programmed with an alarm name from the Input 123 INPUT CONTACT 4 Contactor Isolator settings option under the Comm Options 124 INPUT CONTACT 5 See Configuring the Input Contact Isolator S
19. 11 1 Alarms and faults are events that are triggered when the operation of the Liebert STS2 falls outside the defined parameters These events can also be triggered by user actions such as changing configurations clearing logs etc failed components such as a fan failure an SCR that is open or closed etc and system status such as open circuit breakers load on alternate source etc These events can provide a warning or trigger the system to make a change such as switch sources or the recording of a history log The Liebert STS2 monitoring system detects and annunciates a comprehensive set of fault and alarm conditions Faults and alarm messages are can be viewed on the LCD touch screen or via the RS 232 port On the LCD touch screen the events are shown in the Status Display panel in the lower left corner of the touch screen and written to the Event log You can touch a message to view a definition of an event and a tip for troubleshooting See 13 0 Liebert STS2 Touch Screen Display for more information on the touch screen If you are monitoring the system through the RS 232 port see Table 9 Terminal commands on page 77 for the commands to view event logs and alarm and fault lists Event actions can be triggered by the settings configured from the Event Masks See 11 1 Event Mask for more information Faults A fault indicates that a component of the Liebert STS2 has failed or has been damaged In the Event Display
20. 828 SI SLAN Wad L Z L LNAWSYINOAY IHL 7 Suvg 509 OL S318V9 ONILOANNOO SLAN SH3HSVM 51109 S3O TTONI SNOILOANNOO 318V9 ANY WYLNAN 1 LAdNI SI LA SYVMCYVH 9 53003 1VOIHLOdT3 WOOT NV TIVNOLLVN 3ONVQHOOOV 38 OL SI TIV S CIAANINWNWOOJY LON S318vO WANININ TV 43ddOO ANY WANIAN TV S318V9 LAdNI NO H4 LIndNOO 5 V NI N13 38 GINOHS S318VO 104100 LIndNOO 31VHVd3S NI Nod 38 LSNW 83MOd ANY SNISIM TOH LINOO 6 IZIS LINGNOD LINS OL HONNd SAOWSY S31V ld SS300V 3 18VAOW3H FTV IIVAV 3 18VO INOLLO8 ANY dOl Suu313NWITIIA SIHONI NI 38V SNOISN3WIQ TIV SALON MAIA 3018 VV NOILOAS 99 e 9855050599 9 00D0606DO0b0bDonopoononopD 29 09 9 5018 WHLNAN dAl LS ED SLT pO oo6000000009000000o000 GSAOWSY STANVd LNOYS HLIM MAIA LNOYS V pTi Del sna 1 WYLNAN E 1 80 pai og ao vo 104110 WALSAS 7 sna HE aNnouo Aap AS S82 4 Y H p p 177 go
21. 18 9 18 10 18 11 18 12 18 18 18 14 18 16 18 16 18 17 COMMUNICATION INTERFACES 76 Using the RS 282 Portes sasa payaa aqa sweep BTS BS Bo Y EUR Y UN 76 12 1 1 Connecting and Using a 77 12 1 2 Configuring Liebert STS2 via the 78 12 1 3 Setting Bitpacked Options with the 81 12 1 4 Setting Event Masks with the 84 LIEBERT STS2 TOUCH SCREEN DISPLAY 85 Display Overviews i e Iso uates ge Ote s Zo e oe dr UR E 85 Meni Overview au Vat LR Re ea rog X e e e PC Ca OR HUC ad 86 9 25 otio em ste aree tees ted 87 Display fa PERDERE Fan ne EE AREE 88 Event Controls mees eta uter te SUEDE 88 Event displays XM ies re eM coU SONS AC NN ERU PES e Ps ee 88 Menu Bar ga Qa ee ar qe eese ees n Su ea rds sre 88 Configuration Men ecu e ER CIN VL Ne vds o Re ME 88 JS SY StCM oot See st uri exe at dest dieto esa cus 88 JS Zo Byent Maske sac ku a hh oor se ot cea aui mau eu uto Lester ot 88 878 oor
22. H3HSVM ZLA H3HSVM 3201 1148 WWOPXSZ L ZLW MIYOS s3ovid OLN H3HSVM OLN H3HSVM 11148 1 0 MIYOS s3ov1d 9IHLI3INOSI SLOTS Layo ZOl4 OLNI 01 S8V1 13 sva 1499 2815 Layoved 2518 81130 4 80011284 ANY 20021664 000 5 SOMA 335 ALON NIA 315 LHOIS Sls MAIA 9IH L3INOSI LHOIY 1 55 Installation Drawings Figure 43 Installation drawing seismic floor stand 800 1000A 0 A8Y 00Z12Sd 9IHLESINOSI S IlIV L3G 20021684 ANY 10041264 00011264 S MA 33S ALON LHOld us A MAIA LNOJ 0721 56 Introduction to Liebert STS2 Operations 8 0 INTRODUCTION TO LIEBERT STS2 OPERATIONS 8 1 8 1 1 System Description A Liebert STS2 provides an automatic seamless transfer between input power sources to an output load The Liebert STS2 monitors the input sources to ensure each source is operating within set parameters as well as ensure that each source is within acceptable tolerances for a transfer between sources to be completed The Liebert STS2 contains two static transfer switches in one enclosure to allow the unit to transfer its load between the two input sources without an interruption of power to the load lo
23. This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 52 PHASE ROT ERROR Source 2 Phase Rotation Error A phase rotation error condition exists on Source 2 Check the phase sequence ABC of Source 2 Transferring to Source 1 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 132 Event Message Help Text TRANSFER INHIBITED Transfer Inhibited Uninterrupted transfer between sources is inhibited due to input source failure sources out of sync switch failure or the unit is in bypass mode Check the Event Log for the event or events that may have caused the alarm Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and p
24. vao bdo M3IA LNOS3 C I dA SNA ANNOYS VIC LS ED 441 27 wings Installation Dra 100 250 amp Liebert STS2 with dual output breakers Figure 15 Electrical field connections drawing VO 061654 INVHOVIO ANIT ANO 104100 WALSAS OD zgo cdounos TD vego 2 92 u N 8 SE HONI 829 SI SLON Wad L 2 L LNAWSYINDAY AHL Z SHv8a SNE OL S3 18VO ONILOANNOO SLOAN ANY SH3HSVM 51109 Z L SHOfYTONI SNOLLO3NNOO 3 18VO ANNOYS TIVHLOSN LNdLNO 1 SI LIA SYVMCYVH 9 83002 1VvOlH LO3 13 W907 ANY IVNOLLVN H LIM 3ONVQHOOOV NI 38 OL SI ONIHIM TIV S H3aN3WINOO3 LON S318VO WANIAINTV GV19 Y3ddO9 ANY WANININTY r S3a18VO LNdNI INOHJ LINGNOO 3LYYYd3S V NI N 13 38 10 5 Sd 18VO 114100 LINGNOS 31VNVd3S NI NAY 38 LSNW NIXIM H3MOd ANY SNIHIM TOH LNOO 6 3215 LIndNOO LINS OL SAOWSY 541914 SSHOOV 1 3 18V IIVAV AH LN3 318V9 WOLLOd ANY SH3 13WITIIIN S3HONI NI 33V SNOISNINIA 11 L SALON OD 3oHnos GSAOWSY STANVd INOS HLIM MAIA LNO8J V V NOILOAS 29 800 104100 WALSAS go 5 vao aonaoo gonaoo go Lg5 Sn8 1 pee E 9 9 LNdNI JOYNOS og ao vgo
25. AC Power For Business Critical Continuity Liebert 5152 User Manual 100 1000A 50 60Hz gt EMERSON Network Power TABLE OF CONTENTS IMPORTANT SAFETY 5 1 OVERVIEW OF MANUAL 25 go ie BE eee RI eee 2 1 0 SAFETY PRECAUTIONS a ee 3 2 0 UNPACKING AND INSPECTIONS 4 2 1 External Inspections 20325 25 deeem s MA MR A ae uum 4 2 2 Unloading and Handling se se te ute ye eme EP 4 2 2 1 Handling 5 2 2 2r Iit RS bare die x es e ER ee debe ete CU CR PARS 5 2 3 Internal Inspections sianu vw ev pa y GUpe eb PN RE P QUEUE NES 5 3 0 LOCATION CONSIDERATIONS EEG ORC RTL RCA CE D un ONCOL 6 8 1 Recommended Minimum Service 6 3 2 Heat Output oos ev wate tee Ote he ner vat dd Pal O NG Gia des 6 3 3 Operating 6 BA Givi aed a p nM Wee dee etia 7 4 0 LOCATING THE LIEBERTSTS2 Wa ee a REEL 8 4 1 Leveling and Anchoring Unit to the 8 4 2 Leveling of th
26. Input Junction Boxes and Cable See 6 0 Options for more information 116 Event Message Help Text 16 0 EVENT MESSAGE HELP TEXT Key ALL CAPS event message displayed in the Event Display panel in the lower left corner of the LCD display Indented text help text shown in the Display Panel in the lower right corner of LCD display BOLD commands that are sent through the RS 232 port 51 SCR SHORT Source 1 SCR Short One or more of the SCRs for Source 1 has shorted Transferring between sources has been inhibited Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 2 SCR SHORT Source 2 SCR Short One or more of the SCRs for Source 2 has shorted Transferring between sources has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Th
27. NOTES 1 Maximum cable length 1000 feet 300 meters with twisted pair cable 22 AWG 300V minimum 2 Signal voltage 5VDC current 10mA 3 Refer to installation operation and maintenance manual for configuring the COMMS board 4 All control wiring by others must be run separate from power wiring Control wiring runs should not be combined in the same conduit Refer to control connection location diagram Figure 21 or 22 for location of COMMS board All wiring must be in accordance with national and local electrical codes 39 Installation Drawings Figure 27 Control wiring for the Liebert IntelliSlot SNMP Web Modbus 485 card 20 Y 8006 54 e qeo od jeues 19 5 s sn Ajuo dnjas 10 10j9euuoo 6 8Q 5 uonoeuuooJeju pue S8joN ES f 6 Jojoeuuo2 Gr JM 1euJ9u13 eal Egl zal bal eou1oeJe 0 pue jeuo eu eouepJoooe eq IV 9 1100 uondo Sgp q9M 1018111910 uone2o 10 8 Jo uoneoo uonoeuuoo G ui eq jou 5 suni
28. Notes 1 All dimensions are in inches and millimeters 2 18 457mm min clearance above unit required for air exhaust 3 Clearance of 36 914mm minimum is required in the front for installation and service access 4 Heat output 2710 btu hr 0 80 kW hr max for 100A switch 4680 btu hr 1 37 kW hr max for 250A switch 5 Weight 780 354 kg 6 Unit bottom is structurally adequate for forklift handling 7 Keep cabinet within 15 degrees of vertical while handling 8 Color IBM off white 9 Open door to replace air filter disposable type size 1x25x25 10 Threaded mounting holes see detail a are provided for seismic anchoring or floor stand Mounting bolts must be threaded into the unit mounting holes from underneath the unit base If floor stand is used the casters must rest on the floor stand to support the weight of the unit EXHAUST 75 MAX DOOR SWING 180 29 8 815 Ll 321 D 19 2 SIDE VIEW POWER CABLE TOP ENTRY AREA CONTROL CABLE TOP ENTRY AREA TOP VIEW 69 8 2 75 TYP 12MM DIA THREADED MOUNTING HOLE 4 TYP SEE NOTE 10 LEVELER DETAIL A FRONT OF UNIT SHOWN WITHOUT SIDE PANEL PS211101 Rev 02 21 wings Installation Dra lon 400 600 amp Liebert STS2 with a key lockout switch opt Figure 9 Outline drawing 20 ASY LOVILoSd MalA dO L 08 NI
29. 15 2 1 15 2 2 15 2 3 System Components All Liebert STS2 models provide two static transfer switches within one enclosure with the ability to transfer between two input sources to a single output All Liebert STS2s are configured with either an LCD Color Graphical Interface touch screen display or LEDs for monitoring and configuring the unit This section lists the common components and the differences for both types of units Frame and Enclosure The complete Liebert STS2 is housed in a freestanding enclosure The cabinet is a NEMA type 1 enclosure and meets IP20 requirements The cabinet is structurally designed to handle lifting from the base The frame is designed to accommodate floor stands Table 20 Frame sizes Rating Width Depth Height 100 250A 3 pole 30 in 76 cm 32 in 81 cm 76 77 in 195 cm 400 600A 3 pole 38 in 96 cm 32 in 81 cm 76 77 in 195 cm 800 1000A 3 pole 84 in 213 cm 32 in 81 cm 76 77 in 195 cm The distributed floor weight for Liebert STS2 is less than 150 Ibs sq ft 660kg m The required service access is only from the front of the unit The Liebert STS2 can be tipped 15 in any direction without falling over Casters Leveling and Seismic Anchoring The frame includes heavy duty swivel casters for ease of installation plus permanent leveling feet for final installation The unit also can be fastened to the floor using optional seismic anchors to m
30. If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 128 Event Message Help Text S1 I PEAK Current Peak on Source 1 The peak current from Source 1 has exceeded the set point as defined in the Xfer Lockout setting under User Settings Transferring to Source 2 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured If this alarm is configured to automatically reset under the set points for User Settings the alarm clears itself when the I Peak condition clears If this alarm is set for manual reset mode the alarm continues to show as active after the current returns to nominal still inhibiting transfers You will need to manually reset the alarm If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal CA and press RETURN on your keyboard The alarm has triggered a message to be sent to the modem if so configured 52 Current Peak on Source 2 The peak current from Source 2 has exceeded the set point as defined in the Xfer Lockout s
31. OPERATING INSTRUCTIONS FOR THE TOUCH SCREEN 64 Normal System 65 Manual Transfer Preferred Source 66 Enabling Remote Source Selection 67 Maintenance Bypass ver ON D RT eS ee Be IE SN E VIS S 67 10 4 1 Bypass Procedures for Source 1 69 10 4 2 Bypass Procedures for Source 2 70 Normal System Shutdown s arn hid E NOU RR e 70 10 5 1 Shutdown in Static Transfer Switch 70 10 5 2 Shutdown in Maintenance Bypass Mode 70 ALARM AND 5 71 Event u m oes a REA Ree art ME IDA NEAN Gaur EUN 71 Ev nteand History 1 088 5 au ipa eR me WR IU S EA 72 1122 1 cat ayy y u oi des mites OUS UR A 72 1 2 2 History Lotereya retai ied Red RUD LE e BER PE DERE eS 72 Alarm Notes ryz dati Sie Se sab ate OR Ce cd aet u asa ma 73 Messages Gs AN mes ES 73 12 0 12 1 13 0 18 1 18 2 18 8 18 4 18 5 18 6 18 7 18 8
32. TaTWavd 1004 ONLLNNOW u 88 11 LNO H4 V dAL 318V1 33S dOL 53 wings Installation Dra floor stand 800 1000A Ing seismic Figure 41 Installation draw 0 88 007 Sd I330V8H8 ONILNNOW V3 H3MOT1HLIA GQNVLS HOO 14 dO 3GIS vold 1 o IIV L3ad 1004 H3 I3 31 2 LAN 1004 H3 T3A31 SLAMOVYE YAddN HLIM 2616 dO ACIS 1 214 1 2518 l3M5VH8 2515 ddddnN 1 4 lt H uvas 9 INO S 1IV L3G 80021484 ANY 20021484 00021284 S MA 33S ALON I330VH8 ONILNNOW HV3H 15 dO dOL la YAHSWM 1713 I3HSVAA 9201 11148 S L ZLA MANOS s3ovd l3MO0VH8 2516 HJMO YVAN E SLAMOVYE YAddN HLIM 25186 dO IWO LLOS 914 l30VMH8 2515 YSHSVM LV14 ZLA 201 1 2 MIYOS s3ovid Z 1 1 33S SH3HSVM 1714 91201 11148 NWNW0rXSZ L ZLA MIYOS s3o0vid I3M90VMH8 2515 Y3ddN LNOHA 54 Installation Drawings Figure 42 Installation drawing seismic floor stand 800 1000A 0 A8Y 0200 1654 1 LNOJ
33. amod eje1edes uni eq Aq 01000 IV 10 uoneJedo uonejejsur 5 185 S8p d9M 10 81 914 Heqer BU o 19194 vulp eBeyo jeuBis 288 pejsiM YM s1ejeui 006 199 0001 ui amp ue ejqeo tuunuuel 2 spJepuejs 1euJejur Aq SI ujBue eu ejqeo eseq 001 0 edA pue ezis M L S ON Uonoeuuoo Jeuyjojsno ON Uonoeuuoo Jeuyjojsno ON SION 995 N 4 uono uuoo1 lul 5 19 602 40 Installation Drawings Figure 28 Control wiring for the RS 232 port See Detail A NOTES 1 RS 232 communication through DB9 connector 2 Connector accessible with front door open Connector must be removed before closing door 6789 12345 TXD RXD GND DB9 Connector Detail A Front View PS213006 Upper Half of Unit With Door Open Rev 01 41 Installation Drawings Figure 29 Outline drawing for input junction box Recommended Location for Power Terminal Block Customer Connection of Input Location of Power Raceway by others 3 Phase 3 Wire Plus Ground Factory Supplied Input Power Cable Assembly INPUT JUNCTION BOX G Diameter hole PS211005 Rev 0 NOTES 1 Tw
34. type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 8 Input Contact Isolator 8 Occurrence of the indicated external event has been detected by Input Contact Isolator 8 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 135 Event Message Help Text CONFIG MODIFIED Configuration Modified A set point has been updated and saved Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event was w
35. 1 MIA JR ESIOHFOS Suva SNE IHL OL S318V9 9NILO3NNOO sng YALANIN SLNN SH3HSVM 51109 SQN TONI SNOLLO3NNOO 3 18VO ANY TYYLNAN LAdLNO LndNI SI LIA JHYMAYHYH 9 83000 1vondlod13 1VOO1 INN Wad IWNOLLVN 3ONVOHOOOV NI 38 OL SI SNISIM 17 S H3aN3WNWOO3 LON S318VO GV19 Y3ddO9 ANY WANINN TY r S318VO LNdNI IWO83 5 V NI N 13 q InoHS S31EV9 LAdLNO LINGNOS 31Vsvda3s NI ACIS 5 LNdLNO LNANI NAY 38 LSNW ONIMIM 4 ANY SNISIM LAN Wad AZIS LINGNOO 81 4 1 LINS OL HONNd JAOWSY S31V Id SS399V SISVAOWSY SLT 318V1TIVAV AH1N3 318V9 WOLLOS ANY dol Z 161 e SUALSWITIHN S3HONI NI SNOISNAWIG 77 L 009 SLT CLI 4 422 SALON PTY vedo vao igo LNOYS sng LS 1 OET 066 30 wings Installation Dra ingle output breaker 800 1000 amp Liebert STS2 with s Figure 18 Electrical field connections drawing 008ZLZSd INVHOVIGO ANIT ANO LNdLNO WALSAS 2 o Y P N z 3ounos 80 99 99 ated 3ounos sna LAdNI 5 8 LNdNI 5 V LAdNI 5 WAN 89 58
36. 250 amp Liebert STS2 with 5 Figure 14 Electrical field connections drawing 8H 00121484 INVHOVIO dNI T 3NO LAdLNO WALSAS GSAOWSY STANVd LNOYS HLIM LNOYS V V NOILOAS lt o 10 go 3oHnos JOYNOS WN 89 S81 HONI 829 SI SLAN W3d LNAWSYINOAY 300080 JHL 7 Suva SNE JHL OL S3 18V9 ONILOANNOO SLNN ANY SH3HSVM 51108 SAGNIONI _ SNOLLO3NNOO 31979 ANY 104100 SI 9 53003 IWOlWLOATS WOOT IVNOLLVN 38 OL SI TIY S d3aNa3WiWO2933 LON 3 18VO WANIAN TV 33ddO9 ANY WANIAINTY r SATEVO LAdNI LINGNOO 31V8Vd3S V NI 38 GINOHS 318v9 114100 LINGNOOS 31Vslvd3sS NI Nod 38 LSAW H3MOd ANY TONLNOO IZIS LIndNOO LINS OL 3AOW3M 531914 55399 3 18VAOWSMH 318VTIVAV ASLIN3 318VO9 109 ANY dOL SS313MWITIIIN S3HONI NI 38V SNOISNAWIG SALON 20 800 104110 WALSAS 80 Sgo cao 508 IVH LO3N 9 LAdNI JOYNOS 4868 LAdNI SOWNOS 8 LNdNI SONOS V JOYNOS 20800 SONOS MAIA LH9IH 5018 WHLNAN LAN Wad MAIA SN LAdLNO LANI LAN Wid amp I 2 l SLT 777
37. 38 LSNW GNVLS 000 1264 NO 8 9 V 1IVL3Q 1003 NI NMOHS LAN Wyr SLAN NALHOIL ANY LSNFAY N3SOO1 1334 dNV1S LHOISH TVOLLH3A LSNFAY OL 00021254 MIIA WO LLOS NI NMOHS SV Q31V IN3IHO 1334 ANYLS 14 TIYLSNI LON SS399V TIVM V OL 1X3N GALNNOW 38 NVO ANYLS HOO TH SLAN 1334 NALHOILSY 58114 S OL ANDYOL H3HSVM LV14 YSHSWM 9201 11146 MIYOS dVO Uuorxs7 L ZHN ASN 10041664 2 1913 1 JHL OL ONIOVS LN38 515 40 NO S31OH ONISN LAYOVYE 2515 LNOHJ TIYLSNI 10041254 Z 915 ISH3ANN NY 9I3 1f1O S9NIOV4 S8V L 2818 AHL dO 3GISH3QNf NO S3 TOH ONILSIXA ONISN L2349V38 2515 H3ddn TIVLSNI 10021284 OM 9 11 1 33S SLAN 1334 4313441 318 16 2515 SH Sg 68 OL 301080 H3HSVM 1V14 ANY H3HSVM 11146 MIYOS WWOPXSZ L ZAN ASN 10041264 9I3 915 GNVLS HOOT4 JHL JO 1 3H1 ONIOVS SONV14 1N38 541 ONILSIXA ONISN GNVLS 3H L OL L3340V88 2515 TIVISNI N3SOO1 NOI1VTIV1SNI OL HOS 3HVMOHVH MO3HO SLV LW LAN 0b 3GIS LH9IS SILON NOILVTIVLSNI LAN LAN LAN Wr M3IA WO LLOS NMOHS SV 31V Id ONILNNOW OL
38. AE BE ENE SIEHE a xe re Behe TE o SHIFT SPACE BAR CAPS Cancel Backspace 86 Liebert 5752 Touch Screen Display 13 2 1 Security Because the Liebert STS2 Color Graphical Display provides access to various configuration and monitoring choices a password or key lockout switch may be used to protect access to certain changes including Change configuration settings Clear logs Make a source transfer Reset an alarm Without entering the password or enabling changes with the key lockout switch you still can View the display including the mimic status and event help View logs View the startup and bypass procedures Use the SILENCE button to turn off the audible alarm Using the Optional Key Lockout Switch An optional key lockout switch for the Liebert STS2 enables or disables the ability to make changes on the Liebert STS2 The key lockout switch is mounted on the front door See Figures 8 through 10 for location of the key lockout switch To disable the changes turn the key to the top of the switch toward the closed padlock To enable changes turn the key to the horizontal position toward the open padlock Figure 51 Key lockout switch B Changes disabled 8 Changes enabled Using the Password If the unit is
39. CB3A LEDs if supplied are off 12 Verify that the output LED is on gt lS gum Power is now flowing directly from the source to the load without passing through the static transfer switch To return to normal mode 1 Verify that the LEDs for Source 2 are on indicating that the source is supplying power and is operating within acceptable tolerances 2 Insert the key in the CB2 breaker interlock 3 Rotate the key to retract the interlock 4 Close source input breaker CB2 Verify that CB2 LED is on 5 Select the SOURCE 2 button in the SOURCE XFERS menu 6 Close output breakers and if supplied Verify that CB3 and CB3A LEDs are on 7 Verify that STS SOURCE 2 and OUTPUT LEDs are on 8 Open bypass breaker CB5 Verify that CB5 LED is off 9 Rotate the keys in the 5 interlock to extend the interlock 10 Remove the proper key from the 5 interlock and insert it in the CB1 breaker interlock 11 Rotate the key to retract the CB1 breaker interlock 12 Close source input breaker Verify that CB1 LED is on 109 Operating the Liebert STS2 LED Display 14 2 4 Normal System Shutdown The Liebert STS2 can be shut down from either the static switch mode or the bypass mode Shutdown in Static Transfer Switch Mode When the Liebert STS2 is operating in static transfer switch mode not maintenance bypass mode 1 2 4 Turn off the load equipment manufacturer
40. Equivalent Binary value Equivalent 1 0 1010 0001 1 1011 0010 2 1100 0011 3 D 1101 0100 4 E 1110 0101 5 F 1111 0110 6 0111 7 1000 8 1001 9 The hex value for each group is entered in the command as four digits To summarize the procedure 1 Set each bit position 2 Convert the binary value each group into its hex equivalent 3 Enter the hex values for each group in order into the command for the value parameter The following example explains how the conversion is completed 82 Communication Interfaces Putting the Terminal Command Together For example a unit only has the Remote Source Selection and Dual Output Breaker options installed Checking the bits list under Options_1 on page 81 bits 7 and 0 each must be set to 1 to indicate that these options are installed The bit setting is as follows starting with bit 15 on the left and going down to bit 0 0000 0000 1000 0001 With the bits combined in groups of four the binary settings can be translated into hexadecimal values The first two groups in the sample equal zero 0 In the third group 1000 in binary translates to 8 in hex In the fourth group 0001 in binary translates to 1 in hex In hex this equates to digits in the value parameter cannot have spaces between them 0081 So your command to indicate that the Remote Source Selection and the Dual Output Breaker are installed would be SPT 2 6 0081 83 Communi
41. Event Display Faults and alarms that remain active or are not recoverable are not affected when this button is selected This button is also used to perform manual I Peak resets and manual retransfers SILENCE turns off the audible alarm horn or beeper without resetting the triggering event This setting does not permanently turn off the horn The alarm sounds again when the next event with an audible alarm setting 1s triggered Active events are shown in the Event Display whereas cleared events can be reviewed via the Event Log Event Display The Event Display lists the condition of the Liebert STS2 in real time Both nominal system parameters and alarm messages are displayed the Event Display You can touch any message in the Event Display to display more information in the Display Panel to the left The selected status is displayed in bold type Menu Bar As previously mentioned the menu bar provides both configuration choices and information The choices under the Config and Log menus access additional dialog boxes while the other menu choices only show information in the display panel Configuration Menu When you select the CONFIG Configuration menu choice a pop up menu is Confi tion 5 displayed with four choices System Ratings used to configure frequency voltage and currents settings for the Liebert STS2 Event Mask allows you to configure system s response for events U
42. Isolator board ICI provides an Liebert STS2 module interface for up to eight external user alarm or message inputs to be routed through the Liebert STS2 s alarm network See 6 4 Input Contact Isolator Board for more information on the ICI If your Liebert STS2 has the ICI option installed list the settings below for future reference If control power is lost in the Liebert STS2 the settings are not saved Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 142 Ensuring The High Availability Of Mission Critical Data And Applications Emerson Network Power a business of Emerson NYSE EMR is the global leader in enabling Business Critical Continuity from grid to chip for telecommunication networks data centers health care and industrial facilities Emerson Network Power provides innovative solutions and expertise in areas including AC and DC power and precision cooling systems embedded computing and power integrated racks and enclosures power switching and controls infrastructure management and connectivity All solutions are supported globally by local Emerson Network Power service technicians Liebert AC power precision cooling and monitoring products and services from Emerson Network Power deliver Efficiency Without Compromise by helping customers optimize their data center infrastructure to reduce costs and deliver high availability While every prec
43. J51 Customer provided normally open dry contacts for user alarm messages Refer to installation operation and maintenance manual for configuring the Input Contact Isolator board option All control wiring by others must be run separate from power wiring Control wiring runs should not be combined in the same conduit Refer to static transfer switch control connection diagram Figure 21 or 22 for location of Input Contact Isolator board option Signal voltage 100mA 12VDC Maximum cable length 500 ft 152 m with 16 AWG flexible stranded cable All wiring must be in accordance with national and local electrical codes When the Transfer Inhibit option is supplied connect a N O dry contact customer supplied to Input Contact 8 Pins 15 and 16 When the customer contact closes transfers will be inhibited as long as the contact remains closed Input Contact 8 is factory set so no setup is required The Transfer Inhibit option prevents Input Contact 8 from being used for any other input 38 Installation Drawings Figure 26 Control wiring for comms board EXTERNAL MODEM SEE DETAILA 200000000 NO CUSTOMER NO CUSTOMER CONNECTION SEE DETAIL B CONNECTION COMMS BOARD 02 810015 XX CUSTOMER SUPPLIED CUSTOMER SUPPLIED INTERCONNECTING CABLE INTERCONNECTING CABLE TO EXTERNAL MODEM TO LIEBERT SITESCAN SEE NOTE 2 SEE NOTES 182 481 55 PS213003 DETAIL A DETAIL Rev 02
44. Liebert STS2 can have optional communication ports installed See 6 0 Options and 12 0 Communication Interfaces on page 76 for more information on communication options On LED Display units the RS 232 interface is used for configuration and status and event log monitoring The RS 232 interface can also be used with the Color Graphical Display units if necessary Firmware The operator interface enables you to monitor the Liebert STS2 to configure set points for transfers monitor system parameters and access event and history logs The firmware is accessible through the LCD touch screen if installed or the RS 232 interface The firmware includes View and set the preferred source View and configure setpoints View alarms faults and status Additionally the Color Graphical Display unit provides The mimic graphical representation of the systems operation Menu driven monitoring and configuration Step by step instructions to assist you in the startup shutdown and bypass operations Help on event messages Touch screen alarm reset and silence buttons Events in the system both faults and alarms are detected and displayed on the LCD See 11 0 Alarm and Faults on page 71 for more information on events A set of event masks can be configured through the LCD to trigger a system response to an event See 11 1 Event Mask Report event conditions from other components of the system Monitor and rep
45. Manual A CAUTION Risk of equipment damage and personnel injury Use of Auto Restart is site specific Do not enable auto restart unless the infrastructure is designed for unattended operation and there 1s no chance of equipment or personnel harm by automatic re energizing of the system Consult with your Emerson site engineer as to whether Auto restart should be enabled 92 Liebert 5752 Touch Screen Display 13 7 4 System Settings The System Settings choice under the Config menu displays another pop up menu with three choices Comm Options see Section 13 8 System Options see Section 13 9 System ID see Section 13 10 To access the System Settings menu 1 Select CONFIG from the menu bar 2 Select SYSTEM SETTINGS from the Config menu 13 8 Comm Options The Comm Options dialog box allows you to configure the communications settings for the Liebert STS2 Select COMM OPTIONS from the System Settings Menu If needed see 13 7 4 System Settings to access the System Settings menu The Comm Options dialog box is displayed See Figure 55 An option can be enabled by selecting YES An option can be disabled by selecting NO An option can be configured by selecting the adjacent option button to display a separate configuration dialog box The instructions for configuring the communications options are provided in this section Option Refer to Modem 13 8 1 Configuring the Modem Pager 13 8 2 Co
46. SNMP Web HTTP terminal block provides the connection to Modbus See Figures 21 and 22 for the location of the Liebert SNMP Web Modbus 485 card See Figure 27 control wiring information If you have questions about the Liebert SNMP Web Modbus 485 card refer to the user guide SL 52615 available at the Liebert Web site ww w liebert com 15 Options 6 7 6 8 6 9 6 10 6 11 LED Display A light emitting diode display is available to replace the standard liquid crystal display touch screen control The display provides monitoring and control throuh a series of LEDs and buttons LEDs alert you when a problem occurs A PC running terminal emulation software connected to the RS 232 port is needed to access the data and configuration settings Remote Source Selection The Remote Source Selection allows the preferred input source to be chosen from a remote location A user supplied normally open dry contact allows the user to remotely select a source to be the preferred source in the same process as the local source transfer selection The unit s preferred source selection and Remote Source Selection are active at the same time with the Liebert STS2 following the last request for a preferred source change regardless of whether it was from the local or Remote Source Selection controls See 10 3 Enabling Remote Source Selection for instructions on enabling the Remote Source Selection See Figures 21 and 22 for the
47. Upstream overcurrent protection should have ampacity equal to or less than the ampere rating of the static switch 33 Installation Drawings Figure 21 Control connection location diagram 100 600 amp Liebert STS2 OO0ELZSd NOILdO SOVSYSLNI IN33OW TVNH3 LX3 NVOS3LIS 193931 X04 QHVOS8 SWWNOOD uondo pled 889 3 8 499917 3LON 335 NOILdO ANI 3718VIAINVeHOOd HO NOLLdO HOLV1IOSI LOV LNOO LAdNI 310N 33S NOILdO AV T3 3 18V IWIAVHOOMHd ILON 33S NOILdO AV 1338 3 18VIWIAVHOOMHd NOILdO 19313S FOYNOS SLOWSY dasn 38 squvog AV T3H OML dO INQIWIXVW Z NMOHS 33V SNOILdO TVOIdAL L SALON NOILLVOO T NOILdO NOILVOOT NOILdO 33S HOOG LNOYS LNOH 34 Installation Drawings Figure 22 Control connection location diagram 800 1000 amp Liebert STS2 008 LcSd NOILdO 39 VJH3INI W3GOW TIVNH3LLX3 NVOSALIS 1M383l1303 5 10140 pe 98 93 51 ueqer1 Z SLON 33S NOILdO JTEVINWVYSONd NOLLdO 1 1081 LOV LNOO LNdNI SLON 33S NOILdO 18 SLON 33S NOILdO 318VIAWVHoOOHd NOILdO 193138 05 SLOWSY q3S n 38 NVO 80 JIIYNNY
48. YOO 14 Z L 1SV31 LY QN31LX3 OL 59 1 L3340V88 HOO T3 40 81018 OLNI S8V1 NOILISOd OLNI LANIEVO 3AOW 9 38n9l3 c 38n9l3 1399 aariddns LON JYYMAYYH 14 1399 HOO 1s NHV3H LON HOO 13 3NIT130014 aaridans l13MOVH8 3SVH l3NI8VO l3NI8VO 40 LNOws 35 SI L3340 V8 Y3L4Y N31H9LL ANY LAN 9NDI201 L108 9NIT3A31N3SOO1 310N WN Z Lv 81 996 OL 300401 6 ISN ONIOVA 39NV 14 LN38 HLIM LINN dO 3GISH3QNf NO S310H ONILSIX3 OL 67914 13 0 v8 3SV8 L3NIBVO 1 4 TIVLSNI v qasn938 SI L340VH8 W3l3v N31H9LL LAN 9NDI901 L108 SNIT3A31N3S001 ILON UIN 219 91 996 OL 300401 ANY G3riddns ISN MOVE SNIOV3 S8V L LINN dO 3GISH3QNf NO 310H ONILSIX3 OL 913 LAMOVUE 3SV8 13NI8VO HV3H TIVLSNI S1389NOO JHL OLNI ZL Y dO HLd3Q V 01 1 914 SATOH THC TIVA MOVE 41 1531 HOO T4 NO SL340V88 HOO NOILISOd 2 SNOILONYLSNI 5 MOTIOS 814408 LON LNSTVAINDA 24 L 3it 8 4138 Qv3aH qaq 13SAVtq MLI 2 1 Y00743 GAGNAWNOO3N L SALON 3460913 9NIHOHONV 01 5135 WALSAS MAIA dOL YV
49. a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured AUTO REXFER INHIBIT Automatic Retransfer Inhibited The system made five transfers from the preferred source to the alternate source in the last five minutes As a result automatic retransfers back to the preferred source is now disabled To clear this alarm condition assign the alternate source as the preferred source This alarm also is cleared if the unit transfers to the preferred source due to an alternate source AC volt failure i e an emergency transfer Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 51 OPEN Circuit Breaker 1 for Source 1 Open Circuit Breaker 1 is not closed Check that the Circuit Breaker 1 switch is in the desired position Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing t
50. and display PDU specific metering and alarm information 99 Liebert 5752 Touch Screen Display 13 10 4 Pole Transfer Switch This option is not available factory set to No Shunt This selection is set at the factory Wye Output Transformer The Wye Output Transformer controls the firing of the SCRs on startup which minimizes the inrush into PDU transformers Output breakers and PDU input breakers have to be closed when you start up the system Based on whether the input side of the PDU transformer is configured as a Wye or Delta changes the firing sequence of the SCRs If the Liebert STS2 is connected to a PDU configured as a Wye Select YES for the Wye Output Transformer choice in the System Options dialog box Remote Source Selection If your system is configured with the optional Remote Source Selection it must be enabled from the System Options menu See 5 5 Remote Source Selection Wiring for more information If the system is utilizing Remote Source Selection Select YES for the Remote Source Selection choice in the System Options dialog box to activate the option System ID Most of the settings for System ID are set by Emerson either at the factory or when the unit is installed Order No System Tag No System ID No and Model No are the numbers used to identify and track the system Language Time and Date are synchronized with the location of the unit The only configurable field is the P
51. and an overload condition has occurred on one or more phases Note The overload setpoint is a single fixed number 10196 An overload condition is detected when the measured load current is equal to or greater than the setpoint Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 52 OVERCURRENT Source 1 Overcurrent Liebert STS2 is running on Source 2 and an overload condition has occurred on one or more phases Note The overload setpoint is a single fixed number 10196 An overload condition is detected when the measured load current is equal to or greater than the setpoint Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display
52. as one source is available Solid state switching devices are packaged to allow safe repair of those devices without having to de energize the load All non automatic switches or circuit breakers are the plug in or draw out type to allow replacement without de energizing the load All solid state power switching devices are rated to prevent hazardous device failure in power systems with available fault currents up to the defined limits as listed in 15 1 5 Electrical Requirements Factory Backup and Service Assistance Because improper installation can cause a system to fail a Liebert Services service technician should thoroughly inspect the unit to ensure it is properly installed and its operating parameters are properly configured Once the Liebert STS2 is properly installed you as the on site operator can easily monitor the unit s operation utilizing the touch screen or LEDs If you need assistance or have questions contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Modes of Operation Normal Preferred Source Under normal operating conditions the Liebert STS2 routes power from the preferred input source to the output load The unit monitors the voltage current and phase of each source to ensure that both are operating within set tolerances and that the alternate source is available should a transfer be required Transfer Should the preferred source fail or be outside acceptable voltage limits
53. at the same time to reset alarm Push this button simultaneously with the K button to reset an alarm M Alarm reset push button condition An alarm can only be reset if the hardware condition permits a reset A red LED is lit when an alarm condition is present in the Liebert STS2 N Red Alarm present Connect a PC terminal to the Liebert STS2 to locate the exact cause See 12 0 Communication Interfaces for PC terminal commands 1 Green CB1 closed A green LED is lit if CB1 is closed indicating power is flowing to the static transfer switch from Source 1 2 Green CB2 closed A green LED is lit if CB2 is closed indicating power is flowing to the static transfer switch from Source 2 3 Green CB3 closed A green LED is lit if the output breaker switch is closed 3A Green CB3A closed A green LED is lit if the output breaker switch is closed CB3A is installed on units with dual output breakers 4 Yellow CB4 closed A yellow LED is lit if the Source 1 bypass breaker switch is closed 5 Yellow CB5 closed A yellow LED is lit if the Source 2 bypass breaker switch is closed 104 Operating the Liebert STS2 LED Display 14 1 3 Event Controls When an alarm is triggered a red LED is lit in the control panel A pair of buttons allows you to turn off the horn and reset the alarm 14 1 4 Key Lockout Switch An optional key lockout switch for the Liebert STS2 enables or disables all push button inputs except for the al
54. configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard PWR SPLY LOGIC FAIL Power Supply Module Failed The power supply logic module contained in the primary power supply has failed Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log is so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard OUT VOLT SENSE FAIL Output Voltage Sense Module Failed The module contained on the snubber monitoring the output voltage has failed Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETUR
55. faults The LCD provides a color back lit touch screen as a user interface In addition to the Mimic and the system parameters the screen provides a series of menus to allow you to configure the Liebert STS2 including the control of the preferred source auto manual retransfer selection alarm notification and other system setpoints The touch screen also provides buttons to reset alarms and turn off audible alarms such as a horn 13 1 Display Overview The Liebert STS2 Color Graphical Display provides three areas of information plus buttons and a series of menu choices The Color Graphical Display contains the following features Mimic a graphical diagram of the status of the unit Event controls allow you to reset alarms and turn off audible alarms Event Display displays any active alarm or fault condition in real time Menus provide choices and configuration settings in dialog boxes or information in the display panel Display panel provides additional information depending on the menu choice that was last selected This information includes event help text and startup and bypass procedures Figure 48 Liebert STS2 touch screen display Mimic SOURCE 2 A B B C C A 195V 195V 195V DA 0 OA Event Controls SILENCE O Liebert KEEPING BUSINESS IN BUSINESS amp Display Panel EMERSON Network Power Event Display CONFIG Locs SOURCE XFERS STARTU
56. location of the Remote Source Selection option See 5 5 Remote Source Selection Wiring on page 13 and Figure 23 for information on the control wiring Key Lockout Switch The key lockout switch activates a software lockout of the touch screen display to prevent manual transfers and configuration changes When locked out the touch screen becomes a read only display A key is needed to do manual transfers or change settings The alarm silence button is not disabled when in the lockout position The switch is located behind the front door but can be operated without opening the front door See Figures 8 to 10 for the key lockout location on each unit See 14 1 4 Key Lockout Switch for instructions on using the key lockout switch Redundant Output Breaker An output plug in non automatic circuit breaker is provided which allows redundancy in the output power path The breaker is connected in parallel with the output plug in non automatic circuit breaker Transfer Inhibit Transfer Inhibit prevents the Liebert STS2 from transferring under certain conditions When a customer supplied closed dry contact is provided the Liebert STS2 will not transfer and remain on its present source even if the source is no longer supplying power This option requires an Input Contact Isolator board see 6 4 Input Contact Isolator Board 16 Options 6 12 6 13 6 14 Input Junction Boxes and Cables Two input power junction boxes
57. neutral must be connected to the Liebert STS2 See Figure 3 on page 10 for a typical one line diagram Refer to Figures 14 to 19 for electrical field connections on all units with both single and dual output breakers Power and Control Wiring Figure Typical static transfer switch one line diagram 5 2 SOURCE 1 SOURCE 2 Pye OUTPUT The input and output power wire size should be based on the upstream overcurrent protection device observing the NEC and local codes The molded case switches contained in the Liebert STS2 are typically non automatic circuit breakers that rely on the upstream and or load overcurrent protection Upstream overcurrent protection should be rated equal to or less than the rating of the Liebert STS2 molded case switches The Liebert STS2 input and output power and ground and neutral bus bars accommodate a wide range of wire sizes The Liebert STS2 bus bars accommodates standard 2 hole lugs Table 2 Input output conduit plate specifications Rating number and size 100 250A 6 3 conduit 400 600A 9 4 conduit 800 1000A 12 4 conduits Input Junction Box Installation Optional The input junction box option is available to simplify input connections to the Liebert STS2 Two input junction boxes and the associated flexible 10 foot long 8 meter input cables are provided with this option This option is available only with bottom cable entrance typically when
58. on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INTERNAL COMM FAIL Internal CAN Communications Failed Communications have failed in the CAN bus between the control board and the touch screen control Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard EXTERNAL COMM FAIL External Communications Failed Communications have failed between the control board and the CAN options Press SILENCE o
59. on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured PRIMARY FAN FAIL Primary Fan Failure One of the primary cooling fans for the Liebert STS2 has failed The alternate fans are now running The alternate fans are not monitored Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured CONTROL MODULE FAIL Control logic module has failed One of the control modules on the control board has failed Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if
60. one line diagram of two PDUs and a Liebert STS2 SOURCE 1 SOURCE 2 MICB1 MICB2 alias ISOLATION T ISOLATION TRANSFORMER TRANSFORMER T 93 CB3 CB5 225A 225 225 225 225 225 5 4 Control Wiring Connections No control wiring is needed on the standard Liebert STS2 Only certain options require external control wiring See 6 0 Options on page 14 for details 12 Power and Control Wiring 5 5 5 6 Remote Source Selection Wiring An optional Remote Source Selection board may be installed in your Liebert STS2 This board is installed in the same bay as the communications options See Figures 21 and 22 for the location of these options See Figure 23 for information on the control wiring for the Remote Source Selection option The Remote Source Selection allows you choose the preferred input source from a remote location Terminal connections allow the customer to remotely select a source to be the preferred source in the same process as the local source transfer selection The unit s preferred source selection and Remote Source Selection are active at the same time with the Liebert STS2 following the last request for a preferred source change regardless of whether it was from the local or Remote Source Selection controls A six pin terminal block provides the Remote Source Selection connections Two pairs of wires are used from the switch to trigger the source selection You
61. or the DB9 RS 232 connector located next to the LCD display behind the front door See Figure 28 on page 41 for details 57 Introduction to Liebert STS2 Operations 8 1 2 8 2 8 2 1 8 2 2 8 2 3 Reliability and Agency Requirements The Liebert STS2 is designed for high reliability and high availability with a critical bus Mean Time Between Failure MTBF exceeding 1 000 000 hours The Liebert STS2 Control Power Module and all its options are designed tested and certified where applicable to meet agency requirements as follows UL 1008 Transfer Switch Equipment for UL and ULc listing UL1459 Telephone equipment Modem NEC FCC Part 15 EMI emission limits for Class A computing devices The Liebert STS2 uses conservatively rated components minimizing the need to go to maintenance bypass All maintenance and repair work can be done through the front panel of the unit This access makes repairs and maintenance easier Gating and control logic are partitioned so that failure of one source s gating or sensing logic does not prevent the switch from transferring to the other source All control and logic components are mounted separate from the power components The Liebert STS2 is designed to minimize the exposure of hazardous voltages to allow safe servicing of the unit while the load is energized All electrical components requiring normal maintenance are replaceable without de energizing the load as long
62. provides an interface for up to eight user inputs External messages and alarms can be routed to the unit via the ICI See Configuring the Input Contact Isolator Settings on page 96 for instructions on configuring the connections See Figure 25 for wiring details Programmable Relay Board PRB optional up to two PRBs can be installed in the Liebert STS2 to route Liebert STS2 events to external devices See Configuring the Programmable Relay Board Settings on page 97 for default settings and instructions for reconfiguring the relays See Figure 24 for wiring details Comms Board optional includes a terminal block to provide a DTE connection to an external modem This board also provides a direct connection to a Liebert SiteScan terminal via an RS 422 Liebert SiteLink 12 or Liebert SiteLink 4 is required for Liebert SiteScan to communicate with the Liebert STS2 See Figure 26 for wiring details Data link requirements are Full Duplex Asynchronous RS 232 format Communications options are also discussed in 6 0 Options Using the RS 232 Port The RS 232 port is configured with a baud rate of 9600 with 8 data bits 1 stop bit no parity and no hardware handshaking 76 Communication Interfaces 12 1 1 Connecting and Using a Terminal An RS 232 connection can be used to connect the Liebert STS2 to either a terminal or a PC running terminal emulation software If you are unsure of the cable pin out see 15 2 10 Termina
63. ringing transients 125 for 30 minutes 100A 400A 125 for 10 minutes 600A 1000A 150 for 2 minutes Overload Capability 500 for 0 25 sec Table 19 Unit short circuit withstand capability Unit Voltage Unit Amps Withstand Capability 100 250A 125kA 208 240V 400 600A 150kA 800 1000A 100kA 100 250A 100kA 380 480V 400 600A 100kA 800 1000A 65kA 100 250A 50kA 600V 400 600A 25kA 800 1000A 25kA 15 1 6 Input Surge Suppression The Liebert STS2 is equipped with transient voltage surge suppression on each input for maximum surge suppression The surge suppression is capable of protecting the Liebert STS2 from operating outside of tolerances due to surges as defined by IEC 1000 4 5 1 2 50uS surge 2kV CM and 1kV DM as required under EN 50091 2 15 1 7 Response Time A dual level fast slow transfer threshold is used for under voltage detection to allow the Liebert STS2 to be compatible with UPSs and generators The voltage thresholds and the slow transfer delay time is user adjustable The fast transfer delay time is less than 4 ms The over voltage detection uses a single threshold with programmable level and delay time See User Settings on page 89 for instructions on configuring these settings 15 1 8 Environmental Requirements See 3 0 Location Considerations for details concerning environmental requirements for the Liebert STS2 112 Specifications 15 2
64. s recommendations Open CB3 to turn off the static switch output Open if the static transfer switch is a redundant output configuration The LEDs for CB3 and if supplied and the output OUT are turned off Open the input switches CB1 and CB2 The LEDs for CB1 and CB2 are turned off To completely de energize the unit turn OFF the power to both inputs to the Liebert STS2 Shutdown in Maintenance Bypass Mode When the Liebert STS2 is operating on bypass 1 2 Turn off the load equipment per manufacturer s recommendations Open the bypass switch CB4 or 5 to turn off the Liebert STS2 output The LED for the bypass switch is turned off The output OUT LED is turned off To completely de energize the unit turn OFF the power to both inputs to the Liebert STS2 110 Specifications 15 0 SPECIFICATIONS 15 1 15 1 1 15 1 2 15 1 3 This section provides the specifications for the Liebert STS2 System Configuration The Liebert STS2 can be set in several different configurations according to the model and location The configuration is set at the factory and does not need to be changed by the customer These configurations apply to both units the Color Graphical Display and an LED Display Frequency The Liebert STS2 accepts input frequencies of 50 Hz and 60 Hz The frequency shall be within 0 5Hz of the nominal frequency Input Output Voltage The Liebert STS2 models ar
65. so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 118 Event Message Help Text PWR SPLY DC A FAIL Power Supply DC Bus A Failed The primary power supply is no longer providing DC power to the control board and the touch screen Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard PWR SPLY DC B FAIL Power Supply DC Bus B Failed The secondary power supply is no longer providing DC power to the control board and CAN options Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The al
66. switch is bolted to a wooden shipping pallet to allow handling by forklift equipment or a pallet jack Easily Moved The unit is furnished with integral castors that allow the unit to be rolled into place after it has reached its location and is removed from the pallet A WARNING Exercise extreme care when handling static switch cabinets to avoid equipment damage or injury to personnel The cabinet can be safely tilted 15 degrees in any direction by forklift If moving the unit up a ramp on its casters or a pallet jack ensure that the incline does not exceed fifteen 15 degrees Locate the center of gravity symbols 4 and determine the unit s weight before handling the cabinet Check the unit size and weight Refer to the cabinet drawings furnished with the unit for size and weight Typical cabinet dimensions are shown in Figures 5 through 7 Typical unit weights are 100 250 amp 780 Ib 354 kg 400 600 amp 1200 Ib 544 kg 800 1000 2500 Ib 1134 kg Plan the route Review the route over which the unit will be transported to its installation location to ensure that all passages are large enough to accommodate the unit and support the weight Check for any non negotiable corners or offsets in hallways Before moving the unit to the intended location review 3 0 Location Considerations Unit Preparation The unit can be removed from the pallet before it is moved to its location Comp
67. system event messages This help is also available through the touch screen interface 17 0 Maintenance briefly discusses routine maintenance provides proper torque settings for nuts and bolts and provides the Emerson contact information for technical support Safety Precautions 1 0 SAFETY PRECAUTIONS Read this manual thoroughly before working with the Liebert STS2 Be sure to review the warning under Important Safety Instructions on page 1 Refer to the Handling Considerations on page 5 before attempting to move the unit Under typical operation and with the doors closed only normal safety precautions are necessary The area around the Liebert STS2 should be kept free from puddles of water excess moisture and debris The vent grate in the front of the system should not be obstructed in order to ensure a smooth air flow through the unit for cooling ONLY qualified service personnel should perform maintenance on the Liebert STS2 When performing maintenance on any part of the equipment under power service personnel and test equipment should be located on rubber mats The service personnel should wear insulating shoes for isolation from direct contact with the floor Unless all power is removed from the input sources to the unit one person should never work alone A second person should be on hand to assist and summon help should an accident occur Three types of messages are used throughout this manual to stress import
68. the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 131 Event Message Help Text CB3A OUTPUT OPEN Circuit Breaker 3A Output breaker is Open Optional Circuit breaker 3A is not closed This circuit breaker is assigned to the output load The power flow to the load cannot flow through the static transfer switch Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 51 PHASE ROT ERROR Source 1 Phase Rotation Error A phase rotation error condition exists on Source 1 Check the phase sequence ABC of Source 1 Transferring to Source 1 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm
69. to open the Logs menu 2 Select either HISTORY LOG 1 or HISTORY LOG 2 from the menu 3 Select the appropriate buttons to replay the log Select PREV to go to the previous frame in the sequence Select NEXT to go to the next frame in the sequence Move the green cursor to the location from which you would like to play the sequence of events Select REPLAY to play the frames automatically from the point of the cursor Select STOP to halt the replay Select RESET to return to the first frame in the log 4 Select EXIT to close the History Log The data remains in the log Use CLEAR HLOGS to remove the data from both history logs NOTE Event and History Logs are protected by security The password or a disabled key lockout is required on such equipped units to clear these logs Source Transfers The Source Transfer choice SOURCE XFERS allows you to manually select a preferred source To switch the primary source refer to the instructions in 10 2 Manual Transfer Preferred Source Selection Startup Procedure You can access instructions for starting the Liebert STS2 from the menu bar From the menu bar select STARTUP PROC These instructions are also provided on 10 1 Normal System Startup for Color Graphical display units and 14 2 1 Normal System Startup for LED Display units Bypass Procedure You can access instructions for bypassing the static transfer switch from the menu bar From the menu bar sele
70. 0 ten The default setting is 5 The settings have an increment of 1 one b Select OK to save the setting The setting is now displayed in the adjacent field in the User Settings dialog box You can select TEST to briefly sound the alarm to judge its volume Select DISPLAY BRIGHTNESS A dialog box is displayed with HI and LO settings This choice sets the brightness for the touch screen a Configure the Contrast and Brightness settings with a range of 1 10 ten b Select OK to save the settings Set the AUTO REXFER ENABLE choice The auto retransfer enable setting determines whether the switch automatically returns the preferred source after that source is restored Select YES to enable the automatic transfer Select NO to disable the automatic transfer The setting requires transfers be done manually Set the AUTO RESTART ENABLE choice This setting determines whether the Liebert STS2 can be started automatically when power is restored after it has been lost Select YES to enable the automatic restart Select NO to disable the automatic restart This settings requires a manual restart of the Liebert STS2 Select a setting for the RESET Select AUTO to configure the Liebert STS2 to automatically reset when a fault clears and the voltage and current are normal Select MAN to require a manual reset of the Liebert STS2 when fault clears and the voltage and current are normal The default setting is
71. 1 bit11 not used set to 0 bit12 not used set to 0 bit13 not used set to 0 bit14 EnableDialIn bit15 EnableDialOut Comms Options 2 bitO EnablePager bit1 EnableOCDINormallyClosed bit2 3 OCDO1Assignment 0 User Defined 1 Standard Set or 2 AS400 bit4 5 OCDO2Assignment 0 User Defined 1 Standard Set or 2 AS400 bit6 through bit15 not used set to 0 81 Communication Interfaces Critical Option Enabling bitO EnableManual_IPeakReset bit1 EnableAutoRestart bit2 through bit15 not used set to 0 Non Critical Option Enabling EnableAutoReXfer bit1 through bit15 not used set to 0 The bits are set in reverse order from bit 15 on the left to bit O zero on the right The bits are grouped in four sets of four bits each as such 0000 0000 0000 0000 Since each bit represents a setting a bit can be enabled or disabled 1 installed option or enabled feature 0 option not installed or feature not enabled Enabling or disabling the bits in each group creates a binary value for that group For example if the fourth bit in a group is set to 1 the group group s binary value is 0001 Each group is translated into a hexadecimal equivalent The group with the value of 0001 has a hex equivalent of 1 You can use this table to help with the conversion Table 12 Binary hexadecimal conversions Hex Hex Binary value
72. 10 three pole branch circuit breakers 100A 250A The panelboard is rated at 600A with an overall short circuit rating of 100 000 AIC The full height cabinet mounts on either the right or left side of the Liebert STS2 and is fully enclosed with a keylock door and an accent cover that permits access to the panelboard without exposing other portions of the Liebert STS2 Input Contact Isolator Board The Input Contact Isolator Board ICI provides an Liebert STS2 module interface for up to eight external user alarm or message inputs to be routed through the Liebert STS2 s alarm network The eight contacts are normally open dry contacts When a contact closes an event is triggered The Input Contact Isolator options are configured through the Input Contact Isolator dialog box which is accessed from the Comm Option dialog box on the touch screen display You also can program the alarm messages through this dialog box See Configuring the Input Contact Isolator Settings on page 96 for instructions on configuring the connections See Figures 21 and 22 for the location of the ICI See Figure 25 for wiring details Comms Board The Comms Board provides a communication interface to Liebert SiteScan a site monitoring product and or an external modem Liebert SiteLink 12 or Liebert SiteLink 4 is required for Liebert SiteScan to communicate with the Liebert STS2 The Comms Board is equipped with an RS 422 communication port for communication to a L
73. 1334 318V1Snrdv 2515 IHL N3SOO1 7681 14 68 OL ANOYOL H3HSVM 1 14 ANY YSHSVM 1148 MIYOS WWOPXSZ L ZLW ASN 10081254 OMG 9I3 9I3 GNVLS 14 IHL JO LNOYS IHL ONIOVS 3ONV I4 LNA HLIM SATOH ONILSIXS ONISN GNVLS YOO 14 JHL OL L340V88 2515 YAMO7 V3 TIVLSNI NOILVTIVLSNI OL TIY MOSHO L SALON NOILVTIVLSNI g IlIVL3d 1009 MAIA WOLLOG NMOHS SV 31V Id ONILNNOW OL I3TIVHVd 1004 NONW ALV1d ONILNNOW ram X VIG 509 MAIALNOYS y ggv 33S 46 96 45 Installation Drawings Figure 33 Installation drawing seismic floor stand 100 250A 0 LOOSLCSd LAMOVEd ONILNNOW HLIM GNV1S HOO 14 dO ACIS 1 vols 13 1004 M3 T13 31 LAN 1004 H3T3 31 SLAMOVEE Y3ddN HLIM 2515 dO ACIS LHOld 13 2515 uvas S IIVL3G 00SLZSd ANY Z00SLZSd 0008LZSd S MA 33S ALON 1 4 l3MO0VH8 2515 P d LNO J 515 0868 00 GNV1S 21 5135 HOJ ONIMYYA NOILYTIYLSNI H3HSVM ZLW H3HSVM 9901 1146 8 L ZLIN MANOS Sa0Vid l3940VH8 2515 YVSY I3 0VH8 ONILNNOW H3MO 1 HLIM GNV1S dO MIA
74. 2 1 3 79 Communication Interfaces Table 11 Group settings and values continued Group Item Description Value Type Value Notes 1 SCR1 Fast Undervoltage Integer In of nominal below nominal Setpoint Group 3 User 2 SORT Slow undervoltage Integer In of nominal below nominal Setpoint Settings 3 SORT Slow Undervoltage Integer In number of lines cycles Detect Delay 4 SCR1 Overvoltage Integer In of nominal above nominal Setpoint SCR1 Overvoltage Detect 5 Delay Integer In 1 4 lines cycles 6 SCR1 peak Transfer Integer 10 Setpoint 7 SCR2 Fast U dervoltage Integer In of nominal below nominal Setpoint 8 SCR2 Slow undervoltage Integer of nominal below nominal Setpoint 9 Slow Undervellage Integer In number of lines cycles Detect Delay 10 SORA Overvoltage Integer of nominal above nominal Setpoint SCR2 Overvoltage Detect 11 Delay Integer In 1 4 lines cycles 12 SCR2 peak Transfer Integer 10 Setpoint Max Transfer Phase 13 Angle Integer In degrees 14 Output Frequency Integer Freq in Hz x 10 Deviation 15 ReTransfer Delay Time Integer In seconds 16 Horn Volume Integer Range 1 10 17 Critical Option Enabling Bitpacked See section 12 1 3 1 Non Critical Option Bitpacked See section 12 1 3 Enabling Group 4 e Mask settings Tor Event Mask See section 12 1 4 Event Mask Settings 64 t0 Event Mask Settings Tor Ev
75. 28 SH3lN3O WWZL 334 26 S2 879 SH3IN3O 062 ualsvo 9EL SH3lN3O WINZ I ASH LN3 IWO LLOS SH3lN3O IOH INOO HUlSVO 6 MAIA Yall 8v 3208 LON OG NIV HOLIMS 101009201 22 wings Installation Dra lon 800 1000 amp Liebert STS2 with the key lockout switch opti Figure 10 Outline drawing 20 et 10811 54 X MIIA MaIAWOLLOS 9 2 w m js Ber 66b dA 081 ONIMS HOOQ i se 0870 TL 87S AHLN3 WOLLOS 08D Q 62 SH3LN3D 318V9 1OHINOO V3iHV 1 01 987 1595 WOLLOG 318v u3MOd i gt ININZ I 33S LSNVHX4 SH3lN3O 269 Ha3lsvo 6FID 4749 99 TANVd 315 LNOHLIM NMOHS LINN dO V IIv L3d 3GIS MJA LNOMJ 0018 LON Od 0 SALON 339 310H ONILNNOW 1 vid WNZ 8 69 LSNVHX3 Yad W49 009 L L LINN SHL dO LHOISM JHL LYOddNS OL GNVLS 4 3H L 1534 LSNW SH31SVO JHL GASN SI GNVLS 022 41 3SV8 LINN HLVANYSGNN S31OH SNILNNOW LINN IHL ALIAVYD ALIAVHO OLNI d3avasH LSNW S1709
76. 5195 ONIMVYC NOILVTIVLSNI 15 Y00714 VOS2 NIA 5 58114 68 OL ANY YJHSYM 1V 1H H3HSVM 3901 1148 MANOS dVO WWOPXSZ L ZLW ONISN GNVLS OL LIMOVY HOVLLY SgT 14 16 OL 1 H3HSVM LV14 YSHSVM 3201 11148 MAYOS dVO Uuoexos L OLIN ONISN ZSLS OL LAMOVY HOV LLV 2009 264 VW TYLA L 915 SLAMOVY LNOY4 H3MO13HL TIVISNI 9 1004 33d lt 07195 SHOHONV NOISNVdX3 SLIOSNYL Qv3H vb X Z L ONISN 1995 GNVLS HOV LLV HOO 1H IHL ONIHONOL 38 LSNW 1334 T3A31 38 LSNW GNVLS 0074 000S1ZSd NO 8 V TIIVL3Q 1004 NI LON Wr S LAN N31H9LL 5 N3SOO1 1334 GNVLS 300714 dO 1vOLLH3A 15 OL 0008 254 MIIA WO LLOS NI NMOHS SV G31V LN3IISO 1334 GNVLS 0014 TIVLSNI GAYINOAY LON SS399V TIVM V OL LX3N 38 NYO GNVLS 40014 LAN Wr SLAN 1334 N31H9LL3H 681414 S OL ANDYOL H3HSVM LV14 YSHSVM 9901 11146 MIYOS WWOPXSL L ZLW ASN 1009 254 2 L9I3 LNOS4 IHL OL ONIOVS 39NV T4 LNI HLIM 2516 3HL JO LN NO S310H SNILSIX3 ONISN LAMOVYE 2516 YAddN LNOYS TIVLSNI 1008 LZSd Z 1 ANY 913 LNO ONIOVA S8V1 2515 3H1 dO 3GISH3ON NO S310OH SNILSIX3 ONISN L340VH8 2516 VAY TIVLSNI 1008 264 O 1 33S SLAN
77. 6 6 9 Key Lockout Switch boss hn AO sue ed Q bump ha PU C 16 6 10 Redundant Output 16 6 11 Transter Inhibit 5a eser ORC GORDON GS BUT e 16 6 12 Input Junction Boxes and 17 6 13 Seismic Floor Anthors u wae oe Vee hee wee ea A ae wea RV 17 614 Seismic Moor bs uu ees ba 17 7 0 8 0 8 1 8 2 8 3 9 0 9 1 9 2 10 0 10 1 10 2 10 3 10 4 10 5 11 0 11 1 11 2 11 3 11 4 INSTALLATION 5 18 INTRODUCTION TO LIEBERT 5152 OPERATIONS 57 System De scripbionos oes en te VE eR b EU eR RA PA VE E Sa UA 57 814 Redundance utan eda debs e UM ad 57 8 1 2 Reliability and Agency 58 8 1 3 Factory Backup and Service Assistance 58 Modes of 58 8 2 1 Normal Preferred 58 8 2 2 Trauster Siac ssw RR es ure Dope IE DA EET 58 82 9 Transfer Inbibit sirka VE POSU e bsc eens edad ae otto Dh oe oe enar tee 58 8 2 4 BypasSu am r be
78. 8 wings Installation Dra floor stand 400 600A Ing seismic Figure 36 Installation draw 0 0009LcSd MaAIAWOLLO L M3IA 9TH L3NOSI 19 ooe 19809628 9782 Scie ooe LoLovezs Sa CaO 48122 88062 LOgorezs 99 ze osi 19809628 LHOISH XVIN LHOISH LHOISH GNV1S YOO dO Nid 8 dAL 3191 LHOI3H 1 62 ANOYOL 8 1Wlad 1009 318v1 58114 S OL ANY 1V14 LHOISH H3HSVM 3201 11146 MIYOS WWOPXSZ L ZLW ONISN GNVLS HOO T4 OL LAMOVYE HOV LLV 325 788114 LE OL H3HSVM 1 14 ANY 201 11148 MIYOS dVO WWOEXOS L OLW 5 2515 OL 13 HOv LLV 9 5 TIVL3d 91 SLAMOWYE LNOYS H3MO1 JHL TIVLSNI 9 80091264 9ld3 1330 v3i8 GNVLS YOOTS HONOWHL 1SV31 LY QN31X3 OL 68 1 13 0 8 515 YSMO7 YV3Y NO SLOTS 3H1 OZNI LAN 13 0 v8 ZSLS HV3H NO SYL LYHL OS GNVLS HOO 14 3H1 1 2515 1 S 1004 Yad Z aariadns 01195 SHOHONV NOISNVdX3 SLIOSNUYL X Z ONISN 1334 GNVLS 40074 HOWLLV 0074 IHL ONIHONOL 38 LSNW 1334 T3A31 38 LSNW GNVLS 40014 0009 264 NO 9 9 V TIVL3d 1004 NI LAN SLNN ANY 5 N3S001 1334 GNVLS JO 1H
79. 8 Electrical field connections drawing 400 600 amp Liebert STS2 with single output breaker 29 Electrical field connections drawing 400 600 amp Liebert STS2 with dual output breakers 30 Electrical field connections drawing 800 1000 amp Liebert STS2 with single output breaker 31 Electrical field connections 800 1000 amp Liebert STS2 with dual output breakers 32 Liebert STS2 non automatic circuit breaker 5 33 Control connection location diagram 100 600 amp Liebert STS2 34 Control connection location diagram 800 1000 amp Liebert STS2 35 Control wiring for remote source selection 36 Control wiring for the programmable relay board 37 Control wiring for the input contact isolator board 38 Control wiring for comms 39 Control wiring for the Liebert IntelliSlot SNMP Web Modbus 485 40 Control wiring for the 5 282 port 41 Outline drawing for input junction 42 Color LCD touch screen 43 1 doe a
80. 88 YOOTS YVAN NOILISOd Z NALHOIL ATINI LON OG 108 Layoved 35 8 LANIavO 11084 OL SLSMOVYd 0014 1 084 HOVLIV N3Hl 913 13 0vN8 LSVAT LV 01 8891 13 9 9 40014 LON 51015 S8Vl NVdH NOILISOd OLNI 13 8 9 SNOILONYLSNI SYAYNLOVANNYW MOTIOS 04114401 LNFTVAINDA Z L M3K 080 HOHONV ONITINC 4138 GSY LASWVY MLI w b YOHONY YOO1S Q30N3AWO938 SALON 3un9l4 04 OIWSISS WALSAS NOUS MalA dOL INT Noon CY CY CY 8 LON NW 10 0 WI 201 AW 20 LG 44 iayovua YOHONY 40014 WW ttl 111 18 IW 682 0 0 aandans 13 0 8 3Svg J13N8V9 1NOMJ 13NI8V9 40 26 800 1000 amp Liebert STS2 hor draw Ismic anc yood 1 084 doli danddns 10N MOHONY Y00714 1 30014 80014 40 Layovud 5 8 13 893 TYM Adis SLE AW 268 Figure 13 Se ONIOWdS SS SS 310N 338 TvM Xov8 ONIOVdS wel 498 L wel 4 wel 1 310N 388 4OOTd AW SC AW SEC 968 866 866 wings Installation Dra le output breaker ing 100
81. 9I3H TVOLESSA 15 OL 0009 254 MIIA 101108 NI NMOHS SV GSLVLINSINO 1334 GNVLS TIVLSNI GaYINOAY LON SS399V dl TIVM V OL LX3N GALNNOW 38 NYO GNVLS P INNIN SLAN 1334 NALHOILSY 5914 S OL YSHSVM LV14 ANY YSHSVM 9201 11146 MIYOS L ZHN ASN 1009 264 Z 915 915 1NOSJ SHL OL ONIOVA SONV14 1N38 2515 SHL JO AGISYSGNN NO S310H SNILSIX3 ONISN 1330 vig 515 LNOSJ TIVLSNI 10091259 914 915 1 9NIOVJ SAVL HLIM 2615 3H 3GIS33Q0Nh NO S310H SNILSIX3 ONISN 139V38 2515 YaddN YVAN TIVLSNI L009L28d 9MG 9 TIVL3d 33S SLAN 1334 4313437 318V1Snrdv 2515 JHL N3S001 LAN 46 9 Sg T 14 S OL H3HSVM LV14 ANY H3HSVM 11145 MANOS WWOPXSZ L ZLW ASN L009L 28d 914 ANY 91 GNVLS YOOTS IHL JO LNO HL 39NV 14 LN38 HLIM S3 10H SNILSIX3 ONISN GNVLS HOO 13 SHL OL L3340VH8 2515 YAMOT TIVISNI 2 NOLLVTIVISNI OL 1 YAdOUd Od 3HVMQOSHVH MO3HO L Addis LNO34 SALON NOLLVTIVISNI 48 c X VIG Sc9 49 Installation Drawings Figure 37 Installation drawing seismic floor stand 400 600A 0 0091654 1 ONILNNOW HLIM QNV LS Y00714 dO vols l340VH8 W3MOTMWV3H 1004 4413441 LAN 1004 H3T3A31 S1339
82. A 1 3 1 2 3 B 4 6 4 5 TB3 CH7 A 7 9 7 8 9 10 12 10 11 12 13 15 13 14 15 1 3 1 2 3 Key N O Normally Open N C Normally Closed C Common Note Pin 16 not used on TB1 TB2 and TB3 6 2 Optimized Transfer When the Liebert STS2 is used as a primary side switch on the primary of an isolation transformer optimized transfer greatly reduces the transformer magnetization current during automatic transfers through a new transfer control algorithm The Liebert algorithm optimizes the transfer timing so that the volt seconds applied to the downstream transformer primary is balanced minimizing peak saturation current The volt second balance is achieved by directly computing the volt second applied to the transformer during transfer events and determining the optimum time to turn on the alternate source SCRs in order to balance the volt second within specified tolerance Optimized transfer also seeks to minimize the voltage disturbances while still maintaining transformer flux balance This unique flux balance algorithm does not just wait for the balance point to occur but will pulse fire the SCRs as soon as possible to minimize the voltage disruption This results in far superior voltage waveforms applied to the load 14 Options 6 3 6 4 6 5 6 6 Distribution Cabinet With I Line Panelboard 100 600A Units Only A distribution cabinet with a Square D I Line panelboard offers space to plug in up to
83. AS 8 4 Mn 9 62 USA gG iSnvuxa 1 401 A E __ 318VO 1 928 i AHIN3 dOL V 66 318VO gcc HHMOd 0 820 TANVd 3015 LNOHLIM 016 NMOHS LINN 40 1 4 V 1lVL3G 3GIS 991 OL SALON 33S 9 310H ONILNNOW 2 VIG 8 69 LINN SHL dO LH9I3M 3H L LYOddNs OL QNVLS SHL NO 1S3 LSNW SYSLSVO JHL qasn SI GNVLS HOO 41 LINN HLV3NH3ONn IWO d S310H SNILNNOW LINN IHL O NI 1 38 LSNW 51709 ONILNNOW GNVLS YOO14 HO SNINOHONV ALIAWHO OIINSI3S Suv 1 335 641 ONILNNOW GSqVayH_L OL H31N3O SZXSZX AZIS 317115 OL HOOG N3dO 3LIHM 440 Wal HO 102 1VOLLH3A 40 93G 9 NIHLIM L3NISVO d33 SNFIINVH LJEDISOH Od 31Vnoaav ATIVEN LONYLS SI WOLLOS LINN 681 006 LHOISM HOLIMS V009 XVI HH MM 8076 YH NLE OZSOL HOLIMS WOOP XVN HH MM YO Z HH n L8 0469 11141010 1V3H 66 39IAH3s NOILVTIVLSNI 1 3H L NI GSYINDAY SI WOWINIIN ININTL6 9 dO LSnVHX3 asinos LINN 3ONVHV3TO NIA ININZST 81 Z Su313NWITIIN S3HONI SHV SNOISN3MWIG L 044 9G6D 0 000 oO SALON V IIVL3Q 33S MAIA WO LLOS size 6
84. CK AIR FILTER 477 FRONT VIEW SIDE VIEW 23 4 594 Caster Centers 84 213 1 SEE DETAIL A POWER CABLE 24 4 TOP ENTRY AREA 29 736 13 5 343 CONTROL CABLE 12mm centers BOTTOM ENTRY AREA 5 POWER CABLE BOTTOM ENTRY AREA ici d EXHAUST 24 4 5 1 ENTRY AREA 619 centers MAX DOOR SWING 180 cm 130 BOTTOM VIEW TOP VIEW Notes 1 All dimensions are in inches and millimeters 2 75 2 18 457mm min clearance above unit required for air exhaust 47 12 dia 69 8 typ Clearance of 36 914mm minimum is required in the front for threaded mounting installation and service access hole 4 typ 4 Heat output 2710 btu hr 0 80 kW hr max for 100A switch see Note 10 4680 btu hr 1 37 kW hr max for 250A switch 5 Weight 780 Ib 354 kg E Leveler 6 Unit bottom is structurally adequate for forklift handling DETAIL A 7 Keep cabinet within 15 degrees of vertical while handling Front of Unit Without Side Panel 8 Color IBM off white 9 Open door to replace air filter disposable type size 1x25x25 10 Threaded mounting holes see detail a are provided for seismic anchoring or floor stand Mounting bolts must be threaded into PS211100 the unit mounting holes from underneath the unit base If floor Rev 03 stand is used the casters must rest on the floor stand to support the weight of the unit 18 wings Installation Dra
85. ED SET The STANDARD SET are the factory configured settings The STANDARD SET for the Programmable Relay Board settings are Table 14 Standard settings for programmable relays Relay Setting Definition 1 SOURCE 1 FAIL Source 1 failure 2 SOURCE 2 FAIL Source 2 failure 3 BYPASS CB4 CLOSED Switch CB4 is closed Source 1 is bypassed 4 BYPASS CB5 CLOSED Switch CB 5 is closed Source 2 is bypassed 5 TRANSFER INHIBIT A transfer between Source 1 and Source 2 is being restrained 6 OUT OF SYNC The phase difference between sources 1 and 2 exceeds the allowable threshold for transfer 7 EQUIP OVER TEMP The ambient temperature of the Liebert STS2 exceeds the recommended threshold for operation 8 blank No setting The USER DEFINED SET allows you to assign faults and alarms to each contact on the relay boards Utilizing the USER DEFINED SET you can also select Input Contact Isolators to associate with a programmable relay In addition individual events three other assignment choices are available SELECT ALL sends a summary event to the selected relay whenever any event occurs If this setting is selected for a relay no other event needs to be assigned for that relay ON SOURCE 1 or ON SOURCE 2 can be assigned to a relay to send a notification when that source is being used by the load Once configured the Liebert STS2 continuously checks the status of the items defined for each contact a
86. H and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 134 Event Message Help Text INPUT CONTACT 6 Input Contact Isolator 6 Occurrence of the indicated external event has been detected by Input Contact Isolator 6 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 7 Input Contact Isolator 7 Occurrence of the indicated external event has been detected by Input Contact Isolator 7 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal
87. IA 5 1991 LNOYS 51 Installation Drawings Figure 39 Installation drawing seismic floor stand 400 600A 9 60091254 ACIS STIIVL3GO 20091484 L009LZSd 0009 264 S MA 33S ul ZE LON MAIA HOO 4 Q3SIVH 52 wings Installation Dra floor stand 800 1000A Ing seismic draw Figure 40 Installation 0 000 1654 ios MIIA OIHL3WOSI sre LHOISH XVIN LHOISH LH9I3H INVIS HOO 14 dO JI8v L LHOI3H SHT 5941 1416 GL OLW Sg1 1494 91 8N 597 15 07 LYVHO 58114 S OL ANDYOL H3HSVM 115 ANY H3HSVM M901 11148 M389S dVO WWOPXSZ L ZLW ANYLS 0 OL LAMOVYE HOVLLV 58114 16 OL SNOYOL H3HSVM 1V14 ANY H3HSVM 3201 11148 MIYOS WWOEXOS L 0 2515 OL 19 HOVLLV 20021264 V 130 915 SLAMOVYE LNOYS H3MO1 IHL TIVISNI LW ONISN 20041254 OM Z 9I3 LANOVYE GNVLS YOOTS HONOYHL Z L LSV31 LV QN31X3 OL Sav 1340 v8 2515 NO SLOTS JHL OLNI 114 1330 V8 2515 NO 6891 1 1 OS GNVLS JHL 1 2516 JHL TION 004 33d aariadns 01135 SHOHONV NOISNVdX3 S Q3 X ONISN 1344 GNVLS HOO 14 H YLLY HOO TH JHL ONIHONOL 38 LSNW 1334 TIY
88. In the event of an open SCR the switch automatically triggers an alarm and transfers the load to the other source All open and shorted SCR alarm conditions are latched and require the system to be repaired and reset to restore normal operation On Off Sequence The Liebert STS2 contains no master On Off push button control When connected to the input sources the unit s logic power comes on automatically The touch screen display if so equipped is active as long as at least one input source is energized and the Control Power Disconnect located inside the static switch is on 61 Theory of Operation 9 2 9 2 1 Detailed Component Description Controls Operator Interface The Liebert STS2 Color Graphical Display unit contains a touch screen color LCD to provide the operator interface to control and configure the operation of the unit and quickly diagnose problems A password and an optional keylock if installed are provided for security The LED Display unit includes push buttons for source transfer alarm reset and audible alarm silence Hardware The Liebert STS2 operator interface in the Color Graphical Display unit is designed to provide all of the information required to configure and monitor the unit s operation The control logic performs automatic operations with minimal operator interface Each Liebert STS2 unit is equipped with either a color LCD touch screen or a panel of LEDs and push buttons The
89. LED is lit check the alarm messages on a PC terminal Correct alarm conditions before attempting a source transfer NOTE When the remote source selection option Remote Control is activated a change of state Remote Preferred Source Selection may initiate a transfer if the appropriate contacts are closed 2 Verify that the LEDs are lit for both sources indicating power is present and within acceptable tolerances 3 Verify that the LEDs for the SCRs Liebert STS1 and Liebert STS2 are lit 4 Verify that the input breakers CB1 and CB2 are closed Verify that their respective LEDs lit 5 Push the Preferred Source button for the desired source See Table 15 on page 104 The Preferred Source LED PREFx LED turns on for that source When conditions are correct the switch transfers the load to the alternate source by selecting the alternate source as the preferred source This source is now monitored as the preferred source throughout the various configurations set up through the PC terminal 6 Check the LEDs to verify that the correct source is designated as the preferred source and that the input source changes to the desired source and the output OUT LED remains lit 107 Operating the Liebert STS2 LED Display 14 2 3 Maintenance Bypass The Liebert STS2 is equipped with two key interlocked bypass breakers CB4 and to allow manual bypass of the switch electronics for either input source in the event of sw
90. Liebert STS2 electronics to facilitate safe repair without de energizing the load using a make before break switching sequence However the unit can be bypassed using a make before break switching sequence only to the same source to which that the switch is connected as indicated by the highlighted static transfer switch box on the Mimic screen In the event of source or switch failure the unit should be bypassed only to the current input source For convenience instructions for the bypass procedure can be displayed on the touch screen by selecting the BYP PROC option from the menu bar The Mimic is used to verify the status of the unit during the bypass procedures In the unlikely event that the Color Graphical Display is not available open the front door and look through the slots in the control door If you can see green LEDs on the gate driver board through that slot then the unit is connected to the source referenced on the label below that slot See Figure 47 67 Operating Instructions for the Touch Screen Interface Figure 47 Gate board viewing slot locations Touch Screen di b Viewing Slot for M the Source 1 Viewing Slot for Gate Drive Board the Source 2 Gate Drive Board 1 P GREEN LEDS ON THE GATE DRIVER BOARD GREEN LEDS ON THE GATE DRIVER BOARD ARE VIEWABLE THROUGH THIS SLOT INDICATE THAT THE STS IS ON SOURCE 2 ARE
91. N on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 120 Event Message Help Text S1 VOLT SENSE FAIL Source 1 Voltage Sense Module Failed The module contained on the snubber monitoring the input voltage from Source 1 has failed Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 2 VOLT SENSE FAIL Source 2 Voltage Sense Module Failed The module contained on the snubber monitoring the input voltage from Source 2 has failed Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebe
92. ONILNNOW INV LS HOO 1H HO 9NIHOHONV 331N39 OIINSI3S TIv L3d 335 S310H ONILNNOW 1 42 82 3218 AIGVSOdSIC 31114 OL N3dO 3LIHM 440 SNFIINVH TVOLLH3A dO 93 SL NIHLIM L3NISVO d33y NI1GNVH L3EDISOH 1 ATIVENLONYLS SI WOLLOS LINN 591 008 LHOISM HOLIAAS 0001 60 S YH NLA OGELL HOLIMS V008 HOS XVIA HH MM 6079 HH NLE 0826 114100 LV3H SS300V 2 5 NOILVTIVLSNI m LNOYS NI SI WAWINIW WWP 16 9 dO LSnVHX3 LINN 3A08V 3ONVHV33O NIW 111199 81 dus SYSLAWITIN SIHONI NI SNOISNSNIG TV L n SALON HOLIMS 1nOMOO1 10 O c 23 wings Installation Dra 100 250 amp Liebert STS2 ing hor draw Ismic anc Figure 11 Se ed 80111454 MOIHL HONI S XOUddV 14416 010 38V SLAMOVed ASVE LANIGVO LNOYS SL3M0VS8 LNOYS ANY 8 qasinoas SI TYM aqls INOS3 3ONV1SId WOWINIW HONI 0 S LN3S3Sd STIVM JAIS dl Z 67914 WN 98792 1 SEZ OL 3003101 Gadd Ns SLAMOVEE LANIGVO LNOYS OL SLAMOVYE Y00714 LNOYS TI
93. OO 318V9 ANY WHLNAN HOd Gal dd Ns 51 LIM 9 83403 TVOlH1O313 1 ANY LAN Wad IWNOLLVN 3ONVQSOOOY NI 38 OL SI ONIMIM S 1 2 1 G3aNaWiNOO3S LON 38v 53199 WANINN TW Qv 19 H3ddOO ANY WANINNT MIIA LNOMJ S318vO LNdNIWOYS LIndNOO 31vsvd3s v NI Nn 5 S3 18v9 LNdLNO LIndNOO 31VsVd3s NI 508 1 508 ANNOYS NAY 38 LSAW 3MOd ANY TOHLNOO LAN Wad vid 16 AZIS 1 2 1 en LINS OL HONNd SAOWSY SALW 1d SS399V 3 THVAOWSH en 318VTIVAV AH1N3 318VO9 WOLLOG NV dOL Z 9 161 5 Su313IITIIN S3HONI NI SNOISNAWIG TIY 0 09 SL l 06 6 71 066 SALON 4222 29 wings Installation Dra 400 600 amp Liebert STS2 with dual output breakers Figure 17 Electrical field connections drawing Q3AON3 S T3NVd LNOYS HLIM MAIA 80 LOFZLZSd MJA Sais _ V V NOILOAS ANIT ANO 1 WALSAS 200 104100 WALSAS 2 sgo 269 vego yao 5 Sgo olo N Piolo VL VL cdo 92 3OouHnos JOYNOS cdo Sn8 IWYLNAN 1ndNI ae 8 L 05 LOdNI L SOYNOS ui N 89 SAT HONI 820 VO SI SLAN Wad 61 2 LNAWAYINOSY SNOYOL IHL
94. P PROC BYP PROC HELP Loco Menu Options 85 Liebert 5752 Touch Screen Display 13 2 Menu Overview The touch screen menu provides access to configuration settings and more device information The CONFIG Configuration and LOGS menus provide multiple choices through pop up menus The SOURCE XFER menu selection allows you to select the preferred source The other menu choices provide information in the display panel The menu choices are discussed later in this manual All programmable functions are preset at the factory to default settings These settings enable the unit to be brought up without the need to enter all selectable parameters The menus allow the settings to be customized Figure 49 Menus CONFIG LOGS SOURCE XFERS STARTUP PROC BYP PROC HELP LOGO Config menu Logs System Rating Event Log Event Masks History Log 1 User Settings L History Log 2 System Settings omm Options ystem Options ystem ID NOTE Some menu choices display a keyboard or keypad on the touch screen Enter data on the touch screen Click OK to save the data that you have entered Use the back arrow button lt to delete unwanted characters This button functions like a backspace key on a keyboard Figure 50 Keyboard and keypad displays KEYBOARD ENTRY TOOL Backspace Manual Xfer Max Phase Angle Deg MIN MAX KEYBOARD ENTRY TOOL Primary Line E
95. S2 Touch Screen Display 13 8 4 A keyboard is displayed to allow you to enter the name of the alarm 3 Enter the name of the alarm set for that input For example a fan problem could be indicated by naming the button FAN 4 Select OK on the keyboard to keep your label 5 Select DELAY A keypad is displayed prompting you for a delay time in seconds for a condition to exist before the alarm is triggered 6 Enter the delay value The range for the values are from 0 zero to 99 9 seconds 7 Select OK on the keypad to keep your setting The value you entered is displayed in the field adjacent to the corresponding input contact 8 Repeat steps 2 to 7 for each input contact 9 Select SAVE after you have configured all input contacts Be sure to select Save even if you have accessed this dialog only to change a setting 10 Enter the settings in Input Contact Isolator Settings Record on page 142 This information is not saved if control power is removed 11 Select OK in the Comm Options dialog box to activate the settings Configuring the Programmable Relay Board Settings The Liebert STS2 can contain up to two Programmable Relay Boards PRB that can trigger an external device when an event occurs in the Liebert STS2 For example if Source 1 fails an external light flashes See 6 1 Programmable Relay Board for more information on the PRBs The Programmable Relay Board dialog box with two options STANDARD SET and USER DEFIN
96. STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 4 Input Contact Isolator 4 Occurrence of the indicated external event has been detected by Input Contact Isolator 4 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 5 Input Contact Isolator 5 Occurrence of the indicated external event has been detected by Input Contact Isolator 5 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type S
97. STS2 inputs The touch screen control panel should become active and operate properly when at least one of the inputs is energized is closed 3 Verify that nominal input voltages are applied to both inputs Source 1 and Source 2 The input voltages selected preferred source breaker and switch status and alarms are indicated on the Mimic screen Figure 45 Liebert STS2 touch screen display Mimic Sources T s Event controls SOURCE 2 B C C A 195V 195V 195 Static Transfer Switch SILENCE O Liebert KEEPING BUSINESS IN BUSINESS A EMERSON Network Power Event display y CONFIG LOGS SOURCE XFERS STARTUP PROC BYP PROC HELP LOGO 4 Close CB1 5 Verify that Source 1 voltages are nominal and CB1 breaker status is correctly indicated on the Monitor Mimic screen 6 Close CB2 7 Verify that Source 2 voltages are nominal and CB2 breaker status is correctly indicated on the Mimic screen 8 Verify that boxes for the preferred source and corresponding static transfer switch are highlighted on the Mimic screen indicating which side of the Liebert STS2 is on 9 Close Output Breaker and in redundant output configurations 10 Verify CB3 the Output box and the Load box are highlighted indicating that is closed and the Output and Load are energized For redundant output switch units descriptions
98. The default transfer voltage limits comply with the limits of the IEEE Std 446 1995 computer voltage tolerance envelope If the unit is so configured the load is retransferred automatically to the preferred source after the preferred source returns to within the acceptable voltage and frequency limits for at least the defined retransfer time delay and is in phase with the alternate source You can enable and disable automatic retransfer to the preferred source through a user configuration setting Automatic Retransfer Inhibited If the system makes five transfers from the preferred source to the alternate source in a five minute period automatic retransfers back to the preferred source is disabled To clear this alarm condition you must assign the alternate source as the preferred source Also the UV detection thresholds may need adjustment See Source Set Points on page 90 for instructions on setting the UV detection 60 Theory of Operation 9 1 5 9 1 7 This alarm also is cleared if the unit transfers to the preferred source due to an alternate source AC volt failure 1 6 an emergency transfer Emergency Transfer To ensure that power remains connected to the load the Liebert STS2 automatically performs an emergency transfer from one input source to the other when an outage occurs on the existing source The automatic transfer takes place if the other source s voltage is within acceptable limits and regardless of
99. V88 H3ddf HLIM 2515 dO MIA ACIS LHOTH 2914 l3MO0VMH8 2515 lt uvas 9 51130 OH 0091 2Sd ONY Z00912Sd 0009 284 S MA 33S ALON INOMHJ l330VMH8 515 LNOSA INOMJ 13 9 ONILNNOW 83MO 1 HLIM GNV1S dO M3IA dOL 1NO 4 H3HSVM 1973 201 11148 G L ZLW MANOS s3Ov1d lt l330VMH8 ZSLS H3MO T N SLAMOVYE HLIM 2515 dO M3IA WOLLOG k Old l30Vu8 515 H3HSVM ZLIN H3HSVM 9201 1185 WIAOPXSZ L Z LIN MIYOS dvO s3ovid Z 1 1 33S ZLN SH3HSVM 1714 ZLA H3HSVM 201 11148 INWOPXSZ V Z HA MANOS s3ovid 515 LNOSJ 50 Installation Drawings Figure 38 Installation drawing seismic floor stand 400 600A 0 ed 20091 Sd SDvldz VIVLAd LayoVad LNOz3d H3HSVM 1 14 ZLA H3HSVM 1148 ININOPXSZ L ZLIN MIYOS s3ov 1d 2 OLN H3HSVM OLN H3HSVM 4201 11148 WINOEXS L 0LIN A389S s3ov 1d 2 M3IA 5 c 9l3 51015 L3MOVH8 OLNI aql 1S 01 59 1 L3340V88 H3ddfl 515 1399 515 H3ddfl HV3H S TIVL3G 60091264 ANY 10091254 0009 254 S MA 33S ALON M3IA 3GIS Sls M3
100. VIEWABLE THROUGH THIS SLOT N INDICATE THAT THE N STS IS ON SOURCE 1 N N GREEN LEDS ON THE N GATE DRIVER BOARD N ARE VIEWABLE THROUGH THIS SLOT INDICATE THAT THE STS IS ON SOURCE 1 If the Color Graphical Display is not available you can still use the following bypass procedures ignore the steps to check the display and check the LEDs If your system contains the LED display see 14 2 3 Maintenance Bypass 68 Operating Instructions for the Touch Screen Interface 10 4 1 Bypass Procedures for Source 1 To bypass the switch for Source 1 NOTE To bypass the Source 1 static transfer switch when Source 2 is presently active you must first 1 SO OS ek Ne transfer to Source 1 See Manual Transfer Preferred Source Selection 66 Verify that Source 1 is supplying power via the Mimic Ifthe Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 47 Remove the interlock key from CB6 and place it in the interlock Open the alternate source input breaker CB2 Rotate and remove the CB2 interlock key Insert the key in the CB4 bypass breaker interlock Rotate the interlock keys in the CB4 bypass breaker interlock to retract the interlock Close bypass breaker CB4 Verify the breaker status on the Mimic screen Open source input breaker Rotate the interlock key and
101. VLSNISY SS390V Y31134 GSAOWSY 38 NVO YOO LINN 514 HOO T3 TIVLSNI THY ST3340V8H8 SAOWSY ANY SNOILV9O71 MeV 9 ATINA LON OG 108 L3390V88 ASVE LANIEVO 01 51 3 0 HOO TH LNOYS HOV LLV 27914 LAMOVYA HONOMHLL LSV311V QN31X3 OL SAVL 13 HOO 14 SLOTS S8V1 NOILISOd OLNI L3NI8VO S q34n9lid c 1319 HOO 14 LNOHJ 5 LON JYYMAYYH HOO 4 3N Y00714 130v HOO 13 HV3H 5 LON 3HVMQHVH HOO 1H 8 2 XOHddV l3M0VH8 3SVd LNO43 LANIEVO 40 1NOHJ TIVM 1319 asvg LANIGVO HV3H qasnoas SI L349VH8 Y3L4Y NSLHOIL LAN SNI3M0O1 1108 9NITJA31N3SOOT 310N WN 214 HONI 8 159 OL 3HVMQMNVH G3rTadns ISN ONIOVA 39NV 13 LN38 HLIM LINN dO 3GISH3QON NO 3 10H SNILSIX3 OL 9I3 LAMOVY 3SV8 L3NISVO 1 4 TIVISNI f Yqasnoas SI L3340 VH8 1314V N31H9IL LNN 9ND1901 L1O8 9NIT3A31 N3S001 310N WN Z Lg HONI 81 896 OL 30080 O3riddns ISN TIVM MOVE ONIOVA S8V L HLIM LINN dO 3GISH3QNf NO S3 10H SNILSIX3 OL 9I3 L349V38 3SV8 LANIGVO TIVISNI 31389NOO JHL OLNI cL 40 HLdad WAWININ V OL 1 914 SATOH Til
102. YDOYd Z OML dO 2 NMOHS Suv SNOILdO WOIdAL SALON VLG NOILYOOT NOILdO GSAOWSY YOO LNOYS M3IA LNOUS 1OH LNOO VLA NOILVOO1 NOlLdO 33S 35 Installation Drawings Figure 23 Control wiring for remote source selection option See Note 1 A Source 1 Source 2 Preferred Preferred S1 GND S2 GND rH Remote Source Selection NOTES 1 Customer provided normally open dry contacts Rating 10mA at 30VDC 2 Maximum cable length 500 ft 152m with 16 AWG 300V minimum flexible stranded cable 3 All control wiring by others must be run separate from power wiring Control wiring runs should not be combined in the same conduit 4 Refer to Static Transfer Switch control diagram for location of remote source selection opt 5 All wiring must be in accordance with national and local electrical codes PS213007 Rev 02 36 Installation Drawings Figure 24 Control wiring for the programmable relay board option 9H 0081 Sd 53009 WOlYLOATS 1201 3ONVQOOOV NI 38 LSNW ONIHIM TIY 8 d18vO 1 3 181X314 9MV9 Lit SH3 13IN ZSL L3 009 HLON313718VO WAWIXV Z OvASz I0 vuigoz dWvL SONILVH LOVINOO 9 NOLLdO QHVOS AV I33 dO NOILVOOT NOILOANNOO 1 5 HOLIMS H3JSNVH L OILVLS OL 333 9 LINGNOS 3INVS NI 38 LON 5
103. after the voltage returns to the nominal voltage If the Reset option is not configured for AUTO automatic reset then the reset action must be done manually When the voltage is within acceptable parameters touch the RESET button on the touch screen If you are accessing the unit from a terminal type CA and press RETURN on your keyboard This event was written to the Event Log if so configured 52 OV Source 2 Over Voltage The input voltage from Source 2 exceeded a set percentage of the nominal voltage as set in the OV Setting and OV Detection Delay set points configured under the User Settings An S2 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 52 UF OF Source 2 Under Frequency Over Frequency The frequency for Source 2 is running outside the acceptable operating range as set in the Frequency Trip Point under User Settings An S2 Fail alarm was al
104. age 81 Event Masks This type is a specially formatted and is used to customize the behavior of each fault and alarm in the system See 12 1 4 Setting Event Masks with the Terminal on page 84 for instructions on configuring Event Mask parameters Table 11 shows the various groups the settings contained within and the type of value it requires Table 11 Group settings and values Group Item Description Value Type Value Notes 1 Input Volts PDU Integer Set per system spec Group 1 2 Volts Integer Set per system spec System Ratings 3 Current Integer Set per system spec 4 Frequency Scaled Desired freq x 10 600 60 Hz 1 Language Enumeration Not supported at this time 2 System Model Number String 14 Character max 3 System ID Number String 8 Character max 4 System Tag Number String 8 Character max 5 System Order Number String 8 Character max 6 Options 1 Bitpacked 14 Character max 7 Autodial Primary Line String 20 Character max Group 2 8 Autodial Secondary Line String 20 Character max 9 Autodial Pager Number String 20 Character max 10 Autodial Pager PIN String 10 Character max 11 Modem Init String String 20 Character max 12 Modem Baud Rate Enumeration 0 2400 1 9600 amp 2 19200 bps 13 Modem LGS Check Day Bitpacked 14 Modem LGS Check Time Bitpacked 15 Comms Options 1 Bitpacked See section 12 1 3 16 Comms Options 2 Bitpacked See section 1
105. al type SH and press RETURN on your keyboard to turn off the audible alarm The event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 129 Event Message Help Text LOAD ON ALT SOURCE Liebert STS2 load on the alternate source The static transfer switch is running on the alternate power source Check the Event Log to determine the reason for the transfer from the preferred source Another event has caused the system to transfer to the alternate source The system returns the load to the preferred source either automatically or manually depending on how the system is configured In automatic reset mode the Liebert STS2 automatically retransfers to the preferred source after the causal condition clears In manual reset mode the system remains on the alternate source after the causal event clears until you select RESET from the touchscreen or enter CA Clear Alarms from a service terminal Pressing the RESET button to returns the unit to the preferred source Ensure that the condition that triggered the switch has been rectified before returning to the preferred source Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from
106. al before installing or operating the system Adhere to all operating instructions and warnings on the unit and in this manual Emerson Network Power neither recommends nor knowingly sells this product for use with life support or other FDA designated critical devices The Liebert STS2 is suitable for indoor use only Protect the unit from excessive moisture and install the unit in an area free from flammable liquids gases or corrosive substances The unit is designed to operate from solidly grounded AC power sources only Provide input over current protection in accordance with the unit ratings Wire and ground the unit according to national and local electrical safety codes All wiring should be installed by a qualified electrician Before unit is placed into service for the first time after equipment relocation or after the unit has been de energized for an extended period of time a thorough equipment inspection and supervised startup by qualified service personnel are strongly recommended CAUTION This unit complies with the limits for a Class A digital device pursuant to Part 15 Subpart J of the FCC rules These limits provide reasonable protection against harmful interference in a commercial environment This unit generates uses and radiates radio frequency energy and if not installed and used in accordance with this instruction manual may cause harmful interference to radio communications Operation of this unit in a residen
107. and interconnecting cables provide under floor connection for the two input power feeds Power terminal blocks are provided in each junction box for the connection of the input power conductors and a parity sized ground conductor The junction boxes are NEMA 1 enclosures A main input cable assembly is provided for connection between the unit and the junction box The cable length between the unit and junction box is 10 feet 8 meters long See 5 2 Input Junction Box Installation Optional on page 10 for more information and specifications See Figure 29 for wiring details Seismic Floor Anchors Seismic anchors are available for anchoring the unit to a concrete floor to meet seismic Zone 4 requirements See 4 1 Leveling and Anchoring the Unit to the Floor on page 8 for more information Installation details are provided in Figures 11 through Figure 13 on page 26 Seismic Floor Stand Seismic floor stands in four heights 18 24 30 and 36 457mm 610mm 762mm and 914mm are available for the Liebert STS2 The stands can be fastened to the floor to meet seismic Zone 4 requirements See 4 0 Locating the Liebert STS2 and Figures 32 through 43 for instructions and details for installing seismic floor stands 17 Installation Drawings 7 0 INSTALLATION DRAWINGS Figure 5 Outline drawing 100 250 amp Liebert STS2 30 32 1 85 c Center Center Of Gravity Of Gravity AIR INTAKE AREA DO NOT BLO
108. ans and service contracts For repair or maintenance service outside the 48 contiguous states contact Liebert Services if available in your area For areas not covered by Liebert Services the authorized distributor is responsible for providing qualified factory authorized service Additional telephone numbers and E mail contact information is on the back page of this manual Please have the following information available Part Number Serial Number Date Purchased Date Installed Location Current Rating Frequency Voltage 139 Maintenance PROGRAMMABLE RELAY BOARD SETTINGS RECORD The optional Programmable Relay Board PRB has eight channels to report events to an external device Up to ten 10 events can be programmed to each channel See 6 1 Programmable Relay Board for more information on the PRB If your Liebert STS2 has the PRB option installed list the settings below for future reference If control power is lost in the Liebert STS2 the settings are not saved Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 140 Maintenance Channel 8 Channel 9 Channel 10 PRB Notes 141 Maintenance INPUT CONTACT ISOLATOR SETTINGS RECORD The Input Contact
109. ant text Carefully read the information below each Warning Caution and Note and use professional skills and prudent care when performing the actions described in that text A Warning indicates the presence of a possible serious life threatening condition For example A WARNING The unit is supplied by more than one power source The Unit contains hazardous voltages if any of the input sources is ON even when the unit is in bypass To isolate the unit turn OFF and lock out ALL input power sources Verify that all input power sources are de energized and locked out before making connections inside unit Lethal voltages exist inside the unit during normal operation only qualified service personnel should perform maintenance on the static switch A Caution indicates a condition that could seriously damage the equipment and possibly injure personnel For example A CAUTION Risk of unit damage The input sources to the static switch must be grounded wye sources input sources other than solidly grounded wye sources may cause damage to the switch A Note emphasizes important text If the instructions are not properly followed the equipment could be damaged or may not properly operate For example NOTE Read this entire manual before installing and operating the unit Unpacking and Inspections 2 0 UNPACKING AND INSPECTIONS 2 1 2 2 NOTE Read the entire manual before installing and operating the unit Upon rec
110. apply to and 11 Press the RESET button on the touch screen to reset any previous alarms 12 Verify in the Event Display and the Mimic that there are no active alarms If any active alarms are displayed refer to 11 0 Alarm and Faults for a description of the alarms and possible causes All active alarm conditions should be corrected before proceeding 13 Turn on the load equipment following the load equipment manufacturer s recommendations 65 Operating Instructions for the Touch Screen Interface 10 2 Manual Transfer Preferred Source Selection The Source Transfer option Source Xfers in the touch screen menu allows you to select a preferred source Transfers are only permitted when the voltage and current are within their proper operating range and the sources are synchronized on units without Optimized Transfer Units with the Optimized Transfer option do not require the sources to be synchronized to make a manual transfer The Source Transfer screen indicates the synchronization between the two sources while the voltage and frequency are displayed on the Mimic See Figure 46 Transfer is inhibited if the deviation exceeds the parameter set in the Source Set Points See User Settings on page 89 NOTE Q If one source will be de energized for an extended period hours or days set the unit to bypass mode for the remaining source Without using bypass if a failure occurs in the switch components for remaining so
111. ard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB5 51 BYP CLOSED Circuit Breaker 5 Source 2 Bypass Breaker Closed Circuit breaker 5 is not open The input from Source 2 is bypassing the static transfer switch Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB3 OUTPUT OPEN Circuit Breaker 3 Output breaker Open Circuit breaker 3 is not closed This circuit breaker is assigned to the output load The power flow to the load cannot flow through the static transfer switch Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to
112. arity None Number of Data Bits 8 Number of Stop Bits 1 Hardware Flow Control Off Terminator lt CR gt lt LF gt Handshaking Not supported Structure Full duplex Local Echo Off 15 2 12 Maintenance Bypass The Liebert STS2 is configured to allow the unit s electronics to be bypassed to either input source for maintenance without interruption of power to the load The Liebert STS2 is furnished with key interlocked maintenance bypass breakers to configure the bypass Liebert STS2 units have all electronics isolated from the input output and bypass connections to allow safe servicing of any components without access to hazardous voltages when the unit is in maintenance bypass See 10 4 Maintenance Bypass on page 67 for instructions using the Color LCD Graphical Display unit and 14 2 3 Maintenance Bypass on page 108 for instructions using the LED units 15 2 13 Fuseless Design All Liebert STS2 units are fuseless and are UL rated for use with upstream circuit breakers only 15 2 14 Options The following options are available for the Liebert STS2 Programmable Relay Board Remote Source Selection Optimized Transfer Distribution Cabinet With I Line Panelboard Input Contact Isolator Board Transfer Inhibit Key Lockout Switch Redundant Output Breaker Comms Board w Liebert SiteScan and Modem Interface Liebert IntelliSlot SNMP Web Modbus 485 Card Seismic Floor Anchors LED Display Seismic Floor Stand 18 24 30 and 36
113. arm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard PWR SPLY 51 AC FAIL Power Supply Source 1 AC Failed The AC input power to the power supplies from Source 1 has failed The power supplies are now operating on AC power from Source 2 The AC input from Source 1 is still good Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 119 Event Message Help Text PWR SPLY S2 AC FAIL Power Supply Source 2 AC Failed The AC input power to the power supplies from Source 2 has failed The power supplies are now operating on AC power from Source 1 The AC input from Source 2 is still good Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so
114. arm silence button The key lockout switch is mounted on the front of the unit See Figures 8 to 10 for the key lockout switch location on each unit To disable the buttons turn the key to the top of the switch toward the closed padlock icon To enable all of the buttons except the alarm silence turn the key to the horizontal position toward the open padlock icon Figure 63 Key lockout switch ____ Changes disabled B 21 1 Changes enabled 105 Operating the Liebert STS2 LED Display 14 2 14 2 1 Operations This section discusses the system startup shutdown and bypass procedures for the LED based Liebert STS2 If your unit has an LCD touch screen see10 0 Operating Instructions for the Touch Screen Interface for instructions these procedures Normal System Startup NOTE If your Liebert STS2 is connected to a PDU with a Wye configuration enable the Wye Output Transformer before starting the system This configuration can be done from a PC terminal Refer to 12 1 Using the RS 232 Port for instructions This section provides instructions to start up the Liebert STS2 The LEDs provide the basic information required to ensure proper operation To monitor metering data use a PC terminal 1 Ensure that all Liebert STS2 breakers CB1 CB2 if supplied CB3 CB4 and CB5 are in the OFF open position a Ensure that the key interlocks for CB1 and CB2 have their bolts retrac
115. assword See Using the Password on page 87 for more information on configuring and using the password 100 Liebert STS2 Touch Screen Display 13 11 Logs Two types of logs are kept by the Liebert STS2 Event Log and History Log 13 11 1Event Log The Event Log tracks the alarms and faults of the Liebert STS2 See 11 0 Alarm and Faults for more information on these events and see 11 2 1 Event Log for more information on the Event Log and definitions of the fields displayed in the Event Log screen Figure 60 Event log To use the Event Log 1 2 3 4 Select LOGS from the menu bar to open the Logs menu Select EVENT LOG from the menu Use the UP and DOWN buttons to scroll through the event list Select OK to close the Event Log The data remains in the log 13 11 2History Log Two History Logs are available to track major alarms If so configured an alarm freezes the history buffer When the History Status buffer is frozen a History Log is created that can be accessed from the HISTORY LOG choices in the LOGS menu See 11 2 2 History Log for more information on the History Logs and definitions of the fields displayed in the History Log screen Figure 61 History log ovem se em 101 Liebert 5752 Touch Screen Display 13 12 13 13 13 14 13 15 13 16 13 17 To use the History Log 1 Select LOGS from the menu bar
116. aution has been taken to ensure the accuracy and completeness of this literature Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions 2008 Liebert Corporation All rights reserved throughout the world Specifications subject to change without notice Liebert is a registered trademark of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners 51 20620 REV8 05 11 Technical Support Service Web Site www liebert com Monitoring liebert monitoring emerson com 800 222 5877 Outside North America 00800 1155 4499 Single Phase UPS amp Server Cabinets liebert upstech emerson com 800 222 5877 Outside North America 00800 1155 4499 Three Phase UPS amp Power Systems 800 543 2378 Outside North America 614 841 6598 Environmental Systems 800 543 2778 Outside the United States 614 888 0246 Locations United States 1050 Dearborn Drive P O Box 29186 Columbus OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco PD Italy 39 049 9719 111 Fax 39 049 5841 257 Asia 29 F The Orient Square Building F Ortigas Jr Road Ortigas Center Pasig City 1605 Philippines 63 2 687 6615 Fax 63 2 730 9572 Emerson Network Power The global leader in enabling Business Critical Continuity Embedded Co
117. b N m in Ib N m 10 32 25 3 35 4 1 4 20 53 6 80 9 0 5 16 18 107 12 180 20 4 3 8 16 192 22 240 27 1 1 2 13 428 48 480 54 3 Testing the Liebert STS2 The Liebert STS2 includes comprehensive system alarms and fault detection to identify operational problems To increase the degree of confidence of proper system operation periodic transfer tests can be easily performed For instructions for changing the preferred source and switching sources For a Color Graphical Display unit see 10 2 Manual Transfer Preferred Source Selection on page 66 For an LED equipped unit see 14 2 2 Manual Transfer Preferred Source Selection on page 107 Changing the Air Filter A standard furnace filter is installed behind the air intake in the front door The air intake allows air to circulate to cool the unit Replace the filter when it becomes dirty and impedes air flow The frequency of changing or cleaning the filter depends on the location in which the unit is located The size of the filter is 1 in x 25 in x 25 in 2 54 cm x 63 5 cm x 63 5 cm 138 Maintenance SUPPORT INFORMATION To contact Emerson Network Power Liebert Services for information or repair service in the United States call 1 800 LIEBERT 1 800 543 2378 Liebert Services is available to assure fast repair of your unit with minimal downtime Liebert Services offers a complete range of startup services repair services preventive maintenance pl
118. be rolled or placed using a lift on to the floor stand After final positioning of the unit adjust the leveling feet located in each corner of the frame base to level and stabilize the unit The floor stand can also be used to ensure the unit s stability in the event of seismic activity by anchoring the Liebert STS2 to the floor stand and to the concrete floor The seismic floor stand is shipped separately from the unit when ordered See Figures 32 through 43 for instructions and details for installing seismic floor stand Power Control Wiring 5 0 POWER AND CONTROL WIRING All power and control wiring should be installed by a qualified electrician All power and control wiring must comply with the NEC and applicable local codes Unless otherwise labeled use the recommended tightening torque as shown in Table 24 Torque tightening The busbars are accessible through the front of the Liebert STS2 and designed to allow one handed tightening Cables can be installed through the top or bottom of the unit through removable conduits plates See Figures 5 through 10 for wiring entrance locations Input wiring also can be installed under a raised floor to optional input junction boxes and cables when used 5 1 Input And Output Power Connections If the unit is furnished with input junction boxes the input power connections are made to the input power terminals located in the junction boxes Input power cables furnished with the
119. ble alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 137 Maintenance 17 0 MAINTENANCE 17 1 17 2 17 3 A WARNING Only qualified service personnel should perform maintenance on the static switch Lethal voltages exist inside the unit during normal operation The unit is supplied by multiple AC power sources Disconnect and lock out all power sources before working inside unit Minimal periodic maintenance of the Liebert STS2 is required As with all electrical distribution components the system should be regularly inspected for electrical connection integrity signs of excessive temperatures dirt accumulation and proper system operation Proper Tightening of Nuts and Bolts The recommended tightening torque for all nuts and bolts is as shown below unless otherwise labeled All power connections are designed to remain at proper torque throughout the lifetime of the unit Table 24 Torque tightening Grade 5 Imperial Electrical Connections Grade 8 8 Metric With Belleville Washers Bolt Shaft Size in I
120. c9 Mza AN 99 W Za GZ layovua AW 9 15084 TYM Adis ONIOVdS HOS 3LON 33s HV3H TIVM MOVE LP 8126 11269 ONIOWdS 4 3LON 335 25 wings Installation Dra 01340938 1 I3yOVug Y W3lJV N3IH9H LAN 9 201 1108 1 N3S001 ILON WN Z Lp HONFET OL 300801 03114408 ISN 908154 INO ONIOWS SONY Td LNIG HLIM LINN dO 3qlSH3QNQ NO S310H MOIHL HONI SZ XOWddv 13318 010 34V 51140948 5 8 NILSIXI OL 691 13y0Vug 3598 I3N8VO TIVLSNI 1 4 913 2 0014 1 0 4 ONY YYY 9 130238 SI I3yOVug 1 SI TYM 308 N3IHOIL LAN 9ND201 1108 NH3A31 N3S001 ILON WN Z p 41606 OL 300801 SYVMCYVH 03114408 ISN TIVM MOVE ONIOVA SYL LINN dO 015830 5410 ONILSIXS OL 098 14 3sv8 13 8 0 TIVLSNI M3Hll3 WOW3 1810 WAWININ HONI OS 14385344 38V STWM 308411 467915 WN 692 N 91 SEZ OL 300801 ANY SYVMGYVH 03114408 HUM SI3wOVHg 1 0 4 OL 1 3001 INOS TIVISNI3S SS300v X31139 4 GSAOWSY 38 NYO YOO LINN 5 3 2 OO TIVLSNI TIM 51 3 0 8 SAOWSY ANY SNOLLVOOTSIOH 9 31389NOO JHL OLNI L 40 HLd3Q WAWININ V OL L SATOH TING NOLLVOOT MeV TYM NONI 482 1SV3l LY X00714 NO Sl3yM0V
121. can select the type of switch used for this remote control Connections are made to four of the connections using Form A dry contacts The contacts are numbered left to right Table 5 Remote source selection terminal block Contact Connection 1 Source 1 2 Isolated ground 3 Source 2 4 Isolated Ground 5 DO NOT USE 6 DO NOT USE See 10 3 Enabling Remote Source Selection for instructions on enabling the Remote Source Selection option Power Supply The Liebert STS2 is supplied with redundant power supplies that are designed to operate from a voltage range of 200V to 600V The unit is set at the factory to match the nameplate voltage Field adjustments are not necessary If the unit needs to operate at a voltage other than what is listed on the nameplate contact Liebert Services or your local Emerson representative Table 6 provides transformer tap information Table 6 Terminal block 1 and terminal block 2 wire connections Connect t Connect F1 F2 F3 4 Jumper Voltage TB1 XX TB1 YY TB2 XX TB2 YY Between 200 1 9 1 9 1 7 208 1 10 1 10 1 7 220 2 12 2 12 6 8 240 1 11 1 11 1 7 380 1 8 1 8 2 7 400 1 9 1 9 3 7 415 1 10 1 10 4 7 480 1 11 1 11 5 7 600 1 12 1 12 6 7 A CAUTION Using Table 6 ensure that the wiring for the control transformers matches the input voltage for the unit Improper wiring could result in blown fuses 13 Options
122. cation Interfaces 12 1 4 Setting Event Masks with the Terminal The event masks can be customized via a terminal The command SPT4 lt ENTER gt displays all faults and alarms along with their associated event masks A plus sign means that particular event mask is enabled while a minus sign means that mask is disabled Refer to 11 1 Event Mask on page 71 for more information on event masks and their associated flags Unlike the System and User Settings mask values are set by designated letters not hex values However as with other RS 232 interface settings four parameters are passed See 12 1 2 Configuring the Liebert STS2 via the Terminal on page 78 for more details about the parameters The syntax for configuring event masks is SPT 4 ID D 4L S E A SPT is the terminal command used to configure setpoints 4 setting group parameter for event masks under System Settings ID event ID The ID is the item parameter for this command The ID numbers for each event are listed with the events in Table 8 on page 74 D L S E A the event masks Dial Latch Summary Event log and Audible The masks are the value parameter for the command Each mask type must be preceded by a plus sign to enable it or a minus sign to disable it NOTE NO spaces are placed between each mask listed above Only the mask that is passed enabled is applied when the event occurs Note that t
123. ccess for installation and maintenance Back or side access is not required Adequate space is required above the unit for conduit if configured as such and cooling air flow This section provides specific information for these considerations The unit is designed with top and bottom cable terminations to allow maximum flexibility in its installation If bottom cable entry is used sufficient cable bending space must be provided by a raised floor or a floor stand For dimensions of each unit see Figures 5 6 and 7 in section 7 0 Installation Drawings on page 18 If your unit is equipped with an optional key lockout switch see Figures 8 through 10 for location of that switch Recommended Minimum Service Clearances The recommended service clearances are at the front of the unit The minimum service clearance required by the National Electrical Code NEC Article 110 26 is 36 in 91 cm for units with voltages up to 150V to ground and 42 in 107 cm for units with voltages over 150V to ground Clearance of at least 18 in 46 cm is required above the unit for cooling air flow Heat Output The unit produces minimal heat during normal operation Table 1 Heat output Heat Output Switch Size BTU Hr kW 100 amp 2 711 0 80 250 amp 4 680 1 37 400 amp 6 972 2 04 600 amp 10 520 3 08 800 amp 13 777 4 03 1000 amp 17 390 5 09 Operating Environment The unit is designed to be installed indoors under the fo
124. ce 2 dropped below a set percentage of the nominal voltage as set in the Fast UV setpoint under the User Settings An S2 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 126 Event Message Help Text 52 UV RMS Source 2 Under Voltage slow detection The input voltage from Source 2 remained below a set percentage of the nominal voltage for a designated period as set in the Slow UV Setting and Slow UV Detection Delay set points configured under the User Settings An S2 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The alarm is latched and must be reset
125. ck Remove the proper key from the 5 interlock and insert it in the CB1 breaker interlock Rotate the key to retract the CB1 breaker interlock Close source input breaker Verify the STS SOURCE 1 box and CB1 breaker status on the Mimic screen Ifthe Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 47 epo N y QU o9 B9 ks m WwW N Normal System Shutdown The Liebert STS2 can be shut down from either the static switch mode or the bypass mode Shutdown in Static Transfer Switch Mode When the Liebert STS2 is operating on static transfer switch mode not maintenance bypass mode 1 Turn off the load equipment per manufacturer s recommendations 2 Open to turn off the static switch output Open if the static transfer switch has a redundant output configuration 3 Open the input switches CB1 and CB2 4 To completely de energize the unit turn OFF power to both inputs to the Liebert STS2 Shutdown in Maintenance Bypass Mode When the Liebert STS2 is operating on bypass 1 Turn off the load equipment manufacturer s recommendations 2 Open the bypass switch CB4 or 5 to turn off the static transfer switch output 3 completely de energize the unit turn OFF the power to both inputs to the Liebert STS2 70 Alarm and Faults 11 0 ALARM AND FAULTS
126. ct BYP PROC The instructions are provided in the display panel Bypass procedures are also discussed in 10 4 Maintenance Bypass for Color Graphical display units and 14 2 3 Maintenance Bypass for LED Display units Help You can select an event in the Event Display to display more information about that event in the Display Panel This same help is also available in 16 0 Event Message Help Text Logo The Logo menu choice shows the Emerson logo the Display panel Cleaning the LCD Touch Screen If the touch screen requires cleaning use a pre moistened towelette designed for cleaning CRTs or dampen a soft non abrasive cloth with a very mild cleaning solution Do not spray the cleaner directly onto the touch screen as drips may run down into the screen and damage the equipment Close all menus and dialog boxes before cleaning the touch screen 102 Operating the Liebert STS2 LED Display 14 0 OPERATING THE LIEBERT STS2 LED DISPLAY 14 1 14 1 1 Certain models of the Liebert STS2 do not include the LCD Color Graphical Display with the touch screen interface This display is replaced by an LED front panel to allow you to monitor the unit and alert you when a problem occurs The LED panel can be replaced with the Color Graphical Display if desired Instructions for using the LCD are in 13 0 Liebert STS2 Touch Screen Display You can use a PC running terminal emulation software connected to the RS 232
127. ct OK to save the setting Select MANUAL MAX XFER PHASE ANGLE The setting is now displayed in the adjacent field in the User Settings dialog box 91 Liebert 5752 Touch Screen Display 8 10 11 12 13 14 Select FREQUENCY TRIP POINT A keypad is displayed This choice verifies that the source is running at the proper frequency This choice sets the frequency deviation in the frequency that triggers the frequency trip point alarm The frequency deviation setting is the allowable frequency variation from nominal 60 0 or 50 0 Hz before activating the frequency deviation alarm The frequency setting applies to both input sources a Configure this setting with a range of 0 1 3 0 Hz The default setting is 3 and the resolution is 0 1 b Select OK to save the setting Select RETRANSFER DELAY A keypad is displayed With the secondary source being used this setting sets the length of time the switch waits until attempting to transfer back to the preferred source a Configure this setting with a range of 1 to 60 seconds The default setting is three 8 seconds and the resolution is 1 second b Select OK to save the setting The setting is now displayed in the adjacent field in the User Settings dialog box Select AUDIO LEVEL A dialog box is displayed with HI and LO settings This choice sets the loudness of the horn or beeper that is sounded for audible alarms a Configure this setting with a range of 1 1
128. d that the input source changes to the desired source The Mimic is updated to indicate the new preferred source The source is now highlighted with blue and that source is labeled as the preferred source If the Transfer Inhibit message is displayed check for alarm messages on the Active Status window Correct alarm conditions before attempting a source transfer NOTE The preferred source may also be changed via the optional Remote Source Selection option thereby initiating a transfer remotely Enabling Remote Source Selection If your system is equipped with the optional Remote Source Selection option it must be enabled If you your system includes the Color Graphical Display 1 Select CONFIG from the menu bar 2 Select SYSTEM SETTINGS from the Configuration menu 3 Select SYSTEM OPTIONS from the System Settings menu 4 Select YES for the REMOTE SOURCE SELECT choice If your system contains the LED display or you are configuring the system from the RS 232 port see 12 1 Using the RS 232 Port on page 76 for instructions on using the that interface Maintenance Bypass The Liebert STS2 is equipped with two key interlocked bypass breakers CB4 and to allow manual bypass of the switch electronics for either input source in the event of switch failure or for maintenance of the switch Refer to the static transfer switch one line diagram Figure 3 While operating on maintenance bypass all voltages are removed from the
129. dible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Events Log is so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 system from a terminal type CA and press RETURN on your keyboard 51 GATE DRIVE FAIL Source 1 Gate Drive Failure The gate drive module for an SCR for Source 1 has failed This module is contained on the right side gate driver board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 system from a terminal type CA and press RETURN on your keyboard 122 Event Message Help Text S2 GATE DRIVE FAIL Source 1 Gate Drive Failure The gate drive module for an SCR for Source 2 has failed This module is contained on the left side gate driver board Press SILENCE
130. e ET SAGE GS efe rente 89 3 747 System Settings Qe EAE ere y ETUR 93 Gomm Options ouk Eu ee recu nU ea P UNES E ats ot 93 13 8 1 Configuring the 4 94 13 8 2 Configuring Pager 95 13 8 3 Configuring the Input Contact Isolator 96 13 8 4 Configuring the Programmable Relay Board 97 13 8 5 Configuring the Liebert IntelliSlot SNMP Web Modbus 485 98 13 8 6 Liebert SiteScan 99 13 8 7 Saving Your Communications 99 System Options Ld Das Awd Me ed AS Saha wes 99 System DA RES ei dE Sa Dari wy Daddy So URN BSE EV 100 MOSS a ira AA a a Sasa AM SS p SL 101 E082 1 15 et bue eH ead e Les 101 TITE History Eg eU pdt eee beo ttt Ce tu eed ce arte es dare tubes 101 Source e e SAG es d adi GRE oues 102 Startup Procedure a as epe esp De Aie e 102 Bypass Procedures ei v Pek ERE eo ake e n RAE 102 Help det erbe te RE s
131. e Static Switch Without Anchoring 8 4 3 Leveling and Anchoring the Static Switch Using Floor Stand 8 5 0 POWER AND CONTROL 9 5 1 Input And Output Power Connections 9 5 2 Input Junction Box Installation Optional 10 5 3 System Grounding s ivive Y ree u S Bera S u u e oc e T aoaaa 12 5 4 Control Wiring Connections 12 5 5 Remote Source Selection 13 5 6 Power Supply eges See p NI as y 13 6 0 OPTIONS PET ee arse Beare hee Pee ea are 14 6 1 Programmable Relay 14 6 2 Optimized Transfer ie aayqa woe ee eid TEE V Gn MEI 14 6 3 Distribution Cabinet With I Line Panelboard 100 600A Units Only 15 6 4 Input Contact Isolator 15 6 5 Comms BOSTO gin datur diete de Wark a 15 6 6 Liebert IntelliSlot SNMP Web Modbus 485 Card 15 6 7 LED Display 4 2544 de rna SEAS A Sy OO ea A ed une s eset 16 6 8 Remote Source Selection uu ace Gay e Ca ate a p E E acc CIRCO 1
132. e available to handle various voltages The input voltage must be three phase AC 8 or 4 wire plus ground The Liebert STS2 is designed to accept an input neutral from each source The neutral is switched in the 4 pole Liebert STS2 only The voltage shall be within 10 of the nominal voltage The output voltage shall be three phase AC 8 or 4 wire plus ground Nominal output voltage shall be same as input voltage The following table provides nominal voltages listed according to frequency Table 16 Input output voltage 60Hz 50 Hz L L L N L L L N 200 115V 200 115V 208 120V 208 120V 220 127V 220 127V 240 139V 240 139V 380 220V 380 220V 400 230V 400 230V 415 240V 415 240V 480 277V 600 346V System Current Ratings These ratings are based upon continuous switch current rating These ratings are for all voltages and frequencies All units are 100 continuous current rated Table 17 System current ratings Current 100 250 400 600 800 1000 111 Specifications 15 1 4 Grounding Refer to 5 3 System Grounding for specifications and instructions regarding grounding 15 1 5 Electrical Requirements Table 18 Electrical requirements Item Requirement Maximum Continuous Current 100 250 400 600 800 1000 amps Load Power Factor Range 0 75 to 1 0 leading or lagging Load Crest Factor Up to 3 5 Source Voltage Distortion Up to 10 THD with notches and
133. e in the Comm Options dialog box to activate the card 13 8 7 Saving Your Communications Configurations To save you communications configuration settings 1 When you have completed the Comm Options configurations ensure you have selected YES for all the settings that you want activated 2 Select SAVE to keep the settings Whenever you make modifications to the any of the Comm Options select SAVE to keep the changes 13 9 System Options Most System Options are configured at the factory However you may need to set two of the choices after the unit is installed Wye Output Transformer and Remote Source Selection Select SYSTEM OPTIONS from the System Settings Menu If needed see 13 7 4 System Settings to access the System Settings menu The System Options dialog box is displayed An option is enabled by selecting YES An option is disabled by selecting NO Figure 59 System options System Options Dual Output Breaker 2 PDU 9 4 Pole Transfer Switch Ed 9 Shunt Trip Ed 2 Wye Output Transformer Remote Source Select Save Cancel Dual Output Breaker This selection is set at the factory The choice is set to YES to enable both output breakers CB3 and when two are installed in the unit If only one output breaker CB3 is installed the setting is set to NO PDU This selection is set at the factory This setting allows the LCD to draw the Mimic accordingly
134. e proper key from the CB4 interlock and insert it in the CB2 breaker interlock 11 Rotate the key to retract the CB2 breaker interlock 12 Close source input breaker CB2 Verify that CB2 LED is on gt p pv or 108 Operating the Liebert STS2 LED Display Bypass Procedures for Source 2 To bypass the switch for Source 2 NOTE To bypass the Source 2 static transfer switch when Source 1 is presently active you must first transfer to Source 2 See Manual Transfer Preferred Source Selection on page 66 1 Verify that Source 2 1s supplying power via the LED display If the LED Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 47 2 Remove the interlock key from CB4 and place it in the CB5 interlock Open the alternate source input breaker Verify that CB1 LED is off Rotate and remove the CB1 interlock key Insert the key in the CB5 bypass breaker interlock Rotate the interlock keys in the CB5 bypass breaker interlock to retract the interlock Close bypass breaker 5 Verify that CB5 LED is on 8 Open source input breaker CB2 Verify that CB2 LED is off 9 Rotate the CB2 interlock key and remove it to lock out the breaker 10 Secure the key according to your site s lockout tagout procedure 11 Open output breakers CB3 and if supplied to remove power and isolate the static switch from the load Verify that CB3 and
135. ed The Input Contact Isolator dialog box allows you to Label the input contact assignments for your setup Set the delay for an external event triggering an alarm Review the 1solator contact assignments once the labels are entered The delay allows you to set the number of seconds which a condition needs to persist to trigger an alarm These input alarms can also be configured to activate a programmable relay output which is discussed in Configuring the Programmable Relay Board Settings on page 97 When the Transfer Inhibit option is supplied connect a N O dry contact customer supplied to Input Contact 8 Pins 15 and 16 When the customer contact closes transfers will be inhibited as long as the contact remains closed Input Contact 8 is factory set so no setup is required The Transfer Inhibit option prevents Input Contact 8 from being used for any other input To configure the Input Contact Isolator relays 1 Select INPUT CONTACT ISOLATOR from the Comm Options menu The Input Contact Isolator dialog box is displayed Figure 57 Input contact isolator dialog box Input Contact Isolator INPUT CONTACT 1 DeLay INPUT CONTACT 2 DELAY 1 0 DELAY oo INPUT CONTACT 4 DELAY oo INPUT CONTACT 5 DELAY oo INPUT CONTACT 6 DeLay oo INPUT CONTACT 7 DELAY foo INPUT CONTACT 8 DELAY foo Save Cancel INPUT CONTACT 3 2 Select INPUT CONTACT 1 96 Liebert ST
136. eet seismic Zone 4 requirements See 4 0 Locating the Liebert STS2 and Figures 11 through 13 for instructions and details for installing seismic anchoring Cooling The Liebert STS2 100 600A units utilize convection air cooling for the enclosure with forced air cooling of the heat sinks The 800 1000A units are fan cooled using low velocity fans to minimize audible noise All fans are redundant so that a single fan failure cannot cause temperatures to increase beyond acceptable limits Air intake is through screened protective openings in the front of the unit A standard furnace filter installed behind the openings By opening the front door the filter can be changed easily without exposing personnel to high voltage The size of the filter is 1 in x 25 in x 25 in 2 54 cm x 63 5 cm x 63 5 cm The air exhaust is through the top of the unit 113 Specifications 15 2 4 15 2 5 15 2 6 15 2 7 15 2 8 Access The Liebert STS2 is designed so all repairs and maintenance can be done from the front or top of the unit All components that may need repair or replacement during routine field maintenance are safely accessed with the units in bypass without removing power from the unit These components include All electronic PCB assemblies Power supply assemblies All fuses All circuit breaker plug in modules Fans SCRs All power connections are designed to maintain proper connection torque over
137. eipt of the Liebert STS2 the installer should perform the following steps to assure a high quality installation A high quality installation begins on the receiving dock The Liebert STS2 and its packaging should be inspected when the unit is delivered If the packaging is not damaged unpack the unit and conduct an internal inspection before beginning the installation process This section discusses the inspecting and unpacking of the Liebert STS2 External Inspections 1 While the Liebert STS2 is still on the truck inspect the equipment and shipping container s for any signs of damage or mishandling Do not attempt to install the system if damage is apparent 2 Upon receipt and before unpacking inspect the shipping crate for damage or mishandling Check the Shock Watch indicator If the indicator is red note on shipper s receipt and check for concealed damage If any damage as a result of shipping is observed file a damage claim with the shipper within 24 hours and contact Emerson Network Power Liebert Services at 1 800 543 2378 or your local Emerson representative to inform them of the damage claim and the condition of the equipment 3 Locate the bag containing the keys for the front access door The bag is attached to the cabinet 4 Compare the contents of the shipment with the bill of lading Report any missing items to the carrier and to Liebert Services immediately 5 Check the nameplate on the cabinets to verify that the m
138. ent Mask See section 12 1 4 143 alarms 80 Communication Interfaces 12 1 3 Setting Bitpacked Options with the Terminal Five sets of options and features settings are available through the terminal to control the system operation Under System Settings for the SPT command these items denote which options are INSTALLED 6 Options 1 14 Comms Options 1 15 Comms Options 2 Under User Settings for the SPT command these items denote which features are ENABLED 17 Critical Option Enabling 18 Non Critical Option Enabling The value parameter settings are in the form of a bit packed word in hexadecimal notation In other words each bit indicates a particular setting for the option or feature The bit assignments for the options and features are as follows Options 1 bitO HasDualOutputBreaker bit1 HasPDU bit2 Has4PoleTransferSwitch bit3 HasShuntTrip bit4 HasWyeOutputXfmr bit HasExternalPrecisionTimeSource bit6 HasSFA bit7 HasRemoteSourceSelect bit8 through bit15 not used set to 0 Comms Options 1 bitO HasIntModem bitl HasExtModem bit2 HasNIC bit3 not used set to 0 bit4 HasSiteScan bit5 not used set to 0 bit6 not used set to 0 bit7 HasOpenCommsDigitalInputBrd bit8 HasOpenCommsDigitalOutputBrd_1 bit9 HasOpenCommsDigitalOutputBrd_2 bit10 HasRemoteStatusPanelBrd_
139. er User Settings An 51 Fail alarm was also issued and source transfer has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard S1 FAIL Source 1 Failure Source 1 has failed due to under voltage UV over voltage OV or running over or under frequency OF UF This alarm is a companion to 51 UV 51 UV RMS 51 OV and 51 OF UF The load of the Liebert STS2 has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event has been written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard S2UV Source 2 Under Voltage fast detection The input voltage from Sour
140. er Settings choice allows you to adjust the user accessible switch settings Access is limited to qualified personnel via system security To access the User Settings dialog box 1 Select CONFIG 2 Select USER SETTINGS from the pop up menu The User Settings dialog box is displayed See Figure 53 The top six buttons access a series of secondary dialog boxes to configure the various settings 89 Liebert 5752 Touch Screen Display Figure 53 User settings dialog box User Settings Source 1 2 Set Points m Manual Xfer Max Phase Angle Deg hs 7 m Frequency Trip Point Hz oo m Retransfer Delay Sec Ei Audio Level 0 Display Brightness EJ io Auto Rexfer Enable YES 9 Auto Restart Enable YES 9 1 Reset gt 8 Save Cancel Source Set Points The Source 1 2 Set Points allows you to configure trigger points for each input source 1 or 2 for the Liebert STS2 via a keypad dialog or HI LO dialog box The source numbers do not designate the source as the preferred or alternate source The numbers simply identify the input source See 10 2 Manual Transfer Preferred Source Selection to set the preferred source The Set Points are based on values in relation to the nominal voltage required for the Liebert STS2 UV refers to under voltage meaning the amount of voltage below the nominal voltage OV refers to over voltage or the amount of voltage over the nominal vol
141. es on eh CUR Ht D Wo Eck en re eb Sce eu ede tad 59 Operator Controls ous EIE vae E RC HG C V 59 THEORY OF OPERATION 52s DEI ere p Ese 60 General Description xa Ve Ue AUGUE tun Ud Is 60 9 1 1 Liebert STS2 Static Transfer Switch 60 9 1 2 Source Transfer nc xs EE a e NIMM S UE RONDA E UR RR 60 9 1 3 Automatic 60 91 4 Emergency Transfer vei 9 Sead We ee ORIS EEG EN SS EM 61 9 1 5 Load Current Transfer 61 9 176 SCR Eail rfe ec ut boe Brees ws c ck ie ded 61 91 7 Sequence csv Rr ERA VE teca IR Ca a DR bea S RR BR Te UC 61 Detailed Component 62 9 2 T Controls oor E er RU e a e ARLE e E RR ie t 62 9 2 2 2 10 sec Do s RARE De ADU DRE RR 63 0228 SOS e uu ma tto OR o e fae e ERU eger e ree a eT dente ase 63 9 274 Teg oie Modules tee dud de Dee dece od 3 63 9 2 5 AudiblesAlaritiies ote Eee ete eee dete dr tee e eee e 63 9 256 hS 2892 Cx Agence Lp d edes te pe a u apay t ING Sut IS EON 63
142. etting under User Settings Transferring to Source 1 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured If this alarm is configured to automatically reset under the set points for User Settings the alarm clears itself when the I Peak condition clears If this alarm is set for manual reset mode the alarm continues to show as active after the current returns to nominal still inhibiting transfers You will need to manually reset the alarm If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard The alarm has triggered a message to be sent to the modem if so configured SOURCES OUT OF SYNC Sources out of synchronization The phase difference between Source 1 and Source 2 has exceeded the deviation as set for MANUAL MAX XFER PHASE ANGLE under User Settings A manual transfer cannot take place while the sources are not synchronized Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a termin
143. ettings Select OK for the applicable Programmable Options Board option in the Comm Options dialog box to activate the settings Configuring the Liebert IntelliSlot SNMP Web Modbus 485 Card An optional Liebert IntelliSlot SNMP Web Modbus 485 card can be installed in the Liebert STS2 to provide Ethernet connectivity via an RJ 45 port Ethernet cabling the responsibility of the customer Category 5 cabling is required See 6 6 Liebert IntelliSlot SNMP Web Modbus 485 Card for more information on the Liebert IntelliSlot SNMP Web Modbus 485 card See the card s user guide SL 52615 for configuration instructions The guide is available at the Liebert Web site ww w liebert com If the optional Liebert IntelliSlot SNMP Web Modbus 485 card is installed in the Liebert STS2 Select YES for the Liebert IntelliSlot SNMP Web Modbus 485 card option in the Comm Options dialog box to activate the card 98 Liebert 5752 Touch Screen Display 13 8 6 Liebert SiteScan Configuration An optional RS 422 port contained in the Comms Board can be installed in the Liebert STS2 to provide communications with Liebert SiteScan Liebert SiteScan is system monitoring software that allows you to utilize a PC to monitor the Liebert STS2 s status and check alarms See 6 5 Comms Board for more information on this board If the Liebert STS2 will be connected to Liebert SiteScan Select YES for the Liebert SiteScan choic
144. ettings on 125 INPUT CONTACT 6 page 96 The alarm is sent to Monitor DSP The LCD logs the 426 INPUT CONTACT 7 alarm with the programmed name Monitor DSP logs it with the 127 INPUT CONTACT 8 generic name which is how it is reported to the SVT query 128 CONFIG MODIFIED A set point configuration has changed 429 PASSWORD CHANGED The password for touch screen access has been modified and AE saved 130 TIME REPROGRAMMED The system s time has been reset and saved 131 DATE REPROGRAMMED The system s date has been reset and saved 132 EVENT LOG CLEARED The event log has been erased 133 HIST LOGS CLEARED Both History Logs have been erased 134 HIST LOGS FULL Both History Logs have been written and no more history logs be written without clearing of the logs 75 Communication Interfaces 12 0 COMMUNICATION INTERFACES 12 1 The Liebert STS2 monitoring system offers several choices for communications The RS 232 terminal port is standard on all units The port is located inside the front door to the left of the touch screen LED front panel mounting as shown in Figure 28 This port is primarily used as an alternate user interface to configure control and diagnose the system especially for systems that do not include the HMI touch screen Commands for the RS 232 port are shown in Table 9 Several other communications options are a
145. faults are indicated in red Alarms An alarm is an event caused by a significant abnormal system condition In the Event Display alarms are indicated in yellow The setpoints for many of the alarms are configurable through the User Settings Many alarms clear themselves when the condition is resolved If an alarm event mask is set to latch the alarm messages remain active until the alarm condition has been corrected and the RESET button is pushed See 11 1 Event Mask for more information on latching When the system is furnished with an external modem and a telephone line is connected to the modem the system can be programmed to automatically dial out upon occurrence of any of certain designated alarms The auto dial feature can be configured for alarms using the Event Mask option in the touch screen See Configuring the Modem on page 94 for instructions on for setting up your modem Event Mask The Liebert STS2 gathers processes and reports faults and alarms collectively referred to below as events The Event Mask dialog box allows you to set the system s response for specific alarms and faults that are generated The following mask types are available for each event Latch If a latch is enabled for the selected event that event remains active even if the originating event condition clears A latched event may only be cleared by pushing the RESET button ALRMRST on the LED units Dial Out If the selected event is trig
146. gered the system automatically calls the specified telephone numbers through a modem For example a page could be sent or an event could be sent to a external terminal via a modem See Communication Interfaces on page 76 for more information on configuring communications options Event Log The selected event is date time stamped and recorded to the Event Log when the event is triggered Audible If the selected event is triggered an audible beeper or horn is sounded by the Liebert STS2 The beeper continues while this event is active or latched or until the SILENCE button NOAUD on the LED units is pushed This button must be pushed with the ALRMRST button on the LED units See Event Masks on page 88 for instructions on setting the mask type via the touch screen display See the 12 1 4 Setting Event Masks with the Terminal on page 84 for instructions on configuration using the RS 232 port 71 Alarm and Faults 11 2 11 2 1 11 2 2 Event and History Logs The system tracks events through the Events Log and tracks significant events through the History Logs These logs allow you to quickly spot trends or diagnose problems that the unit may have had Both logs are written in nonvolatile memory The logs can be accessed from the touch screen menu or the RS 232 port See 13 11 Logs for more instructions on viewing the logs from the touch screen See Table 9 Terminal commands on page 77 for the RS 232 interface co
147. he Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 130 Event Message Help Text 2 52 OPEN Circuit Breaker 2 for Source 2 Open Circuit Breaker 2 is not closed Check that the Circuit Breaker 2 switch is in the desired position Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 4 51 BYP CLOSED Circuit Breaker 4 Source 1 Bypass Breaker Closed Circuit breaker 4 is not open The input from Source 1 is bypassing the static transfer switch Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keybo
148. he Summary and Event Log event masks are only configurable for the LED units To set the event masks for a particular event 1 Enter the command Examples and descriptions are provided below 2 Press ENTER After the new settings are entered the new results for that event ID are displayed Examples of Event Mask Settings latch event 001 51 SCR SHORT use SPT 4 1 L To disable event 128 CONFIG MODIFIED from sounding the horn use SPT 4 100 A To enable event 012 OUT VOLT SENSE FAIL to Dial and go into the Event Log use SPT 4 12 D E To disable all masks for event 120 INPUT CONTACT 1 use SPT 4 120 D L S E A To breakdown this syntax for the last example SPT SVT command 4 group parameter identifying System Setting group under which the Event Mask settings reside 120 item parameter In this command that is the event ID D L S E A value parameter In this case the minus sign disables all masks for the INPUT CONTACT 1 event 84 Liebert 5752 Touch Screen Display 13 0 LIEBERT STS2 TOUCH SCREEN DISPLAY The Liebert STS2 can be configured with a Color Graphical LCD touch screen that allows you to quickly check the status of the unit and identify problems A touch screen LCD is available through the front of the Liebert STS2 This screen provides a graphical Mimic display of the switch s operation plus system information including system parameters alarms and
149. her This technique prevents a faulted source from feeding into the other good source Source Transfer The Liebert STS2 allows manually initiated transfers between the two sources On units without the Optimized Transfer option the alternate source must be within acceptable voltage limits and phase tolerances with the preferred source You begin a manual transfer by selecting the inactive source as the preferred source On a manual transfer the Liebert STS2 transfers between the two sources with less than one 1 millisecond interruption of power to the load The transfer can only be completed when both sources are available and synchronized within the user adjustable phase synchronization window For sources where the two frequencies are not exactly in phase manually initiated transfers are delayed by the Liebert STS2 until the two sources are within the defined phase synchronization window The Liebert STS2 with Optimized Transfer option allows manually initiated transfer at any phase difference does not require synchronization as long as the alternate source is within acceptable voltage limits with the preferred source Transfer is not delayed if the two frequencies are not in phase Source selection can also be done remotely using the Remote Source Selection option if installed Automatic Transfer Retransfer If the preferred source is out of voltage and or frequency limits the load is automatically transferred to the alternate source
150. iebert SiteScan monitoring system using a 2 wire twisted pair for reliable communication up to 1000 meters 3281 feet Information available from the RS 422 port includes the present switch status information all monitoring parameters and all active alarms The Comms Board is equipped with a modem interface for remote reporting of the present switch status information alarm history information and the history of status screens that are triggered upon a major alarm event The monitoring system software also supports an auto dial feature that allows the system to automatically dial programmed phone numbers by way of the modem to report designated alarm conditions Programming the Comms Board is performed through the touch screen display See Comm Options on page 93 for details See Figures 21 and 22 for the location of the Comms Board See Figure 26 for information on the control wiring Liebert IntelliSlot SNMP Web Modbus 485 Card A Liebert IntelliSlot SNMP Web Modbus 485 card enables the Liebert STS2 to communicate to a network management system NMS The card provides the internal hardware and software to communicate via SNMP Web HTTP to any IP based Ethernet network through an RJ 45 connector using Category 5 cabling The Liebert SNMP Web Modbus 485 card provides redundant paths for communications that make it possible to connect to a Building Management System BMS using Modbus while simultaneously communicating to a NMS through
151. igure 45 Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 FIGURES Recommended derating for high altitude 7 Maximum ambient temperature for full load operation at higher altitudes 7 Typical static transfer switch one line diagram 10 Typical one line diagram of two PDUs and a Liebert 5 52 12 Outline drawing 100 250 amp Liebert 52 18 Outline drawing 400 600 amp Liebert 52 19 Outline drawing 800 1000 amp Liebert 5 52 20 Outline drawing 100 250amp Liebert STS2 with a key lockout switch option 21 Outline drawing 400 600 amp Liebert STS2 with a key lockout switch option 22 Outline drawing 800 1000 amp Liebert STS2 with the key lockout switch option 23 Seismic anchor drawing 100 250 amp Liebert STS2 24 Seismic anchor drawing 400 600 amp Liebert STS2 25 Seismic anchor drawing 800 1000 amp Liebert STS2 26 Electrical field connections drawing 100 250 amp Liebert STS2 with single output breaker 27 Electrical field connections drawing 100 250 amp Liebert STS2 with dual output breakers 2
152. input junction boxes are shipped unattached to the unit for connection between the junction boxes and the bus bars provided inside the unit Input junction box installation is discussed in 5 2 Input Junction Box Installation Optional on page 10 If input junction boxes are not furnished the input power connections are made to the bus bars provided inside the unit These bus bars are accessible through the front of the unit Output power connections also are made to the bus bars provided inside the unit These bus bars are accessible through the front of the unit See Figures 14 to 19 for details on the bus bars A WARNING Risk of electric shock Verify that all input power and control circuits are de energized and locked out before making connections inside unit The two input power feeds sources to the Liebert STS2 should be from two independent sources to avoid a common source failure To ensure proper operation of the Liebert STS2 the two input sources must be the same nominal voltage level and phase rotation For uninterrupted automatic transfer the two input sources should be synchronized within 15 degrees A CAUTION Risk of unit damage The input sources to the static switch must be grounded wye sources Input sources other than solidly grounded wye sources may cause damage to the switch The Liebert STS2 is designed for operation with 3 or 4 wire solidly grounded sources only For 4 wire operation the common source
153. ions on using the RS 232 interface 59 Theory of Operation 9 0 THEORY OF OPERATION 9 1 9 1 1 General Description The Liebert STS2 contains all the equipment necessary to prevent an interruption in power flow to the AC load should your primary source fail Liebert STS2 Static Transfer Switch The Liebert STS2 is a 3 pole double throw solid state automatic transfer switch that is fed from two sources The Preferred source is the input source that normally carries the load when both sources are available The preferred source is selectable by the user from the LCD panel or an optional Remote Source Selection The unselected source is referred to as the Alternate source and carries the load if the preferred source should fail or if a manual transfer is initiated The unit uses Silicon Controlled Rectifiers SCRs connected in parallel opposing pairs to function as an AC switch configuration Three pairs of SCRs connect the AC load to the selected preferred input source as long as the preferred source is available A second set of SCRs stands ready to transfer the AC load to the alternate input source should the preferred source fail The switching action is a very fast break before make without an interruption of power to the load longer than 1 4 cycle During static switch transfers and retransfers the conduction state of the SCRs is carefully monitored and controlled to prevent a current path from one source to the ot
154. iption 104 voltage xev u eae BA alte C ache Ce UR eae WA e s 111 System current Peer secs asta p Pete 111 Electrical requirements 112 Unit short circuit withstand capability 112 Frame 81268 2 23 21 ret tod bt uQ eee ee S 113 MTA plac pinout eee Sl sea te BR SY 115 DB9 pinoUt une au DU UR roe eS UC HER HE 115 19 292 Pe ito enced VO ur Cati tata qe ee dud 116 Torque tie iLentng cce EDS E e CI DN ERAN es SR ua 138 vi IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during the installation and maintenance of the Liebert STS2 A A A WARNING The unit is supplied by more than one power source The unit contains hazardous voltages if any of the input sources are ON even when the unit is in bypass To isolate the unit turn OFF and lock out ALL input power sources Verify that all input power sources are de energized and locked out before making connections inside unit Lethal voltages exist inside the unit during normal operation Only qualified service personnel should perform maintenance on the static switch NOTE Read the entire manu
155. is event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 51 SCR OPEN Source 1 SCR Open One or more SCRs on Source 1 is open Transferring between sources has been inhibited Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Liebert STS2 output has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 117 Event Message Help Text 52 SCR OPEN Source 2 SCR Open One or more SCRs on Source 2 is open Transferring between sources has been inhibited Liebert STS2 output has been transferred to Source 1 Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN
156. itch failure or for maintenance of the switch Refer to the static transfer switch one line diagram Figure 3 While operating on maintenance bypass all voltages are removed from the Liebert STS2 electronics to facilitate safe repair without de energizing the load using a make before break switching sequence However the unit can be bypassed using a make before break switching sequence only to the same source to which that the switch is connected In the event of source or switch failure the unit should be bypassed only to the current input source The LED display is used to verify the status of the unit during the bypass procedures In the unlikely event that the LED display is not available open the front door and look through the slots in the control door If you can see green LEDs on the gate driver board through that slot then the unit is connected to the source referenced on the label below that slot See Figure 47 Bypass Procedures for Source 1 To bypass the switch for Source 1 NOTE Q To bypass the Source 1 static transfer switch when Source 2 is presently active you must first transfer to Source 1 See Manual Transfer Preferred Source Selection on page 66 1 Verify that Source 1 is supplying power via the LED display Ifthe LED Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 47 2 Remove the interlock key from CB5 and place it in the CB4 interlock Open the alternate
157. l Port Connections 1 3 Connect the terminal to the Liebert STS2 by plugging the cable from the terminal into the RS 232 port This connection can be made at any time After making the connection verify the communications link by pressing ENTER on the terminal keyboard The interface communications system responds as indicated below Repeating command gt Illegal command lt gt or lt HELP gt displays the RS 232 command set lt gt lt command gt or lt HELP gt lt command gt displays specific help for the command SVTP Control gt The SVTP Control gt prompt indicates that RS 232 communications are established If you receive no response or prompt verify that the connector is properly plugged into the port and the PC or terminal serial interface is working properly Enter the desired commands as listed in Table 9 For additional help type lt gt lt command gt or lt HELP gt lt command gt Refer to the corresponding menu options in the 13 0 Liebert STS2 Touch Screen Display for more details about the commands Some terminal commands require a password to function Use the PWD command and a valid password to gain access Table 9 Terminal commands Keys Function Displays this help menu or specific help with a command AA Displays active alarms AF Displays active faults CEL Clears the event log CHL Clears the his
158. lays the current status of the unit System parameters are displayed and help is available to define events See Figure 44 below and Figure 30 The touch screen menus allow the operator to initiate source transfers view event and history logs and view bypass and other operational instructions Figure 44 Liebert STS2 touch screen display Event controls Event Display Mimic SOURCE 2 A B B C C A 1954 195V 195V DA OA OA SILENCE Liebert KEEPING BUSINESS IN BUSINESS Display Panel and amp Help Screen EMERSON Network Power 24 Yi CONFIG LOGS SOURCE XFERS STARTUP PROC BYP PROC HELP Loco Menu Options Touch screen control buttons allow you to reset alarms silence the audible alarm review configurations event and history logs preferred source startup and bypass procedures and the help menu Qualified personnel with a password can use these menus to configure parameters select a preferred source and do manual source transfers LED display units do not have the color LCD touch screen Instead of the touch screen these units are monitored by a series of LEDs and controlled by a series of push buttons Both units can be accessed from a terminal or a PC running terminal emulation software that is attached to the unit Through the RS 232 access you can monitor and configure the unit plus remotely select a preferred source See 12 1 Using the RS 232 Port on page 76 for instruct
159. le alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 system from a terminal type CA and press RETURN on your keyboard 51 CURR SENSE FAIL Source 1 Current Sense Failure The module monitoring the current from Source 1 has failed This module is contained on the left side gate driver board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Events Log is so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 system from a terminal type CA and press RETURN on your keyboard 52 CURR SENSE FAIL Source 2 Current Sense Failure The module monitoring the current from Source 2 has failed This module is contained on the right side gate driver board Press SILENCE on the touch screen to turn off the au
160. lete the following steps to properly remove the Liebert STS2 from the shipping pallet 1 Setthe pallet in a level area with enough room to maneuver and remove the unit 2 Remove the bolts holding the unit to the shipping pallet located in the base of the unit 3 Remove the shipping blocks from under the frame of the unit 4 Use a forklift to raise the unit off the pallet and onto the floor Ensure that the forklift is clear of the unit s casters and leveling feet Lift the unit from the rear 5 Conduct an internal inspection of the unit See the list below of inspection items Internal Inspections After the Liebert STS2 has been unpacked conduct an internal inspection 1 Verify that all items have been received If spare parts were ordered verify their arrival 3 After the Liebert STS2 has been removed from the pallet open the door and remove cabinet panels to check for shipping damage to internal components 4 Check for loose connections or unsecured components in the cabinets 5 Check for any unsafe condition that may be a potential safety hazard After the Liebert STS2 has been inspected and no problems are found the unit can be moved to its installation location If using a forklift remember to lift the unit from the rear Location Considerations 3 0 LOCATION CONSIDERATIONS 3 1 3 2 3 3 The Liebert STS2 should be placed in a clean cool and dry location The Liebert STS2 requires only front a
161. llowing environmental conditions Storage Temperature Range 40 to 80 C 40 to 176 F Operating Temperature Range 0 to 40 C 82 to 104 F Relative Humidity 0 to 95 without condensation Operating Altitude Up to 4000 ft 1200m above sea level without derating Above 4000 ft 1200m output current is derated by 6 per 1000 ft 18 per 1000m Storage Transport Altitude Up to 40 000 ft 12 200m above sea level Audible Noise Less than 55 dBA at 5 ft 1 5m with audible alarm off Location Considerations 3 4 Altitude The standard units are designed for full load operation up to 4000 feet 1200m above sea level See Figure 1 for recommended deratings for altitudes greater than 4000 feet 1200m Figure 1 Recommended derating for high altitude operation 4 00 do VENERE o ov O x 90 88 86 C Dc oo S S S SG oS G 228 25608 28 o5 Sg og eg ON if OO De Of 40 Of Im OB DO Gd IN 1040 OL oL eo Be el ON Sg y Altitude Feet M Above Sea Level Operation at full load at a higher altitude can be accommodated in ambient temperatures less than 104 F 40 C ambient Figure 2 shows the maximum allowable ambient temperature for full load operation at altitudes above 4000 feet 1200 m Figure 2 Maximum ambient temperatu
162. lso available Those options are located a Communications compartment to the right of the touch screen LED front panel and are accessible when the front panel door is open See Figures 21 and 22 for the location of the communications options Connections to the communication ports are made by wiring to terminal boards located in the Communications compartment The communications options listed below reference the control wiring drawing for each option Liebert IntelliSlot SNMP Web Modbus 485 card optional the card provides connectivity to any TCP IP based Ethernet network to allow the device to communicate with network management systems NMS via SNMP Web HTTP Events can be transmitted to the NMS to provide remote status monitoring plus fault and alarm detection The card includes an RJ 45 port for an Ethernet connection via Category 5 cable The Liebert SNMP Web Modbus 485 card can also integrate the system with an existing Building Management System BMS or out of band monitoring using Modbus a standard multi drop protocol The card has redundant communication paths that make it possible to connect to a BMS using Modbus while simultaneously communicating to an NMS through SNMP Web HTTP See Figure 27 for more information on the Liebert SNMP Web Modbus 485 card If you have questions about the card refer to the user guide SL 52615 available at the Liebert Web site www liebert com Input Contact Isolator ICT Board optional
163. lt to clear A shorted SCR automatically trips open a source input switch CB1 or CB2 to prevent transfers in the event of an SCR failure The SCR failure must be investigated and repaired before returning the switch to normal operation Both source input switches must be opened such as when the unit is placed in maintenance bypass for servicing before a shorted or open SCR alarm can be reset List of Messages Table 8 lists available event messages a definition of the event and the functions that are activated with the event by default The functions are indicated as follows D The indicated event initiates the Auto Dial sequence through a modem A The indicated event activates the Audible alarm F The indicated event triggers a Freeze of the History Log L The indicated event Latches latched alarm remains displayed until the alarm condition has cleared and the RESET ALRMRST button has been pressed E By default all faults and alarms are written to the Event Log Changing this setting is only available for the LED units and is set through the RS 232 port See Setting Event Masks with the Terminal on page 84 All of these functions except Freeze can be reconfigured to trigger for each event using the Event Mask option See 11 1 Event Mask on page 71 The Freeze function is hard coded and cannot be changed for an event If the front panel of your Liebert STS2 has LEDs and push buttons instead of the touch sc
164. made Upon successful connection the system transmits a present status data including all active alarms messages After transmission the modem automatically hangs up and returns to the auto answer mode To configure the modem 1 Select MODEM from the Comm Options menu The Modem dialog box is displayed Figure 56 Modem dialog box Modem Modem Type INT EXT Primary Line Secondary Line Init String Baud Rate 0 Modem Health Check YES PITI Auto Dial in Auto Dial out YES YES Save Cancel 2 Select the type of modem that the Liebert STS2 will be using Select INT internal modem not available Select EXT if the Liebert STS2 will be communicating via an external modem 3 Select the PRIMARY LINE choice to enter the primary telephone number for the modem to dial when an alarm 1s triggered 4 Enterthe number in the keypad dialog box 5 Select OK to save the telephone number The number is displayed in the field adjacent to the Primary Line choice 6 Select the SECONDARY LINE choice to enter the secondary telephone number for the modem to dial when an alarm is triggered 7 Enter the number in the keypad dialog box 8 Select OK to save the telephone number The number is displayed in the field adjacent to the Secondary Line choice 94 Liebert 5752 Touch Screen Display 13 8 2 10 11 12 13 Select INIT STRING to configure the initialization string Thi
165. mmands used to access the logs Event Log The events are tracked in sequence of occurrence The sequence of occurrence is identified by date time and frame number The last 512 events are stored in a nonvolatile memory and can be viewed from the Event Log Event logs wrap meaning when the log is full the oldest event is deleted when a new event is written to the log The Event Log tracks the sequence number in which the event occurred since the log was last cleared Message the event that occurred such as Ambient Overtemp Source 1 Fail etc Type either a Fault or Alarm See 11 0 Alarm and Faults on page 71 for further details on these events ID the event identifier Date and Time when the event occurred Faults the number of fault events logged Alarms the number of alarm events logged User Alarms the number of alarm events logged that were triggered by user created alarms such as those alarms created with the Input Contact Isolator settings Total the sum of all the events currently logged History Log When a designated major alarm occurs the History Status buffer is frozen capturing 64 sequential frames before and after the alarm condition When the History Status buffer is frozen a History Log 1s created Two History Logs are available to track major alarms This log includes the triggering event plus the surrounding events and the system voltages curre
166. mputing Outside Plant Racks amp Integrated Cabinets Connectivity Embedded Power IE Power Switching amp Controls Services DC Power Infrastructure Management amp Monitoring I Precision Cooling Surge Protection EmersonNetworkPower com Emerson Business Critical Continuity Emerson Network Power and the Emerson Network Power logo are trademarks of Emerson Electric Co or one of its affiliated companies 2010 Emerson Electric Co
167. n the touch screen to turn off the audible alarm if so configured If you are accessing the unit from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 123 Event Message Help Text CB1 SHUNT TRIP FAIL Circuit Breaker 1 Shunt Trip Failure Circuit Breaker 1 failed to trip open when the control issued a command for the circuit breaker to trip Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB2 SHUNT TRIP FAIL Circuit Breaker 2 Shunt Trip Failure Circuit Breaker 2 failed to trip open when the contr
168. nd updates the state of the relay 97 Liebert 5752 Touch Screen Display To configure your programmable relay boards for user defined settings Select PROG RELAY BOARD x from the Comm Options dialog box where x is the corresponding board number The Prog Relay Board dialog box is displayed Figure 58 Programmable relay board dialog box 13 8 5 Prog Relay Board 1 USER DEFINED SET STANDARD SET Programming Relay EA ma 3 4 5 6 7 126 Relay 1 CB1 SHUNT TRIP FAIL ij CB2 SHUNT TRIP FAIL CB6 NEUT OPEN CONTACTOR NEUT FAIL LULA CONTROL MODULE FAIL maa ron f Save Cancel Select your configuration settings Select STANDARD SET to use the settings configured at the factory See Go to step 4 Select USER DEFINED SET to configure your own settings Go to step 3 If you enter a user defined setting record the setting in Programmable Relay Board Settings Record on page 140 If for some reason the control board is replaced it will be necessary to reprogram the Programmable Relay Board with this information To define your relay board settings a Select a Programming Relay b Select an event you want associated with the relay That fault is placed in the Relay column You can associate up to ten 10 events with one relay If you do so you should group the events logically to simplify troubleshooting when an event is triggered Select SAVE to keep the s
169. nfiguring Pager Support Input Contact Isolator 13 8 3 Configuring the Input Contact Isolator Settings Prog Relay Board 13 8 4 Configuring the Programmable Relay Board Settings Network Interface Card 13 8 5 Configuring the Liebert IntelliSlot SNMP Web Modbus 485 Card Site Scan 13 8 6 Liebert SiteScan Configuration Modem 13 8 4 Configuring the Programmable Relay Board Settings Figure 55 Comm options dialog box Comm Options YES NO YES NO Option buttons Input Contact Isolator YES NO Prog Relay Board st1 YES NO Prog Relay Board 2 YES NO Network Interface Card YES NO Site Scan YES NO Cancel 93 Liebert 5752 Touch Screen Display 13 8 1 Configuring the Modem The Modem dialog box allows you to configure the optional external modem that is connected to the Liebert STS2 The dialog box contains a series of choices that access either a keypad or a secondary dialog to configure settings Auto dial can also be configured for the modem to be triggered by events as set up in the Event Mask choices Designated major alarms activate the auto dial modem sequence Automatic dial attempts are made to the first number three times at 30 seconds between attempts If connection is not established in that time period the system automatically rolls over to the second number Auto dial attempts are made again three more times at 30 seconds between attempts The process is repeated until a successful connection is
170. ng of the solid state switch A bypass breaker cannot be closed unless the solid state switch is connected to the same input source and only one bypass breaker can be closed at a time All breakers are equipped with N O and N C auxiliary switches for monitoring of the breaker positions The two input breakers for the solid state switching devices also are equipped with 48 VDC shunt trips to allow for control by the Liebert STS2 logic See Figure 20 Liebert STS2 non automatic circuit breaker schedule Cable Entrance Removable conduit termination plates are provided in the top and bottom of the Liebert STS2 for termination of the two source input conduits or raceways and or the output conduits or raceways Doors A removable key lock hinged front door provides access to the circuit breakers Color Graphical Display or LED Display The display is located in the front of the unit Front panel display is either an LCD touch screen display for monitoring and configuring the unit or an LED panel to monitor the unit s status See Figure 30 for a drawing of the touch screen display See Figure 62 for the layout of the LED display 114 Specifications 15 2 9 RS 232 Port The unit is equipped with an RS 232 port for connecting a terminal or PC See Figure 28 for the port s location See 12 1 Using the RS 232 Port for instructions on using a PC terminal with the unit 15 2 10 Terminal Port Connections The system has an asynch
171. nger than 1 4 cycle If a problem is detected with a primary Preferred input source and defined trigger points are reached the Liebert STS2 automatically switches the input to the other Alternate input source The Liebert STS2 continues to monitor both sources and can automatically transfer the load back to the preferred source if so configured when that source returns to acceptable operating parameters The system control logic automatically monitors the input sources and power output to ensure that they are operating within acceptable tolerances The system logic manages the transfer between sources The Liebert STS2 front panel contains either a Color Graphical Display on an LCD touch screen or an LED display The Color Graphical Display provides a menu driven operator interface and a display of system information status information a one line diagram Mimic of the Liebert STS2 active alarms and alarm history information The menu selections provide control of the preferred source manual transfer initiation Buttons provide for audible alarm silence and reset Through the touch screen specific voltage current and environmental parameters can be configured to trigger events that can sound an alarm write to a history log and either transfer sources or inhibit a transfer In units not equipped with the touch screen LEDs provide the user with the ability to monitor the Liebert STS2 and quickly assess problems Preferred inp
172. nit from a terminal type CA and press RETURN on your keyboard DATE REPROGRAMMED System Date Reprogrammed The system s date setting has been updated and saved Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 136 Event Message Help Text EVENT LOG CLEARED Event Log Cleared All past alarms and faults are no longer recorded in the system s event log Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard HIST LOGS CLEARED History Logs Cleared Both History Logs have been erased and the logs are now available to record f
173. nnel safety although proper grounding also enhances equipment performance input and output power feeds must include an equipment grounding means as required by the NEC and local codes An insulated equipment ground conductor is recommended to run with each input and output power feed The equipment ground conductors should be at least the minimum size conductor per the NEC based on the upstream overcurrent protection device A WARNING If conduit is used as a grounding means adequate electrical continuity must be maintained at all conduit connections The use of isolating bushings with a metal conduit can be a safety hazard and is not recommended 4 Wire Plus Ground Systems When 4 wire plus ground input feeds are utilized the input power sources must be properly grounded Because the neutral is not switched by the Liebert STS2 the neutrals of the two power sources are solidly interconnected The NEC prohibits grounding a power source at more than one point Connecting the neutrals of two grounded power sources together effectively grounds each of the sources at more than one point which allows neutral current to flow on the ground system defeats ground fault protection creates a safety hazard and violates the NEC Where possible the two power sources should be located in close proximity and a single neutral to ground bond made as shown in Figure 4 on page 12 or as 1s typical with a double ended substation Figure4 Typical
174. not equipped with a keylock a password is required when you attempt to Save changes in the CONFIG menu choices Transfer sources Reset active alarms Clear logs When a password is requested a keyboard is displayed on the touch screen After you enter the password select OK The password is case sensitive Password access times out after ten 10 minutes and must be re entered to save changes The time out period cannot be changed To set or reset the password 1 Select SYSTEM SETTINGS from the CONFIG menu 2 Select SYSTEM ID form the SYSTEM SETTINGS menu 3 Click PASSWORD A keyboard is displayed 4 Enter a password The password must be four 4 alpha numeric characters and is case sensitive 5 Click OK 87 Liebert 5752 Touch Screen Display 13 3 13 4 13 5 13 6 13 7 13 7 1 13 7 2 Mimic Display The Mimic display provides a color diagram of the operation of the Liebert STS2 This display imitates the power flow through the static transfer switch and indicates source status breaker status switch status source voltage and current readings output power measurements and active alarm messages See Figure 48 on page 85 Event Controls The Liebert STS2 detects events when certain thresholds are passed or certain problems occur The alarm controls allow you to acknowledge the existence of these events RESET All latched events whose conditions have cleared are removed from the
175. nsfer is inhibited or a bypass circuit breaker is closed If the alarm LED remains lit check the PC terminal to identify the alarm Refer to 11 0 Alarm and Faults for a description of the alarms and possible causes All active alarm conditions should be corrected before proceeding 12 If the unit is supplied with an output distribution cabinet close output breakers as required 13 Turn on the load equipment following the load equipment manufacturer s recommendations 106 Operating the Liebert STS2 LED Display 14 2 2 Manual Transfer Preferred Source Selection The preferred source buttons allow you to change the preferred source Transfers are only permitted when the voltage and current are within their proper operating range and the sources are synchronized Transfer is inhibited if the deviation exceeds the parameter set in the Source Set Points NOTE Q If one source will be de energized for an extended period hours or days set the unit to bypass mode for the remaining source Without using bypass if a failure occurs in the switch components for remaining source the Liebert STS2 does not have a second source to switch to and the load would not receive power See 14 2 3 Maintenance Bypass on page 108 for bypass instructions To manually select the preferred source 1 Ensure that the Transfer Inhibit NOXF LED is not lit If the Transfer Inhibit LED is lit Check to see if the red alarm LED is lit Ifthe alarm
176. nts frequency power source selection and breaker positions at the time of the event The History Log displays the 64 sequential frames in 4 millisecond intervals of the Present Status screens surrounding the event If you are viewing the log from the touch screen the Mimic and the Event Display show the data that was present as the alarm was triggered The data is displayed as frames are played The History Log allows you to replay the events leading up to the alarm and the events right after the alarm to see the status of the switch at that time and diagnose the cause of the alarm The History Log is triggered when certain events are tripped that have the Freeze option enabled You can run through the frames sequentially The sequence of the events is identified by date time and frame number The History Log frames are stored in a nonvolatile memory buffer that is continuously overwritten until a designated fault condition occurs When the fault occurs to trigger a freeze the History Log stores the next 23 frames then freezes until it is reset The History Log then keeps 40 frames before the fault the frame where the fault occurred plus the next 23 frames The History Log should not be reset until the fault condition that caused the buffer to freeze reviewed and investigated by a qualified service technician After the alarm condition has been corrected the History Log can be cleared 72 Alarm and Faults 11 3 The His
177. o junction boxes are supplied one for each input 2 Cable s are factory supplied to connect the junction box to the input busbars See electrical field connections drawing for location 3 Parallel cables are used on 400A and 600A units Input Junction Box Dimensional Data Inches mm Rating A B C D E F G H Wire Size Range 100A 16 406 14 356 6 152 17 1 2 445 12 305 16 3 4 426 5 16 8 1 25 6 AWG to 2 0 AWG 250A 600A 16 406 30 762 6 152 33 830 10 254 32 813 7 16 11 3 76 2 HE AWG to 2 42 Installation Drawings Figure 30 Color LCD touch screen display 0 00011254 SNOILdO NNAW gt _09011 TANVd AV 1dSIG 5 S33H930G 86 Ad SGV31 5 SH3jX 0 QVO 9608 NM OL 02 1041 0 dNLYVLS 5 5 ZH 00 vo vo AS6L AGEL AGEL VO od JOYNOS ZH 009 vooz 002 002 A802 A802 80 av 5 5901 SIJNOO dWALYSA0 LN3ISINV dIN3 LH3AO LNANdINOA dWALYSAO MNISL1V3 AV IdSId 1 N3A3 N3dO H9S ZS N3dO HOS 15 1 5 HOS ZS 5 MOS IS S IOHLNOO ALVNYSLIV OINIIN THE 43 Installation Drawings Figure 31 LED display PS211002 Rev 0 LED DISPLAY LEGEND
178. odel numbers correspond with the one specified Record the model numbers and serial numbers in the front of this installation manual A record of this information is necessary should servicing be required 6 If unit is to be stored before installation it is recommended to store the unit in a dry environment with temperatures in the range of 40 F 40 C to 176 F 80 C Use original packing materials or other suitable means to keep the unit clean When opening the shipping crate use care not to puncture the container with sharp objects Unloading and Handling A CAUTION Risk of unit damage When moving the unit by forklift lift the unit from the rear so as to protect the front panel Do not exceed a 15 degree tilt with the forklift Also if you are moving the unit by forklift or pallet jack after it has been removed from the pallet be aware of the location of the casters and leveling feet so as not to damage them Most Liebert STS2 models are contained in one cabinet The 800 1000 amp units are contained in two cabinets that are connected together and shipped on one pallet Because the weight distribution in the cabinet is uneven use extreme care during handling and transporting The unit can be moved by forklift or pallet jack See 2 2 2 Unit Preparation on page 5 for instruction on removing the Liebert STS2 from the pallet Unpacking and Inspections 2 2 1 2 2 2 2 3 Handling Considerations The static
179. of the nominal voltage as set in the Fast UV set point under the User Settings An S1 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 51 UV RMS Source 1 Under Voltage slow detection The input voltage from Source 1 remained below a set percentage of the nominal voltage for a designated period as set in the Slow UV Setting and Slow UV Detection Delay set points configured under the User Settings An 51 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The alarm is latched and must be reset after the voltage returns to the nominal voltage If the Reset option is no
180. ol issued a command for the circuit breaker to trip Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard HEAT SINK OVERTEMP Heat Sink Over Temperature The system heat sink temperature has exceeded the design limits Take immediate steps to cool the unit Remove obstructions from the air inlet in the front of the unit Remove and replace the air filter behind the front door A standard furnace filter can be used Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 124 Event Message Help Text 51 UV Source 1 Under Voltage fast detection The input voltage from Source 1 dropped below a set percentage
181. only indicates that power is present to the power supply it does not indicate if the power is within the programmed tolerances of the unit Green Source within Tolerance A green LED is lit if Source 1 power is within the programmed tolerance for all phases D Crean Source 66 A green LED is lit if Source 2 power is within the programmed tolerance for all phases Green Source 1 SCRs on A green LED is lit when the SCRs for Source 1 are closed F Green Source 2 SCRs on A green LED is lit when the SCRs for Source 2 are closed A yellow amber LED is lit when source transfers are inhibited G Source transferinhibited locked out by a hardware condition Connect a PC terminal to the Liebert STS2 to locate the exact cause See 12 0 Communication Interfaces for PC terminal commands Push button to select Source 1 A green LED is lit if the button has been pushed to set Source 1 as H Green as the preferred source the preferred source Push button to select Source 2 A green LED is lit if the button has been pushed to set Source 2 as as the preferred source the preferred source J Green Output power is present LED is lit to indicate that power is present on the output Push this button to turn off the horn that is sounded for an alarm K Alarm silence button This button does not reset an alarm condition unless pushed simultaneously with button Symbol to indicate the K and M L must be pushed
182. ons dialog box Configuring Pager Support Pager support will be implemented in an upcoming update of the system This support will trigger the system to call a pager when specified events occur This menu choice will allow you to enter the telephone number and PIN for the pager that you want the system to call 95 Liebert 5752 Touch Screen Display 13 8 3 Configuring the Input Contact Isolator Settings The Input Contact Isolator ICI is an optional eight channel input board for up to eight external user alarm or message inputs to be routed to the Liebert STS2 s alarm network If the Transfer Inhibit option is supplied the ICI will accommodate up to seven external user alarm or message inputs The contact 1s set to either be normally open or normally closed When a contact closes or opens an event is triggered See 6 4 Input Contact Isolator Board for more information on the ICI The Input Contact Isolator options are configured through the Input Contact Isolator dialog box which is accessed from the Comm Options dialog box The Input Contact Isolator dialog box contains eight choices to match the eight channel input board You can label each button to identify the event associated with the contact When the dialog box is accessed each button flashes to display the Input Contact Isolator number and the user entered label This label also appears in the Display Panel when an event related to an Input Isolator Connector is trigger
183. ort changes in event condition states If the event condition s state changes from inactive to active a new event is detected If the transition is from active to inactive the event condition has cleared Process new faults and alarms and clear inactive alarms Provide the alarm reset and silence options 62 Theory of Operation 9 2 2 9 2 3 9 2 4 9 2 5 9 2 6 Circuit Breakers Three circuit breakers provide total isolation of the solid state switching devices with an input breaker for each source and a load isolation breaker Two breakers provide for maintenance bypassing of the solid state switching devices to either input source All switches in the Liebert STS2 are plug in types which allows any switch to be replaced without de energizing the output bus The breakers have an interlock in the plug in base which prevents the switch from being withdrawn in the CLOSED position The switch trips OPEN before it disconnects from the plug in base See 15 2 5 Circuit Breakers for specifications and more information pertaining to the circuit breakers See Figure 14 to Figure 19 for circuit breaker locations The circuit breaker schedule is provided in Figure 20 SCRs Brick type SCRs are used rated to carry the full 100 rated load Because the unit is a fuseless design with non automatic circuit breakers overcurrent protection is provided by upstream circuit breakers Logic Modules The logic contains three se
184. parate redundant logic modules The modules contain the logic necessary to run the Liebert STS2 and control transfers and shunt trips under all circumstances without any outside assistance once set up and started properly Audible Alarm An audible alarm is installed on the control board This alarm is triggered by an alarm condition detected on the unit The alarm can be turned off from the touch screen Color Graphical Display units or by a push button LED Display units Turning off the audible alarm does not clear or reset the condition that triggered the alarm RS 232 Port RS 232 serial port is provided to allow an external terminal to be connected as another user interface See 12 1 Using the RS 232 Port on page 76 for more information on using the RS 232 port 63 Operating Instructions for the Touch Screen Interface 10 0 OPERATING INSTRUCTIONS FOR THE TOUCH SCREEN INTERFACE A CAUTION Before the unit is placed into service for the first time after equipment relocation or after the equipment has been de energized for an extended period of time a thorough equipment inspection and supervised startup by qualified personnel are strongly recommended Contact your local Emerson Network Power representative or Liebert Services at 1 800 543 2378 to arrange for equipment inspection and startup After the initial equipment startup the following operating guidelines can be used for standard equipment operation These g
185. port to access the data and configuration settings that are available in the Color Graphical Display touch screen See 12 1 Using the RS 232 Port for instructions on setting up and using a terminal with the unit LEDs and Buttons and Key Lockout Switch The LED Display unit is monitored and controlled through a series of LEDs and buttons and an optional key lockout switch This section includes illustrations of the LEDs buttons and key lockout switch plus tables providing definitions of these components Front Panel Controls The front panel contains the LEDs to monitor the Liebert STS2 plus selection buttons to choose the preferred source Figure 62 provides a breakdown of the front panel Table 15 on page 104 defines the LEDs and the push buttons on the display Figure 62 LED display PS211002 Rev 0 103 Operating the Liebert STS2 LED Display 14 1 2 LED and Push Button Description The following table defines the LEDs and push buttons in the LED display Table 15 LED and push button description Symbol LED Description Action A green LED is lit if the Source 1 input power is present This LED A Green Source 1 power is present only indicates that power is present to the power supply it does not indicate if the power is within the programmed tolerances of the unit A green LED is lit if the Source 2 input power is present This LED B Green Source 2 power is present
186. r System Settings the command would begin with SPT 26 where 6 is the value Options_1 Note the space between each parameter 78 Communication Interfaces Value Parameter Item settings depending on what they are use various value types Table 10 provides a list of the possible value types and their description Table 10 Value types Type Definition Numeric An integer numeric value in the units indicated by the item name For example a System Voltage Rating of 480 would indicate 480 volts Scaled Similar to the Numeric this value type is an integer that has been scaled usually to remove decimal points that would normally appear within the value In this case a value of 2 5 may actually be input as simply 25 For all Scaled types the scaling appears in Table 11 String Certain settings are represented by alphanumeric character strings such as setting the System Model Number to Liebert STS2 Enumeration This type uses an indexed list to represent possible choices One example is the Modem Baud Rate which uses a value of 0 to select 2400 bps 7 for 9600 bps and 2 for 19200 bps Bit packed This type of value uses a hexadecimal binary word where each of the sixteen bits in the word has the value of 1 True or 0 False Although somewhat difficult to use it packs a large amount of data within a single entry A detailed description of this type appears in section 12 1 3 Setting Bitpacked Options with the Terminal on p
187. re for full load operation at higher altitudes Maximum Ambient 86 0 30 om Om Om os og ogos8os ot eg QoQ9QipD OG OO YA 2 0200020202 2042 1220 VEL IL lt D s SS D D S Altitude Feet M Above Sea Level Locating the Liebert 5 52 4 0 LOCATING THE LIEBERT STS2 4 1 4 2 4 3 This section provides instructions for leveling the Liebert STS2 and anchoring the unit to the floor should that be required For leveling feet details see Figures 5 through 10 Leveling and Anchoring the Unit to the Floor The Liebert STS2 can be anchored to the concrete floor to ensure stability for the unit in the event of seismic activity The seismic brackets are an option for the Liebert STS2 and are shipped separately from the unit when ordered See Figures 11 through 13 for instructions and details for installing seismic anchoring Leveling of the Static Switch Without Anchoring The Liebert STS2 is furnished with casters and leveling feet After final positioning of the unit adjust the leveling feet located in each corner of the frame base to level and stabilize the unit Leveling and Anchoring the Static Switch Using Floor Stand The Liebert STS2 can be installed using the optional floor stand to support the unit instead of using the raised floor The Liebert STS2 can
188. reen interface you can view these messages via the RS 232 port See 12 1 1 Connecting and Using a Terminal on page 77 for the commands to view the event messages on a PC terminal An LED is used to indicate the presence of any active fault or alarm Refer to 14 0 Operating the Liebert STS2 LED Display for more information about the LEDs 73 Alarm and Faults Table 8 Event messages ID Alarm Message Description Cause Action 001 S1 SCR SHORT One or more of the SCRs for Source 1 have shorted and failed D F A E 002 S2 SCR SHORT One or more of the SCRs for Source 2 have shorted and failed D F A E 003 S1 SCR OPEN One or more of the SCRs for Source 1 is open D F AE 004 S2 SCR OPEN One or more of the SCRs for Source 2 is open D F AE 005 PRIMARY FAN FAIL Aed er a seoan 006 CONTROL MODULE FAIL Control logic module has failed D A 007 PWR SPLY DC A FAIL Power supply DC bus A has failed D A 008 PWR SPLY DC B FAIL Power supply DC bus B has failed D A 009 PWR SPLY S1 AC FAIL Power supply Source 1 AC has failed D 010 PWR SPLY S2 AC FAIL Power supply Source 2 AC has failed D 011 PWR SPLY LOGIC FAIL A power supply module has failed D 012 OUT VOLT SENSE FAIL The output volt sense module failed D AE 013 S1 VOLT SENSE FAIL The Source 1 volt sen
189. remove it to lock out the breaker Secure the key according to your site s lockout tagout procedure Open output breakers CB3 and if supplied to remove power and isolate the static switch from the load To return to normal mode OU m Insert the key in breaker interlock Rotate the key to retract the interlock Close source input breaker Verify Source 1 and breaker status on the Mimic screen Select the SOURCE 1 button in the SOURCE XFERS menu Close output breakers CB3 and if supplied Verify CB3 and breaker status Verify that STS SOURCE 1 and OUTPUT boxes are highlighted on the Mimic screen Open bypass breaker CB4 Rotate the keys in the CB4 interlock to extend the interlock Remove the proper key from the CB4 interlock and insert it in the CB2 breaker interlock Rotate the key to retract the CB2 breaker interlock Close source input breaker CB2 Verify the STS SOURCE 2 box and CB2 breaker status on the Mimic screen Ifthe Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 47 69 Operating Instructions for the Touch Screen Interface 10 4 2 Bypass Procedures for Source 2 10 5 10 5 1 10 5 2 To bypass the switch for Source 2 NOTE To bypass the Source 2 static transfer switch when Source 1 is presentl
190. ress RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard OUTPUT UV Output Undervoltage The voltage being supplied to the load has dropped below the acceptable nominal voltage Check the input voltage from both sources This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 1 Input Contact Isolator 1 Occurrence of the indicated external event has been detected by Input Contact Isolator 1 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2
191. ritten to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard PASSWORD CHANGED Access Password Changed The password for accessing the HMI touch screen options has been updated and saved Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The alarm has triggered a message to be sent to the modem if so configured The event was written to the Event Log if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard TIME REPROGRAMMED System Time Reprogrammed The system s time setting has been updated and saved Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the u
192. ronous serial port configured as Data Terminal Equipment for terminal access only half duplex The CPU services the terminal port with no handshaking The serial port conforms to RS 232 levels with a data format of 9600 Baud 1 start bit 8 data bits and no parity bits The serial port is 1000VDC isolated non SELV and ESD protected to 15kV air discharge The connector is a 6 Pin MTA plug with connections shown below Table 21 MTA plug pinout Pin Signal Name Function Comments 1 ISO_GND Isolated service terminal ground 2 ISO TXD Isolated service terminal transmit output 3 ISO RXD Isolated service terminal receive input 4 NC No Connection 5 NC No Connection 6 NC No Connection A DB9 male connector is added and connected parallel to the 6 position header It is configured as DTE Table 22 DB9 pinout Pin Signal Name Function Comments 1 NC No Connection 2 ISO RXD Isolated service terminal transmit output 3 ISO TXD Isolated service terminal receive input 4 NC No Connection 5 ISO GND Isolated service terminal ground 6 NC No Connection 7 NC No Connection 8 NC No Connection 9 NC No Connection 115 Specifications 15 2 11 RS 232 Interface Parameters The service terminal interface parameters are the following settings and cannot be changed Table 23 RS 232 settings Parameter Setting Interface RS 232 Using EIA Voltage Levels Baud Rate 9600 P
193. rt STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 system from a terminal type CA and press RETURN on your keyboard 51 SCR SENSE FAIL Source 1 SCR Sense Module Failed The module contained on the snubber monitoring the SCRs for Source 1 has failed Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert Services for technical support at 1 800 LIEBERT 800 543 2378 This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the Liebert STS2 system from a terminal type CA and press RETURN on your keyboard 121 Event Message Help Text 52 SCR SENSE FAIL Source 2 SCR Sense Module Failed The module contained on the snubber monitoring the SCRs for Source 2 has failed Press SILENCE on the touch screen to turn off the audib
194. s string configures the parameters of the modem Check your modem s documentation for this setting Select BAUD RATE to display a dialog with the baud rate choices For an external modem select from 2400 bps 9600 bps or 19200 bps Configure the MODEM HEALTH CHECK The Health Check verifies that the modem is working properly This setting allows you to enable the check and set when it 1s run a Select the button to display the Modem Health Check dialog box from which you can access further dialogs to set the time and days that the check is run b Select SAVE to keep the settings The Health Check dialog box is closed and the Modem dialog box is again active c Select YES in the Modem dialog box to activate the Modem Health Check If you select NO the Modem Health Check is not run Configure AUTO DIAL IN Auto Dial In allows a user to dial into the Liebert STS2 through the modem to check status and access the system via a hyperterminal connection a Select YES to activate the dial in feature b Select NO to deactivate the dial in feature Configure AUTO DIAL OUT Auto Dial Out allows the Liebert STS2 to automatically dial out to a system to notify a user of an event or status a Select YES to activate the dial out feature b Select NO to deactivate the dial out feature 14 Select SAVE to keep the modem configuration settings 15 Select YES in the Comm Options dialog box to activate the settings You are returned to the Comm Opti
195. se module failed D AE 014 52 VOLT SENSE FAIL The Source 2 volt sense module failed D AE 015 S1 SCR SENSE FAIL The Source 1 SCR sense module failed D AE 016 S2 SCR SENSE FAIL The Source 2 SCR sense module failed D AE 017 S1 CURR SENSE FAIL The Source 1 SCR current module failed D A E 018 S2 CURR SENSE FAIL The Source 2 SCR current module failed D A E 019 S1 GATE DRIVE FAIL The Source 1 gate drive module failed D A 020 S2 GATE DRIVE FAIL The Source 2 gate drive module failed 021 INTERNAL COMM FAIL Internal CAN communications failed D A E 022 EXTERNAL COMM FAIL Options CAN communications failed 023 CB1 SHUNT TRIP FAIL CB1 shunt trip failed 024 CB2 SHUNT TRIP FAIL CB2 shunt trip failed D A E 064 HEATSINK OVERTEMP Heatsink has exceeded the recommended temperature 067 S1 UV Source 1 under voltage fast detection 068 S1 UV RMS Source 1 under voltage slow detection L A E 069 S1 OV Source 1 over voltage 070 S1 OF UF Source 1 over frequency under frequency A E 071 S1 FAIL Source 1 failure 072 S2 UV Source 2 under voltage fast detection 073 S2 UV RMS Source 2 under voltage slow detection 074 52 OV Source 2 over voltage 075 52 OF UF Source 2 over frequency under frequency E 076 S2 FAIL Source 2 failure 077 S1 OVERCURRENT Source 1 over current 078 S2 OVERCURRENT Source 2 over current
196. ser Settings allows you to configure operations for the Liebert STS2 System Settings accesses another pop up menu to configure communication and system choices and the system ID Event Masks User Settings System Settings Each of these choices accesses a separate dialog box System Ratings The System Ratings menu is used to set the nominal line frequency nominal voltage and nominal current at which the system operates when it is installed These settings are configured when the system is initialized at the factory or under maintenance and should not be changed by the user Event Masks The Liebert STS2 gathers processes and reports faults and alarms collectively referred to below as events The Event Mask dialog box allows you to set the system s response for specific alarms and faults that are generated See 11 0 Alarm and Faults for more information on events and 11 1 Event Mask for the definitions of the Event Mask types 88 Liebert STS2 Touch Screen Display To set the event masks 1 Access the Event Mask dialog box a Select CONFIG b Select EVENT MASK from the pop up menu The Event Mask dialog box is displayed See Figure 52 2 Select the mask settings for each fault and alarm a Select YES to enable the setting Select NO to disable the setting 3 Select SAVE to keep the settings Figure 52 Event mask dialog box 13 7 3 User Settings The Us
197. so issued and source transfer has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 127 Event Message Help Text S2 FAIL Source 2 Failure Source 2 has failed due to under voltage UV over voltage OV or running with an over or under frequency OF UF This alarm is a companion to 52 UV 52 UV RMS S2 OV and 52 OF UF The load of the Liebert STS2 has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard S1 OVERCURRENT Source 1 Overcurrent Liebert STS2 is running on Source 1
198. source input breaker CB2 Verify that CB2 LED is off Rotate and remove the CB2 interlock key Insert the key in the CB4 bypass breaker interlock Rotate the interlock keys in the CB4 bypass breaker interlock to retract the interlock Close bypass breaker CB4 Verify that CB4 LED is on 8 Open source input breaker Verify that CB1 LED is off 9 Rotate the CB1 interlock key and remove it to lock out the breaker 10 Secure the key according to your site s lockout tagout procedure 11 Open output breakers CB3 and if supplied to remove power and isolate the static switch from the load Verify that CB3 and LEDs if supplied are off 12 Verify that the output LED is on Power is now flowing directly from the source to the load without passing through the static transfer switch To return to normal mode 1 Verify that the LED for Source 1 is on indicating that the source is supplying power and is operating within acceptable tolerances 2 Insert the key in the CB1 breaker interlock 3 Rotate the key to retract the interlock 4 Close source input breaker CB1 Verify that CB1 LED is on Select the SOURCE 1 button in the SOURCE XFERS menu 6 Close output breakers CB3 and CB3A if supplied Verify that CB3 and LEDs on Verify that STS SOURCE 1 and OUTPUT LEDs are on 8 Open bypass breaker CB4 Verify that CB4 LED is off 9 Rotate the keys in the CB4 interlock to extend the interlock 10 Remove th
199. system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 133 Event Message Help Text INPUT CONTACT 2 Input Contact Isolator 2 Occurrence of the indicated external event has been detected by Input Contact Isolator 2 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 3 Input Contact Isolator 3 Occurrence of the indicated external event has been detected by Input Contact Isolator 3 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert
200. t configured for AUTO automatic reset then the reset action must be done manually When the voltage is within acceptable parameters touch the RESET button on the touch screen If you are accessing the unit from a terminal type CA and press RETURN on your keyboard This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured 51 OV Source 1 Over Voltage The input voltage from Source 1 exceeded a set percentage of the nominal voltage as set in the OV Setting and OV Detection Delay set points configured under the User Settings An 51 Fail alarm was also issued and source transfer has been inhibited The load of the Liebert STS2 has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard 125 Event Message Help Text 51 OF UF Source 1 Over Frequency Under Frequency The frequency for Source 1 is running outside the acceptable operating range as set in the Frequency Trip Point und
201. tage Fast UV Setting if the voltage drops below this set percentage of the nominal voltage the Liebert STS2 transfers from the current source to the opposite source Slow UV Setting if the voltage remains this set percentage below the nominal voltage for the period of the slow detection delay the Liebert STS2 transfers from the current source to the opposite source Slow UV detection delay the number of cycles that the source must remain below the Slow UV Setting before the Liebert STS2 transfers OV Setting if the voltage exceeds this set percentage of the nominal voltage for the period of the OV detection delay the Liebert STS2 transfers from the current source to the opposite source OV Detection Delay the number of cycles that the source must remain above the OV Setting before the Liebert STS2 transfers sources I PK Xfer Lockout if current from the source exceeds this threshold the Liebert STS2 disables source transfers and has to be reset either manually or automatically The type of reset is configured under the User Settings 90 Liebert 5752 Touch Screen Display To configure the setpoints for each source 1 The Source 1 2 Set Points dialog is displayed Figure 54 Source setpoints Select SOURCE 1 2 Set Points from the User Settings dialog box Select Source Fast UV Settings Slow UV Settings OV Settings 95 I PK Xfer Lockout Amps i Save
202. ted b Ensure that the key interlocks for CB4 and CB5 have their bolts extended thus preventing CB4 or CB5 from being turned ON Ensure that the circuit breakers respective LEDs are off 2 Source input power should be applied to both Liebert STS2 inputs Check that the green LEDs for each source are lit 3 Verify that nominal input voltages are applied to both inputs Source 1 and Source 2 Check that the green LEDs monitoring the sources are lit indicating the sources are within acceptable tolerances For redundant output switch units descriptions apply to and 4 Close The green LED monitoring CB1 turns on 5 Close CB2 The green LED for CB2 turns on 6 Verify that the preferred source LED green LED PREF is lit for the source that you want the switch to be using 7 Verify that the green LED for the corresponding SCR Liebert STS1 or Liebert STS2 is lit indicating that the SCR is closed 8 Close Output Breaker CB3 and in a redundant output configuration 9 Verify that CB3 LED is lit indicating that CB3 is closed and the output and load are energized In a redundant output configuration verify the CB3A LED is lit indicating that CB3A is closed and the output and load are energized 10 Press the Reset and Silence buttons simultaneously to reset any previous alarms 11 Verify that no red or yellow amber LEDs are lit indicating an active alarm tra
203. text string nominal voltages and currents use standard numeric integers and modem baud rate uses an enumeration where 0 2400 1 9600 amp 2 19200 bps NOTE Spaces are placed between each parameter but not between characters or numbers in parameter Using an underline here to represent a space an example of a the syntax is SPT_2_6_0081 0081 is the value parameter This section provides instructions for setting these parameters with an example of building an SPT command for System and User settings Groups Parameter The setpoints are grouped for ease of configuration For example Event Masks are Group 4 and System Settings are Group 2 The numbers shown below are entered for the group parameter For example start of a System Settings command is SPT 2 The group parameters are 1 System Ratings 2 System Settings 3 User Settings 4 Event Mask Settings For example the start of a System Settings command is SPT 2 where SPT is the system setpoints command and 2 is the group parameter for System Settings See 12 1 4 Setting Event Masks with the Terminal on page 84 for instructions on configuring Event Mask parameters Item Parameter Each setting within the group is indexed by an item number as shown below in Table 11 These item numbers are also displayed on the terminal when you list the configuration setting for a particular group Continuing with the example to configure an Options_1 setting unde
204. the Liebert STS2 transfers the input to the alternate source until the problem is rectified in the preferred source The unit can be set to automatically transfer the input back to the preferred source or only allow the transfer to be done manually Transfer Inhibit For a transfer to be completed between input sources the sources must meet certain parameters or the transfer cannot take place Uninterrupted transfer between sources is inhibited due to input source failure sources out of sync switch failure or the unit is in bypass mode 58 Introduction to Liebert STS2 Operations 8 2 4 Bypass 8 3 The static transfer switch can be manually bypassed to allow the power from a source to directly flow to the output load This bypass allows the unit s electronics to be serviced without dangerous voltages being present The Liebert STS2 includes key interlocked maintenance bypass breakers that allow either input source s electronics to be bypassed for maintenance without interruption of power to the load The maintenance bypass allows all electronics to be isolated from the input output and bypass connections Bypass instructions are available from the touch screen and are discussed later in this manual Operator Controls The Liebert STS2 is equipped with an interface to configure and monitor the unit either locally or remotely The Color Graphical Display is a touch screen LCD that provides a color diagram Mimic that disp
205. the lifetime of the unit without any maintenance The integrity of the connections can be checked via infrared scanning safely from the front or top of the unit All other components including power cables and connections circuit breaker bases etc are replaceable from the front or top of the unit only but this requires all power to be removed from the unit for safety Although routine re torquing of the power connections is not required if maintenance of these connections is needed complete removal of power is required from the unit for safety reasons A WARNING Lethal voltages exist inside the unit during normal operation Only qualified service personnel should perform maintenance on the static switch The unit is supplied by more than one power source The unit contains hazardous voltages if any of the input sources is ON even when the unit is in bypass To isolate the unit turn OFF and lock out ALL input power sources Verify that all input power sources are de energized and locked out before making connections inside unit Circuit Breakers The Liebert STS2 is equipped with five molded case plug in non automatic circuit breakers The breakers are UL listed for use up to 600 VAC and CE marked The plug in feature of the breaker includes an interlock which prevents the breaker from being unplugged without being in the OFF open position Mechanical interlocks are provided on the breakers to prevent improper maintenance bypassi
206. the phase difference between the two sources Emergency transfers occur without an interruption of power to the load longer than 4 ms Emergency transfers from the alternate source to the preferred source are not affected by the Auto Retransfer Enabled Disabled or Retransfer Delay user settings Load Current Transfer Inhibit The Liebert STS2 senses the load current If the load current exceeds the preset level deemed to represent a load inrush or fault condition the unit s logic disables manual and automatic transfers even if the selected source s input voltage is outside the acceptable limits This event triggers an I Peak alarm If so configured the Load Current Transfer Inhibit is automatically reset 100 milliseconds after the current and voltage return to within normal parameters This reset provides continued protection against a source failure The Load Current Transfer Inhibit also can be programmed to require a manual reset See step 14 on page 92 under the Source Set Points heading for details SCR Failure The Liebert STS2 continuously monitors the status of the SCR switching devices for proper operation In the event of a shorted SCR on the input source powering the load the Liebert STS2 automatically triggers an alarm and trips open the other source isolation breaker In the event of a shorted SCR on the other input source the Liebert STS2 automatically triggers an alarm and trips open the other source isolation breaker
207. the unit is located on a raised floor If the input junction boxes will be used they may be shipped either with the unit or in advance to be installed during the rough in stage of construction Locate the junction boxes a maximum of 8 feet 2 4 meters from the planned location of the Liebert STS2 Due to a lack of clearance for the cables below the unit the cables are also shipped loose from the unit for installation at the site The input cables connect from the input junction boxes to the input power bus bars inside the Liebert STS2 The standard configuration for the input junction boxes and cables is for 3 wire plus ground feeds If the input neutral is required special 4 wire plus ground input cables and junction boxes are required See Figure 29 for wiring details 10 Power and Control Wiring For preparation purposes the following tables provide the dimensions and wire sizes for the input junction boxes Table 3 Input junction box dimensions Length Width Height Switch Rating Inches mm Inches mm Inches mm 100 amp 16 406 14 356 6 152 250 to 600 amp 30 762 16 406 6 152 Table 4 Input junction box terminal wire size range Switch Rating Power and Ground Lug Wire Range 100 amp 6 to 2 0 AWG 250 to 600 amp 2 6 AWG to 2 500 kcmil 11 Power and Control Wiring 53 System Grounding Equipment grounding Grounding is primarily for equipment and perso
208. tial area may cause harmful interference that the user must correct at his own expense WARNING Locate the center of gravity symbols 4 and determine the unit s weight before handling the cabinet OVERVIEW OF MANUAL The Liebert STS2 Installation Operation and Maintenance Manual is organized in a logical progression so that you can follow the procedures in the order provided to get your Liebert STS2 installed and running Read the entire manual before proceeding with the unpacking and installation of the Liebert STS2 The major sections are as follows Important Safety Instructions review the instructions on the previous page before proceeding Support Information a blank table in which you can enter pertinent data such as the serial and part numbers needed when calling Emerson for technical support Programmable Relay Board Settings Record a blank table in which you can document your Programmable Relay Board settings Input Contact Isolator Settings Record a blank table in which you can document your Input Contact Isolator settings 1 0 Safety Precautions provides safety warnings that you must review before proceeding 2 0 Unpacking and Inspections provides instructions for inspecting unloading handling and removing the Liebert STS2 from the shipping pallet 3 0 Location Considerations provides information regarding environmental considerations for where the Liebert STS2 is installed 4 0 Loca
209. ting the Liebert STS2 provides instructions for leveling the Liebert STS2 and anchoring the unit to the floor should that be required 5 0 Power and Control Wiring provides instructions wiring the Liebert STS2 for power and control connections 6 0 Options lists the options available for the Liebert STS2 7 0 Installation Drawings provides outline seismic and electrical field connection drawings required for installing the Liebert STS2 8 0 Introduction to Liebert STS2 Operations provides a system description 9 0 Theory of Operation provides an overview of how the unit works plus a brief overview of some of the components 10 0 Operating Instructions for the Touch Screen Interface provides instructions for turning the system on and off completing a maintenance bypass and selecting a preferred source 11 0 Alarm and Faults provides a list of event messages 12 0 Communication Interfaces discusses the communication ports and provides a list of terminal and modem commands 13 0 Liebert STS2 Touch Screen Display provides instructions for using the HMI touch screen interface for monitoring and managing the Liebert STS2 14 0 Operating the Liebert STS2 LED Display provides instructions for operating the LED Display unit without the touch screen display 15 0 Specifications provides specifications for the Liebert STS2 16 0 Event Message Help Text provides the help text for the various
210. tory Log has the following fields Replay Rate indicates how long it takes for the replay to play Use the UP and DOWN buttons to set the time Status the status of the Liebert STS2 at the point of the current frame in the replay The History log has three statuses Frozen Not Frozen and Retrieving Data please stand by Critical Event The event which triggered this log to be written The event is indicated in red on the bar graph Frame Number the current frame in the replay A negative number indicates the replay is at a point before the triggering event occurred Alarm Notes The I PK on Source 1 and I PK on Source 2 alarms inhibit automatic transfer due to an overload or load fault These alarms can be set for either auto or manual alarm reset In the auto reset mode the alarm is reset 100 milliseconds after the load current and source voltage return to normal and transfers are no longer inhibited In manual mode the alarm remains active and transfers are inhibited until the conditions return to normal and the user manually presses the RESET button ALRMRST button on LED units In either case the cause of the Source 1 or Source 2 I Peak overload should be investigated and resolved such as by reducing the overload condition or clearing the output fault before returning the switch to normal operation SCR fault events indicate a device failure The device must be replaced and the system must be restarted for the fau
211. tory logs DATE Displays current system date DATE Sets system date EL Displays the entire event log HELP Displays this help menu or specific help with a command HLn Displays the history log n if frozen LOGOUT Logs user out of unprotected mode PS Displays the preferred source PSn Sets the preferred source to n PWD Allows users to access protected commands QUIT Modem only Ends the session and hangs up the modem SH Silences the horn SPT Displays all current setpoints Displays current setpoints for group x See 12 1 2 Configuring the Liebert STS2 via BET the Terminal for a description of groups SR Displays status reports TIME Displays current system time TIME Sets system time UPMDR Displays metering data VER Displays firmware versions 77 Communication Interfaces 12 1 2 Configuring the Liebert STS2 via the Terminal The SPT command is used to configure the systems setpoints The SVT syntax for the setpoints consists for four parameters SPT group item value where the parameters are SPT is the terminal command that is used to configure setpoints group the group under the setpoint command which contains the desired settings item the item number within the selected group value the desired value for this item Only the specific options words listed in this section use a hexadecimal value Other settings depending on what they are use other input types For example System ID uses a
212. tt pe 102 Sov DLE DP INVI Vena mE Did dune siu 102 Cleaning the LCD Touch 102 iii 14 0 OPERATING THE LIEBERT STS2 LED 5 103 14 1 LEDs and Buttons and Key Lockout 103 FLLI Front Panel aunt Rani hs enw Rak RERO detecte lee 103 14 1 2 LED and Push Button Description 104 HES Even Controls exo Sh us e Ute eye C Awa Ra 105 FELA Key Lockout Switch rc Wa e Rap PR Me pae wad beers 105 14 22 Operations sius s tesa pe hpa Dah bagus wid ss oad PA 106 14 2 1 Normal System 106 14 2 2 Manual Transfer Preferred Source 107 14 2 3 Maintenance Bypass ROUGE eek hee 108 14 2 4 Normal System Shutdown a Reg wes E e Y 110 15 0 SPECIFICATIONS a EY 111 15 1 System 111 TS a Ee 111 19 12 Input OutputVoltaces oS RERO QU E S E a RON E 111 15 1 3 System Current
213. uidelines should be reviewed for any special equipment modifications special site conditions or company policies that may require changes to the standard equipment operation All programmable functions are preset at the factory to enable the unit to be brought up without the need to enter all selectable parameters This section refers to the LCD touch screen display This display is discussed in more detail later in the manual See 13 0 Liebert STS2 Touch Screen Display NOTE If the front panel of your Liebert STS2 has LEDs and push buttons instead of the touch screen interface refer to 14 0 Operating the Liebert STS2 LED Display for operating instructions See Figures 14 19 for circuit breaker locations 64 Operating Instructions for the Touch Screen Interface 10 1 Normal System Startup NOTE If your Liebert STS2 is connected to a PDU with a Wye configuration enable the Wye Output Transformer before starting the system This setting can be made from the touch screen Refer to Wye Output Transformer on page 100 for instructions 1 Ensure that all Liebert STS2 breakers CB1 CB2 if supplied CB4 and CB5 are in the OFF position a Ensure that the key interlocks for CB1 and CB2 have their bolts retracted Ensure that the key interlocks for CB4 and 5 have their bolts extended thus preventing CB4 or 5 from being turned ON 2 Source input power should be applied to both Liebert
214. urce the Liebert STS2 does not have a second source to switch to and the load would not receive power See Maintenance Bypass on page 67 for bypass instructions If your system contains the LED front panel instead of the LCD touch screen refer to 14 2 2 Manual Transfer Preferred Source Selection for instructions on this procedure Figure 46 Source transfer screen PREFERRED SOURCE 2 A B B C C A 195V 1954 195 DA OA 0 0 ALTERNATE RESET SILENCE SELECT PREFERRED SOURCE 30 0 30 EFS ET Source 1 leads Source 2 by 3 5 deg SOURCE 1 SOURCE 2 SOURCE XFERS STARTUP PROC BYP PROC HELP LOGO LOGS 66 Operating Instructions for the Touch Screen Interface 10 3 10 4 To manually select the preferred source 1 Verify that the input breakers CB1 and CB2 are closed 2 Select SOURCE XFERS from the menu bar The Select Preferred Source screen is displayed in the Event Display 3 Check the Mimic to verify that Source 1 and Source 2 input voltages are correct 4 Select SOURCE 1 or SOURCE 2 as your preferred source When conditions are correct the switch transfers the load to the alternate source by selecting the alternate source as the preferred source This source is now monitored as the preferred source throughout the various configurations set up through the touch screen 5 Verify that the correct source is designated as the preferred source an
215. ut source selection alarm reset and alarm silencing are done through buttons on the touch screen or push buttons with the LED display Communication options can be installed in the Color Graphical Display LCD unit only These options provide external communication with the Liebert STS2 through a modem a network card a programmable relay board a contact isolator or an RS 422 port to Liebert SiteScan Redundancy Redundancy within the Liebert STS2 prevents one component from being a single point of failure should a problem occur Redundant circuits and components are used to eliminate single points of failure Since the Liebert STS2 has two input sources no single component failure can cause a loss of power to the load Redundant power supplies are provided which feed a DC dual bus used throughout the unit to prevent any single point power supply failure modes Three separate redundant control logic modules are built into the system Each contains the logic necessary to run the Liebert STS2 and control all transfers Redundant fans are provided if a primary fan fails The redundant fans turn on to prevent overheating inside of the unit Should the front panel interface fail either touch screen or LEDs the control logic continues to operate and the unit would transfer should a problem be detected on the preferred source Information on the monitoring parameters would be available through the remote communication options if available
216. uture events Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the Liebert STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard HIST LOGS FULL History Logs Full The history buffer has reached its capacity for both history logs No further history logs can be written until the logs are cleared The History Logs were frozen by the occurrence of two designated faults or alarms Both history logs have been frozen by significant events These logs contain valuable diagnostic data regarding those events which may be useful if service is required Once the logs have been analyzed and the causes for freezing them have been resolved the history logs should be cleared to make them available for capturing future events To clear the History Logs select the CLEAR HLOG button under the LOGS gt HISTORY LOG 1 or LOGS gt HISTORY LOG 2 menus to clear the History Status buffer after the alarms have been resolved If you are accessing the unit from a terminal type CHL and press RETURN to clear the History Logs Press SILENCE on the touch screen to turn off the audi
217. y active you must first transfer to Source 2 See Manual Transfer Preferred Source Selection on page 66 1 Verify that Source 2 is supplying power via the Mimic Ifthe Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 47 Remove the interlock key from CB4 and place it in the CB5 interlock Open the alternate source input breaker Rotate and remove the CB1 interlock key Insert the key in the CB5 bypass breaker interlock Rotate the interlock keys in the CB5 bypass breaker interlock to retract the interlock Close bypass breaker CB5 Verify the breaker status on the Mimic screen Open source input breaker CB2 Rotate the CB2 interlock key and remove it to lock out the breaker Secure the key according to your site s lockout tagout procedure Open output breakers CB3 and if supplied to remove power and isolate the static switch from the load To return to normal mode Insert the key in the CB2 breaker interlock Rotate the key to retract the interlock Close source input breaker CB2 Verify Source 2 and CB2 breaker status on the Mimic screen Select the SOURCE 2 button in the SOURCE XFERS menu Close output breakers CB3 and CB3A if supplied Verify CB3 and CB3A breaker status Verify that STS SOURCE 2 and OUTPUT boxes are highlighted on the Mimic screen Open bypass breaker CB5 Rotate the keys in the 5 interlock to extend the interlo

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