Home

Liebert POWER PROTECTION STATIC TRANSFER SWITCH User's Manual

1. Table 9 Event Messages ID Alarm Message Description Cause Action 024 CB2 SHUNT TRIP FAIL CB2 shunt trip failed D A E 064 HEATSINK OVERTEMP Heatsink has exceeded the recommended temperature 067 51 UV Source 1 under voltage fast detection 068 1 UV RMS Source 1 under voltage slow detection LA E 069 51 Source 1 over voltage A E 070 51 OF UF Source 1 over frequency under frequency 071 S1 FAIL Source 1 failure A E 072 S2UV Source 2 under voltage fast detection A E 073 S2 UV RMS Source 2 under voltage slow detection 074 52 OV Source 2 over voltage A E 075 S2 OF UF Source 2 over frequency under frequency 076 S2 FAIL Source 2 failure A E 077 51 OVERCURRENT Source 1 over current A E 078 S2 OVERCURRENT Source 2 over current A E 079 51 I PEAK I PK on Source 1 080 52 1 I PK on Source 2 081 SOURCES OUT OF SYNC Source 1 and Source 2 are out of synchronization A E 082 LOAD ON ALT SOURCE The output load is running on the alternate source A E 083 AUTO REXFER INHIBIT Automatic retransfer is inhibited A E 084 CB1 S1 OPEN Source 1 Circuit Breaker 1 is open 085 2 52 Source 2 Circuit Breaker 2 is open A E 086 CB4 S1 BYP CLOSED Source 1 on bypass Circuit Breaker 4 is closed 087 CB5 S2 BYP CLOSED Source 2 on bypass Circuit Breaker 5 is closed 088 CB3 OUTPUT OPEN Output circuit breaker
2. 110 Tos ote PART N alsa 110 19 42 Input Output Voltage y s Mss Qu 110 15 1 3 System Current Ratings ioe U T S rere eerte e bi prep secre TE Sce PD dos 110 Groundin os o ayu fee e o W EAR eta Mi ee ue DR M lets a Ret S s w LEA qnod Dae 111 15 1 5 Electrical Requirements 111 15 1 6 Input Surge Suppression 111 LT Response smy uya a a les Cue ole e Ree de a e Ut addu q 111 15 1 8 Environmental Requirements 111 15 2 System Componentan 5 seen Date ea OA a MM CAE We es RO ae 112 15 2 1 and Enclosures ce ELE CERO eR e OR Ue Veteres 112 15 2 2 Castors Leveling and Seismic Anchoring 112 wih eek heen ie cen rotor il ooh etd me akapa Gite erect 112 15 NE UU PP nde aa ee a af ache awu att cs omen 113 15 2 5 Circuit Breakers t ete Pet ie Gye tesa a IA Melina es 113 15 2 6 Cable Entr nce o eet toG RD e eer ae ater desta ae Rer oda 113 15 2 7 1 etr RR ceret CE el eid T ak SS ductu e 113 15 2 8 Color Graphical
3. 8 4 2 Leveling of the 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 sesei pce Reus ae o A Eee Dania scl Mea ee a a gre 11 5 4 Control Wiring Connections 11 5 5 Remote Source Selection 12 5 6 POWER Oupply 2 e CA s D e 12 6 0 OPTIONS 5254 oS LIA DEO COITU ELLE IE RT CE NCC ILE 13 6 1 Programmable Relay 13 6 2 Optimized TLranster es E Oe Ce E eee VR RR E ZS NN 13 6 3 Distribution Cabinet With I Line Panelboard 100 600A Units Only 14 6 4 Input Contact Isolator 14 6 5 Comms cba set dade Moe sedo ded uha corda Pero ieee 14 6 6 Internal Modem 25 44 624 Ei A eb REN VPE e REOR SEP A qud 14 6 7 Network Interface Card 15 6 8 WED Display ow gonere
4. 0 SALON 335 r 310H ONILNNOW 1 WWZL dAl SZZ 8 69 15 Yad W49 00S L L LINN SHL dO LH9I3M AHL LYOddNs OL ANYLS HOO 14 3H L NO 1534 LSNW SH31SVO JHL GASN SI 15 HOOT dl 3SV8 LINN HLVANYSGNN S310H ONLLNNOW LINN AHL OLNI GHQV4YHL LSNW 17109 ONILNNOW GNV LS HOO TH HO 9NIHOHONV OIINSI3S v TIv L3a 446 SATOH ONILNNOW G3QV3HHL SZXSZX L 3ZIS d318VSOdSIG MALTA OL HOOG N3dO 31IHM 440 WAI HO 109 SNFIINVH TVOLLHSIA dO 93G SL NIHLIM L3NISVO d33 SNFIINVH L3I DIO 31vnoadv ATIVENLONYLS SI WOLLOS LINN v L1 891 008 LHOI3M HOLIMS 0001 60S HH 18 06821 HOLIMS V008 6079 1 08261 114100 LV3H ALIAVHO 131N3O 10 0 9961 HOLIMS H3JSNVH L 15 NOILdO HOLIMS 4 ASM 0001 008 SNIMVHQO ANITLNO WINNZL 96 so IWO LLOS vel Hon 2661 0811 8 v zzi 0 D 912 098 899 WOLLOS 269 0 62 Su31N3O 318VO TONLNOD H81SVO WOLLOS 318VO H3MOd 080 V IIVL3G 33S SH3l1N3O 29 ualsvo r 6 LY alil 908 LON OG LNOJ 0 88 996
5. x a iO IO ciui ur PS 09 O Altitude Feet Table 2 Altitude conversion feet to meters Feet Meters Feet Meters 4000 1200 7500 2286 4500 1372 8000 2438 5000 1524 8500 2591 Altitude 5500 1676 Altitude 9000 2743 6000 1829 9500 2896 6500 1981 10000 3048 7000 2134 Locating the STS2 4 0 LOCATING THE STS2 This section provides instructions for leveling the STS2 and anchoring the unit to the floor should that be required For leveling feet details see Figures 5 through 10 4 1 Leveling and Anchoring the Unit to the Floor The 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 STS2 and are shipped separately from the unit when ordered See Figures 11 through 13 for instructions and details for installing seismic anchoring 4 2 Leveling of the Static Switch Without Anchoring The Static Transfer Switch 18 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 4 3 Leveling and Anchoring the Static Switch Using Floor Stand The STS2 can be installed using the optional floor stand to support the unit instead of using the raised floor The STS2 can be rolled or placed using
6. 1004 919 91 LAN 1004 H3T3 31 S IL332V88 HHddf 2515 dO M3IA ACIS LHOISH 13 2515 T uvas S IIVL3G 00SLZSd ONY Z00SLZSd 0008LZSd S MA 33S ALON INOHJ l3M0VH8 2515 m H3ddn 1 4 515 V0SC 00L aNYLS HOO 14 OIINSI3S SNIMVG NOLLV TIV LSNI 1 ONILNNOW HLIM QONV LS HO MIA 9ld 1 4 H3HSVM 1713 H3HSVM 1148 G4 L ZLIN MANOS dvo Sa0V1d I330VH8 2515 uva SLAMOVEE HLIM 2515 dO WOLLOE l330VH8 2515 HV3H Adis v3 ZLW H3HSVM H3HSVM 201 1185 WIAOPXSZ L ZLN MIYOS dvO s3ov1d 1 33S ZLIN H3HSVM 1V 14 H3HSVM 3201 11148 IWWOTXSZ L ZVW MANOS s3ovd I390VMH8 2616 YAddN LNOJ 46 Installation Drawings Figure 35 Installation drawing seismic floor stand 100 250A 0 es c00SLcSd Il3 90VH8 LNOH3 H3MOT1 H3HSVM ZLA H3HSVM 901 11148 WWOPXSZ L ZLI MIYOS s3ovid 2 OLN H3HSVM LV14 OLN H3HSVM 4201 LMdS WINOEXS L 0LIN MANOS s3ovid 2 M3IA 5 SLOTS L3340VH8 SV3H H3MO1 OLNI SIS Ol S8V L L3340VH8 H3ddn 2515 H3MO T1 HV3H LAMOVYE 2515 H3ddf HV3H S IIV L3G 60081284 L00SLZSd 0000 054 S
7. LNOHJ XO T LON Od M ALIAVHO WUlN3O 19 wings Installation Dra lon 100 250amp STS2 with a key lockout switch opt Figure 8 Outline drawing ON 10111254 HOLIMS SH3JSNVHS L 15 NOILdO HOLIMS 16103901 ASM HLIM 08 004 NIA dOL sz 2081 ONIMS HOOQ XVI 0893 3190 10H1NO9 TANVd 3415 NMOHS LINN dO AH LN3 dOL H3MOd W3T3A31 c 6l 0 SALON 335 310H ONILNNOW VIC WWZL 5 2 962 LINN JHL dO 1 JHL LYOddNs OL QNV LS HOO NO 1534 LSNW SH31SVO JHL 038181 GNVLS HOO 41 3SV8 LINN HLVANYSGNN WO H4 S310H ONILNNOW LINN SHL 01 1 LSNW S1709 ONILNNOW GNVLS HOO TJ HO 9NIHOHONV OIINSI3S SHV v TIv L3a 33S SATOH ONILNNOW G3OV3HHL SCXS2X 3215 318VSOdSId 91715 IV OL N3dO ALIHM 440 Y07009 STIHM WOILYAA dO 3d SL NIHLIM L3NISVO daa ONITGNVH 141104 31vno3av ATIVYENLONYLS SI NWOLLO LINN S81 082 LHOISM HOLIMS V0SZ XVN HH MMM 2671 YH NLA 0899 HOLIMS VOOL HOS HH MM 0870 HH R L8 0LZZ 114100 LV3H ATNO LNOH NI GAYINDAY SS399V SOIANAS NOILVTIVLSNI 1SnVHX3 GAYINOAY LINN 3AOSV SONVYV3TO NIIN NINZSE 84 SYALAWITHW S
8. 23 wings Installation Dra 400 600 amp STS2 ing hor draw Ismic anc Figure 12 Se 3NI130014 0 ed GOVLLeSd HONI SZ XOUddV ANY 13418 010 38V SL33OV88 3SV8 LANISVD LNOHJ S1330V88 HOO TJ 1 4 ANY 8 Iaainoas SI TIVM 4015 WOS3 SONVLSIG WAWINIW HONI 079 LN3S3Sd STIVM 3016 dl 2 6914 UN 8792 NI 81S 2 OL 30080 G3lddns S130 V8 L3NISVO 1 4 OL SLAMOVYE 1 4 TIVLSNISY SS390V Y31139 GSAOWSY 38 NVO LINN SL3MOV28 HOO 1H TIVLSNI S139 V3l8 SAOWSY SNOLLVOOT 310H YYW 9 ATINA LON OG 108 L339V88 3SV8 L3NISVO 1 4 OL S130 V8 YOOTS 1 4 HOV LLV 27914 1340 v8 HOO 14 2 1 18 41 LY 1 OL SYL L330V88 HOO T3 SLOTS OLNI S8V1 NOLLISOd OLNI L3NISVO SAOW S 9 3311914 133OV38g HOO 14 INO34 aaridans LON 3HVMQOSNVH YOHONV 14 l1340VH8 HOO T3 NV3H Garidans LON 3NI14H0014 HOO 13 e ke dalddNs l3NI8VO l340VMH8 3SV8 13NI8VO 40 HOOQ LNOws TIVM yovga 1NO 4 l13MOVH8 3SV8 LANISVO q3sn93 SI L349V88 YALAV N31H9ILL ANY LAN 9ND1901 L108 SNITJA31 N3S001 ILON UIN 217 81 996 OL 30030
9. 6 1 161 006 GSAOWSY ST3NVd LNOSJ LNOYS go og ao vo 104100 WALSAS sna WHLNAN 999 yao 89 20 80 VS LNdNI SOWNOS 20 80 0 05 MIA 3dIS LASIN MIA 15084 Sna 1 dij 808 LAN Wad 19 1 2 1 en 6 1 CLT 061 312 rv 060 28 wings Installation Dra 400 600 amp STS2 with dual output breakers Figure 17 Electrical field connections drawing LOvZLoSd Sais V V NOILO3S INVHOVIO 3NIT HNO 104100 WALSAS 1 2 2 999 C 5 28 ggo vedo vdO C eXo Y Y Y tolo elo A cdo 199 3oHnos 5 509 IYYLNIN LNdNI JOYNOS 8 LNdNI L SOWNOS V JOWNOS WEN 89 SH 82v SI SLAN Wad LN3IN3SIQO38 300801 JHL 7 Suva SN OL S3 18VO ONILOANNOO SLAN SH3HSVM 51108 2 SAGMONI SNOLLO3NNOO 318VO ANNOYS ANY LAdLNO LAdNI SI 9 53000 WOIMLO373 1V201 o H LIM 39NYQAY099Y NI 38 OL SI TIY S 2 1 3aNaWiWOO38 LON 3 18VO Y3ddO9 ANY WANIAINTY t S318VO INO LINGNOO 3 1 V8Vd3S V NI NOH 38 Q InOHS Sd 18vO 114100 LIndNOO 3
10. 79 Binary Hexadecimal Conversions 82 Set Point Parameters ette tr ti et ae 91 Standard Settings for Programmable Relays 97 LED and push button description 104 Input Output Voltage us 6 REESE E SEU CES I ue UN UR Pe ES 110 System Current Ratings rss EE VER pr UR RE RETIA SERE EVE E ER An 110 Electrical Requirements 111 Unit Short Circuit Withstand Capability 111 FraieSiZes d sis ag a a ate e E aa ke RR A NU alae Weigh ere a 112 Plug Pinot een c EVE nk et OR RR PER 114 PIB OS 21 51 w etim e ah e eU Sr Tap ERR DO 114 Ro 232 rend asta D etant cds Bleue d au ong E ED edes 115 d orque tiehtent g un ot ot re te de te o e M 137 vi IMPORTANT SAFETY INSTRUCTIONS Save these instructions This manual contains important instructions that should be followed during the installation and maintenance of the Liebert Static Transfer Switch 2 STS2 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
11. 1 8 69 1SnVHX3 Yad W49 008 LINN JHL dO 1 JHL LYOddNs OL GNVLS NO 1688 LSNW SYALSVO qasn SI INVIS HOO HI SVE LINN HLVANYSGNN WOYS S3 10H ONILNNOW LINN 3H L OLN Q3QV3HH L LSNW SL 108 ONILNNOW GNVLS HOO TJ HO 9NIHOHONV 21015195 GACIAONd v TIv L3a 33S SATOH ONILNNOW 03 SZXSZX L 3ZIS 318VSOdSId 91715 HIV OL N3dO ALIHM 440 3TIHAA dO 93G SL NIHLIM L3NISVO d33 SNFIINVH 141104 31vn030v ATIVYNLONYLS SI WOLLO S81 009Z LHOISM HOLIMS 0001 XVN HH MM 6079 YH NLA 066 1 HOLIMS 008 HOS CHH MM 6079 YH N L 08 6 114100 1 v 1 4 NI GAYINOAY SS329V SOIANAS ANY NOLLVTIVLSNI 2 L 800 1000 amp STS2 1S0 vHX3 GAYINDAY LINN 3AOSV NIN 81 SYALSWITHN S3HONI NI 38V SNOISN3MWIQ 17 541 Figure 7 Outline drawing ALIAVHO W3IN3O Lee 9 8 WOLLOS JJH 86 V IIV13Q0 33S 024 9961 l3NIS8VO HOLIMS SH34JSNVH L Ol LV1S dV 0001 008 SNIMVG 3NITLOO L vel 2661 099 WOLLOS 318VO lOHLNOO WOLLOS 99 091 Zs 1NO33 6811 59431339 HalsVO
12. IHL HO LNOYS 3H1 9NIOVJ 39NV 14 LN38 HLIM S310H SNILSIX3 ONISN GNVLS HOO 1H JHL OL L340VH8 2515 H3MOTMSV3S TIVISNI NOLLVTIVLSNI OL 1 H3dOMd 11 I i i 5 1NONJ SALON NOILYTIYLSNI BE Z X YIA S 9 49 Installation Drawings Figure 38 Installation drawing seismic floor stand 400 600A L009L Sd I330V88 ONILNNOW 83MO 1HLIM QNV LS HOO 14 dO ACIS 1 vols l340Vug H3MOT13V3H 1004 LAN 1004 S1330V88 Y3ddN HLIM 2515 dO M3IA 3GIS 1 2914 l3M90VMH8 2515 HV3H lt uva 9 STIV L3Q 009L2Sd ANY 20091284 0009LZSd S MA 33S 31ON 515 Y3ddN 1NO 4 1 ONILNNOW YIMO1 HLIM QNV LS dO dOL 9l3 1NO 4 S3HSVM LV14 ZLA H3HSVM 201 11148 GZ L ZLIW MANOS s3ovd Il3M0VMH8 2518 H3MO T NV3H V uvas SLAMOVYE HLIM 2545 dO M3IA INO LLOS 25156 V3 3qIS SSHSVM LV14 ZLIN H3HSVM 1 MIYOS s3ova 33S ZLW H3HSVM 1V14 ZLA H3HSVM 11148 WWOPXSZ L ZLW MANOS s3ovid Il330VMW8 2515 LNOYSA 50 Installation Drawings Figure 39 Installation drawing seismic floor st
13. TIv L3d 33S 654 ONILNNOW Q3QV3HHL 42 882 3ZIS 318VSOdSIG 1114 OL N3dO ALIHM 440 Wal SNFIINVH 3TIHAA WOILYSA dO 930 8 NIHLIM L3NISVO d33 ONITGNVH L3I TIO 31 vnoaadv ATIVYENLONYLS SI WOLLOS Sg1002I LHOI3M HOLIMS V009 HOS XVN 8076 02801 HOLIMS V00r HOS CHH MM YO Z HH D L8 0769 114100 LV3H ATNO LNO3H4 NI GAYINOAY SS399V 5 ANY NOLLVTIVLSNI LSnVHX3 sl V GAYINOAY LINN 3AOSV 3ONVHY3TO NIIN NINZSY 8L SYSLAWITIN SSHONI NI SHV SNOISNAWIG TIY 00 o0 TN ODT SALON dol WWZL d18vOgsc YAMOd SuaiN30 L 331SVO v64 981 WOLLOG 33S J18VO lOHLNOO MAIA 3GIS 991 33114 LON OG IV D ALIAVHO 0 9961 ALIAVES n H3IN3O 818 896 18 wings Installation Dra Aad 00811254 dAL 8552 gen dOL 999 z Sa 5 dAL 08 9NIMS NHOOQ 22 69 AHIN3 dol 318VO9 H3MOd 962 TANVd ACIS LNOHLIM NMOHS LINN dO dOL IOHLNOO 1SNYHX V 0 SALON 339 dAL t 3 1OH ONILNNOW dAl 9
14. To use the Event Log 1 Select LOGS from the menu bar to open the Logs menu 2 Select EVENT LOG from the menu 3 Use the UP and DOWN buttons to scroll through the event list 4 Select OK to close the Event Log The data remains in the log History 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 x choices in the LOGS menu See 11 2 2 History Log for more information on the History Logs and definitions of the fields dis played in the History Log screen Figure 62 History log 0 fe sec EN soe meer _ CLEAR 101 STS2 Touch Screen Display 13 6 3 13 6 4 13 6 5 13 6 6 13 6 7 13 7 To use the History Log 1 Select LOGS from the menu bar 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 S
15. 683 GSAOWSY STANVd LNOYS HLIM MAIA LNOYS 882 JO G8 VS ANdNI 2 3930DS 31484199 104 T 334105 ASIA STS INR up gi IDE Ina na UNOS 06 CLI SLT SLT LAN Wad l 2 1 AD 16 31 Installation Drawings Figure 20 Circuit breaker schedule ON 3 000r L2Sd HOLIMS H3JSNVH L 15 490001 OL dNYOOL AINGAHOS H3 V3H8 LINDYID 3svo dad OI HOLIMS OILVLS AHL HO AYsAdWV AHL NVHL 5841 OL IWNDA ALIOVdIAV SAVH GINOHS NOILOALOYd LNAYYNDYAAO WVAYLSd N NOILOALOYNd ACIAONd OL GASN 38 LSNW SH3HLO S39IA3Q WVSUYLSdN Z XINO 4141 OILANOVW H LIM GALVY OVA009 310d SH3XV3H8 3SVO SILVNWOLNV 2515 JHL L IN3MWno QNV LSH LIM A009 AO8v 08 AOvc 00c A009 A08T 08 AOvc 00c A009 08 AOvc 00c A009 08 AOvc 00c A009 08 AOvc 00c A009 08 AOvc 00c EN EN SALON SEDES ALIOYdA NY HOGN3A ps J INGSHOS H3XV3H8 3S VO Q3Q 10N HOLIMS H343SNVMH I OILVLS 32 Installation Drawings Figure 21 Control connection location diagram 100 600 amp STS2 0008 LcSd NOILdO 39VJH3 LNI W3GOW TWNYSLNI ANY TIVNH3LX3S NV
16. 800 1000 amp STS2 with dual output breakers Figure 19 Electrical field connections 989 4 99 ead 10801654 INVHOVIQ 3NIT 3NO 104110 WALSAS 1420 C d x N 3ounos vn Salles go 3930OS sna 3 9 1 dNI I 33930D 8 T 299005 V T 3330D U N 87 581 888 SI SLAN Wad 6 1 2 LNAWSYINOAY 300801 IHL 7 Suva SNE JHL OL S318VO ONILOANNOO YOA SLAN ANY SH3HSVM 51108 IANTONI SNOLLO3NNOO 3 18VO QNV IVHLOSN LAdLNO LNdNI SI LA 38VAMGSHVH 9 53009 TVOIHLOd T3 WOOT NV TVNOLLVN 3ONVQ3OOOV NI 38 OL SI 11 S g3auNaWiNOO38 LON S318VO Y3ddO9 ANY WANIAIN TY r S318VO LNdNI LINGNOO 31VNVd3S V NI 38 5 537199 Lnd1nO LIndNOO 31V8Vd3S NI NOY 38 LSNW ONISIM ANY SNIHIM TOS LNOO gov das ANY AZIS LINGNOO LINS OL HONNd SAOWSY S31V ld SS300V 3 18VAOW3H 3 T8V IIVAV AH IN3 318VO INOLLOS8 ANY 2 SYALSWITIW SIHONI NI SNOISN3IAIQ TV SALON Ta 009000060000 DA Do o0 0a po ao S S VV NOLLO3S A3IA 3 IS LH9I3 SNE WALAIN dAl 5 60 dA SLT o a O d a 00000000000 10043 sna 82 19490 1041 15 5 SNE 049
17. 3 0 Hz The default setting is 0 5 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 3 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 10 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 pre ferred source after that source 18 restored Select YES to enable
18. The alarm is latched and must be reset 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 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 S1 Fail alarm was also issued and source transfer has been inhibited The load of the 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 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 124 Event Message Help Text S1 OF UF Source 1 Over Frequency Under Frequency The frequen
19. 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 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 CB1 S1 OPEN Circuit Breaker 1 for Source 1 Open Circuit Breaker 1 is not closed CB1 is only assigned to Source 1 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 the STS2 system from a terminal type SH and press RETURN on y
20. 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 The System Options dialog box is displayed An option is enabled by selecting YES An option is disabled by selecting NO Figure 60 System options System Options Dual Output Breaker 2 PDU 9 4 Pole Transfer Switch Ed 5 Shunt Trip 2 Wye Output Transformer 9 Remote Source Select 2 Save Cancel Dual Output Breaker This selection 18 set at the factory The choice 18 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 18 set to NO PDU This selection is set at the factory This setting allows the LCD to draw the Mimic accordingly and display PDU specific metering and alarm information 99 STS2 Touch Screen Display 4 Pole Transfer Switch This selection is set at the factory to indicate whether the system is a 3 pole or 4 pole unit 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
21. 1 Turn off the load equipment per manufacturer s recommendations 2 Open CBS 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 STS2 Shutdown in Maintenance Bypass Mode When the Static Transfer Switch is operating on bypass 1 Turn off the load equipment per manufacturer s recommendations 2 Open the bypass switch CB4 or CB5 to turn off the static transfer switch output 3 completely de energize the unit turn OFF the power to both inputs to the STS2 70 Alarm and Faults 11 0 ALARM AND FAULTS 11 1 Alarms and faults are events that are triggered when the operation of the static transfer switch falls outside of the defined parameters These events can also be triggered by user actions such as chang ing 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 STS2 monitoring system detects and annunciates a comprehensive set of fault and alarm condi tions Faults and alarm messages are can be viewed on the LCD touch screen or via the RS 232 port On the LCD to
22. 52 UV Source 2 Under Voltage fast detection The input voltage from Source 2 dropped below a set percentage of the nominal voltage as set in the Fast UV set point under the User Settings An S2 Fail alarm was also issued and source transfer has been inhibited The load of the 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 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 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 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible
23. All control and logic components are mounted separate from the power components The STS2 is designed to minimize the exposure of hazardous voltages to allow safe servicing of the unit while the load 1s energized All electrical components requiring normal maintenance are replaceable without de energizing the load as long 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 avail able 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 Global Services service technician should thoroughly inspect the unit to ensure it 1s properly installed and its operating parameters are properly configured Once the STS2 is properly installed you as the on site operator can easily monitor the unit s opera tion utilizing the touch screen or LEDs If you need assistance or have questions you can contact Liebert for technical support at 1 800 LIEBERT 800 543 2378 Modes of Operation Normal Preferred Source Under normal operating conditions the STS2 routes power from the pref
24. N Q 0 Sao Cg OO 82 8 C vedo veo W go 199 z dounos 5 9 LAdNI 58 8 LAdNI 5 5 U N 89 587 809 SI SLAN Wad LNSAWSYINOAY 300801 3HL 7 SUV SNE FHL 01 318VO ONILOANNOO SLNN ANY SH3HSVM 51108 SHGNTONI _ SNOILOANNOO 319 IVH LO3N LNdLNO LAdNI SI LIA SYVMCYVH 9 53003 TvOl319313 WOOT ANY IVNOLLVN 39NVQSOOOY NI 38 OL SI TIY S g3aNaWiWOO938 LON 3 18VO WANINNTV Qv 19 t 54189 LAdNI LIndNOO 31V8Vd3S V NNY 38 a moHs S318VO LNd LNO LINGNOO 31Vvsvd3s NI 38 LSAW H3MOd ANY SNIHIM TOHLNOO 30v 1d38 IZIS LINGNOO LINS OL HONNd SAOW3M 531914 SS39OV d 18VAOW3MH 3 18V IIVAV AS LN3 318V9 WOLLOS ANY dOl 2 SYSLAWITIN S3HONI NI SNOISN3IAIC TTV L SALON MAIA 2015 V V NOILOAS 508 WHLNAN o0g ao vo 104110 WALSAS ego 99 go o0g ao vo 5018 WaLNAN LAN Wad SLT vvv LAdNI SONOS 20 80 v LAdNI JONNOS GSAOWSY STANVd LNO33 HLIM MAIA LNOS3 LHS 508 1 1 1 LAN Wid CLT GLT 777 vao 189 MGIA
25. NOTE Read the entire manual before installing and operating the unit Unpacking and Inspections 2 0 UNPACKING AND INSPECTIONS NOTE Read the entire manual before installing and operating the unit Upon receipt of the Static Transfer Switch2 the installer should perform the following steps to assure a high quality installation A high quality installation begins on the receiving dock The 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 STS2 2 4 External Inspections 1 While the 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 your local Liebert representative or Liebert Global Services at 1 800 543 2378 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
26. provides instructions for operating the LED Display unit without the touch screen display 15 0 Specifications provides specifications for the STS2 16 0 Event Message Help Text provides the help text for the various 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 Liebert contact information Safety Precautions 1 0 SAFETY PRECAUTIONS Read this manual thoroughly before working with the static transfer switch 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 static transfer switch 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 static transfer switch When performing maintenance on any part of the equipment under power service personnel and test equip ment should be located on rubber mats The service personnel should wear insulating shoes for isola tion from direct contact with the floor Unless all power
27. uL ALIAVHO HOLIMS LNOXD071 A3 Y ianiavo A TINO 1 NI GAYINDAY SSADOV 5 ANY NOILVTIVLSNI 1SnVHX3 GAYINODAY LINN 3AO8V 3ONVHY3TO NIW 011289 81 Ss313WTTIIIN S3HONI NI SHV SNOISN3NId 17 18 TNO sb bce SALON 818 vez 22 wings Installation Dra 100 250 amp STS2 ing hor draw Ismic anc Figure 11 Se 0 40111254 MOIHL HONI SZ XOUddV 14416 010 38V 51 4 3SV8 L3NISVO LNOYS SL3MOVS8 4 LNOSJ ANY HV3MH 8 qasinoas SI TIVM AIS 39NVLSIO WNWINIW 0 S 1N3S321d STIVM 3018 Jl Z 4 892 NI 81S Z OL 30001 O3r1ddns H LIM 813 L3NI8VO LNOS4 OL SLAMOVEE Y00714 1 4 TIVLSNISY SSHOOV Y31134 GSAOWSY 38 NVO YOO LINN SL3349V88 HOO TH TIVLSNI ANY THY SL3340VH8 SAOWSY ANY SNOILLVOOT 3 TOH MeV 9 JHVMQHVH N31H9IL ATINA LON OG 108 L330V88 ASVE LANIEVO LNO 4 OL SLAMOVYE HOOT LNOYS HOV LLV N3HL 2914 1340 vg HOO 14 2 1 LSVAT LV QN31X3 OL SAVL L330V88 OO 14 SLOTS OLNI S8V L NOILISOd OLNI L3NISVO S 334r19ld 3dn9l4 Layoved HOO lH LNOHJ3 danddNs LON HOO ANI YOO14 l3x0Vvug HV3H 8 LON 3H
28. 1 4 Line Cycle I PK Xfer Lockout 0 3 0 multiplied by 2 5 Unit xfer lockout detection point 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 a Configure this setting with a range of 1 30 degrees Select MANUAL MAX XFER PHASE ANGLE The default setting is 15 degrees and the resolution is 1 deg b Select OK to save the setting The setting is now displayed in the adjacent field in the User Settings dialog box 91 STS2 Touch Screen Display 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 fre quency 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 acti vating the frequency deviation alarm The frequency setting applies to both input sources a Configure this setting with a range of 0 1
29. 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 where the ambient air temperature is in the range of 32 and 104 F 0 C and 40 C with a relative humidity of 0 to 95 non condensing up to an altitude of 4000 feet 1200 meters Location Considerations 3 4 Altitude The standard units are designed for full load operation up to 4000 feet 1200 m above sea level See Figure 1 for recommended deratings for altitudes greater than 4000 feet 1200 m Figure 1 Recommended derating for high altitude operation 100 1 n 96 Se 94 D c 92 x 90 88 86 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 Altitude Feet 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 Figure2 Maximum ambient temperature for full load operation at higher altitudes 5 104 0 40 5 102 2 39 5 100 4 38 o 98 6 37 Ea 96 8 36 95 0 35 93 2 34 L 09441 33 89 6 32 87 8 31 lt 86 0 30 3 3 34 3 31 93 9 3 3 3 3 4 O
30. C Ee ED Ge POM Ne 59 STS2t0uch scr en display tho oh ose ote rA a pa d ote nanos kote Ware meus 65 Source transfer 555 er cem AUR tee RU s oe 66 Gate board viewing slot 68 STS 2 touchscreen display Eco uses ated haue erae s Gee s tete ee 85 Menus P CRT vo 86 Keyboard and keypad displays 86 Key lock tswiteh r sro eb dioe FES aus s E mE RES YU ea BINT dus Re ORG S 87 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 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 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 Event mask dialog vovv Steed NE SEE BEES WN ORE Oe BE A ed 89 User settings dialog esc Rev Aere eee RH E Ree u eel dade os 90 Source setpoints e eue beh Ih M edes ae sete ege eue 91 Comm options dialog box 93 M dem dialog box oe uy AA dte dee ee oe BA Aa p 94 Input contact isolator dialog box 96 Programmable relay b
31. ISOLATION TRANSFORMER TRANSFORMER 1 CB4 CB3 5 V V 4 225 225 225 225 225 225 5 4 Control Wiring Connections No control wiring is needed on the standard STS2 Only certain options require external control wir ing See 6 0 Options on page 13 for details 11 Power and Control Wiring 5 5 5 6 Remote Source Selection Wiring An optional Remote Source Selection board may be installed in your 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 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 T wo pairs of wires are used from the switch to trigger the source selection You can select the type of switch used for this remote control Connections are made to four of the connections using Form A dry conta
32. NIC can be installed in the STS2 to pro vide Ethernet connectivity via an RJ 45 port Ethernet cabling is the responsibility of the customer Category 5 cabling is required See 6 7 Network Interface Card NIC for more information on the NIC See the OpenComms Network Interface Card Installation and Users Guide for configuration instruc tions for the card If the optional OpenComm NIC is installed in the STS2 Select YES for the Network Interface Card option in the Comm Options dialog box to activate the card 98 STS2 Touch Screen Display SiteScan Configuration An optional RS 422 port contained in the Comms Board can be installed in the static transfer switch to provide communications with Liebert s SiteScan SiteScan is Liebert s system monitoring software that allows you to utilize a PC to monitor the static transfer switch s status and check alarms See 6 5 Comms Board for more information on this board If the STS2 will be connected to SiteScan Select YES for the SiteScan choice in the Comm Options dialog box to activate the card 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 System Options
33. NOILOATAS 310IN3H 2008 LecSd S3002 1V2I412313 1V201 L H L H HLIM NI 38 LSNW ONIMIM TIV S QNO ZS QN9 15 LdO NOIL2313S JOYNOS 31033 dO Wvilo via NOLLO3NNOO IONLNOD HOLIMS YASSNVUL 16 OL Z3oHnOS L3ounos AWVS NI Q3NISINOO 38 LON 1 5 NZ SNNY TOH LNOO SNIHIM H3MOd WO 31 Vevdds NAH 38 LSNW SH3HLO TONLNOO 11 31ON 995 318v9 GAGNVYLS WAWINIW A00 9MV9L E SH3 13IN 291 14 008 HL N31318VO 2 LV 01 ST1OVLNOO N3dO Q3GIAO amp d YSWOLSND L SALON 35 Installation Drawings Figure 24 Control wiring for the programmable relay board option yd LOOELZSd 53 03 1vOIH1I9313 1V901 TYNOILYN 3ONVQOOOV NI 38 LSNW TIY 8 318VO Q3aNVHLS 3 18IX3 1d 9MV9 LZ SH3 13W 291 L3 009 HLON31 318VO WOWIXVIW 2 OVASZL 002 dI VI SONILVH LOVLNOO 9 NOLLdO QHVOS AV I33 INVHOOSd dO NOILVOOT 4 INVHOVIG NOLLO3NNOO HOLIMS H3JSNVH L OILVIS OL S LINGNOO 3INVS AHL NI 38 LON 5 TOH NOO H3MOd IWOH3 31VHVd3S NAH 38 LSnIN SH3HLO TOHLNOO F NOLLdO QHVOS AV 1331 3 18VININ
34. Operating the LED Display STS2 14 2 2 6 Verify that the preferred source LED green LED is lit for the source that you want the switch to be using 7 Verify that the green LED for the corresponding SCR STS1 or STS2 is lit indicating that the SCR is closed 8 Close Output Breaker CB3 and in a redundant output configuration 9 Verify the 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 transfer is inhibited a bypass circuit breaker 1s 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 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 ra
35. and the type of value it requires Table 12 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 Group 2 2 System Model Number String 14 Character max System 3 System ID Number String 8 Character max Settings 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 8 Autodial Secondary Line String 20 Character max 9 Autodial Pager Number String 20 Character max 10 Autodial Pager PIN String 10 Character max Group 2 11 Modem Init String String 20 Character max cont 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 12 1 3 79 Communication Interfaces Table 12 Group settings and values continued Group Item Description Value Type Value Notes 1 SRC1 Fast Undervoltage Integer In of nominal below nominal Setpoint Group 3 User 2 SESI low U d
36. break before make with less than a 1 4 cycle break in the AC waveform During static switch transfers and retransfers the conduction state of the SCRs is carefully moni tored and controlled to prevent a current path from one source to the other This technique prevents a faulted source from feeding into the other good source Source Transfer The STS2 allows manually initiated transfers between the two sources providing the alternate source is 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 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 STS2 until the two sources are within the defined phase synchronization window 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 1s automatically transferred to the alternate source The default transfer voltage limits comply with the limits of the IEEE Std 446 1995 computer voltage tolerance envelope
37. seismic Figure 33 Installation draw 0 ON 3 00081254 ONVIS Y00714 V0Sc OTHL3NWNOSI 32 84 82 16 40706 LOEOvESS uGL VE 8216 096 LOvOvVESS 82 22 SC SC OYZ LOCOvESS LHOISH XVIA LHOISH LHOISH GNVIS HOO TJ 40 8291 8261 081 LOLOvESS 3 18Vl1 LH9I3H LYVHO 3noHO L FAYVMCYVH 58114 OL 1 ANY YSHSVM LV 14 H3HSVM 3901 1146 MIYOS dVO WWOPXSZ L ZLW ONISN GNVLS YOOTS OL 13 HOV LLV SH TL LE OL H3HSVM 1V 14 H3HSVM 9901 11148 MIYOS dVO WWOEXOS L OLW ONISN ZS1S OL 1330 v8 HOV LLV 008 LzSd V TIVLAG 1 91 SL3MOVHS LNOY4 JHL TIVLSNI 9 2009 8 OM Z OI3 LAMOWYE QNV1S 14 Z L LSV31 1V QN31X3 OL S8V1 13 0 8 2616 H3MOT IHL NO 61016 JHL OLNI Lld LAMOVYE 2515 JHL NO SAVL LVHL OS GNVLS HOO 14 3HL 1 2515 SHL 1104 1004 2 aariddns 97195 SHOHONV NOISNVdX3 SLIOSNYL GVSH Q3 v X Z L ONISN 1995 GNVLS 300714 HOYLLY 00 14 SHL ONIHONOL 38 LSNW 1334 T3A31 38 LSNW GNVLS 0009 254 NO 8 V TIVL3G 1003 NI NMOHS LAN S LAN N31H9IL LSNrav N3S001 1334 GNV LS HOO 14 WOILYSA LSNFAY OL 0008 254 MIIA WO LLOS NI NMOHS SV GSLVLNSINO 1334 HLIM GNVLS TIVLSNI GAYINOAY LON SS309V dl TIVM V OL LX3N GALNNOW NYO 1
38. 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 manual before installing or operating the system Adhere to all operating instructions and warnings on the unit and in this manual Liebert Corporation neither recommends nor knowingly sells this product for use with life support or other FDA designated critical devices The Static Transfer Switch 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 start up 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
39. 0 Liebert POWER PROTECTION STATIC TRANSFER SWITCH 2 USER MANUAL Liebert 100 1000 Amp 50 60 Hz 5 EMERSON TABLE OF CONTENTS IMPORTANT SAFETY 5 1 OVERVIEW OF MANUAL C Y EYE ew 2 1 0 SAFETY PRECAUTIONS ad e uqha bs Sa IR s 3 2 0 UNPACKING AND INSPECTIONS 4 2 1 External Inspections DERE RSEN ERG NUR Un acne 4 2 2 Unloading and Handling ti uit Mees oA RAEN e E ERU 4 2 2 1 Handling 5 2 22 Unit Preparation usya la st eee le UR RHET RR ee oto eda A bdo e Ads 5 2 3 Internal sos oc Re We v ENS S Haee via tee Nds 5 3 0 LOCATION CONSIDERATIONS 6 3 1 Recommended Minimum Service 6 3 2 Heat Ountputu odas et ette plica net fa dab Rene bass 6 8 8 Operating 6 TES noon Tr T 4 0 LOCATING THE BT S2 t ius eu sc C ORC Je ee a DOR HU C CC A e TRAE E DR eS 8 4 1 Leveling and Anchoring the Unit to the Floor
40. 6 5 GOOELZSd PEE MHOMLIN 29 SALON 33S 318VO ONILOANNOOYALNI YOLOANNOO St 3 aariadns YAWOLSND MYOMLAN LANYSHLA 54003 1VOIHLO3 13 TWNOILVN H LIM 39NVQOOOV NI 38 LSNW ONIHIM TIV 9 NOI LdO QHVO 4 MYOMLAN dO NOILVOOT HOLIMS H3JSNVH L 15 dO J18VO LYOd TVIH3S WVSOVIG NOILVOO TNOILO3NNOO T1OH LNOO OL 343 9 H3lndWOO GYVGNVLS LINGNOOD 3NWVS NI 38 LON GINOHS SASN ATNO 90135 SNNY ONIMIM TOH LNOO SNISIM H3MOd WO J 31Vilvd3s MOLO3NNOO NNY 38 LSNW SH3HL1O SNIMIM TOHLNOO r zez sH AOVAYSLNI MHOMLN AHL NIYN9IJNOO Od TVAINVIN FONVNALNIVI 9 NOLLVH3dO NOILVTIVLSNI OL vwo LNSYYND OdAS 39VLTOA TWNOIS OMY 209 3 18VO GALSIML HLIM SHALAW 00 1334 000 HLON313 18VO WOWIXVIN Z SQHVONVLS LANYSLNI Ad SI HLON313H L HOLO3NNOO 1 SPP 3 18VO I3NH3HLI3 1 48 8 00 0 3ZIS 38IM L SALON 4NOLLO3NNOO YAWOLSNS ON 4NOLLO3NNOO YAWOLSNS ON 40 Installation Drawings Figure 29 Control wiring for the RS 232 port L 9H 9006 54 V WLad HOLO3NNOO 69 QNO 6829 HOOQG SNISO 19 OL YOldd Q3AONW3 38 LSNW HOLO3NNOO Q3N3dO LNO4 318188399 V HOJLO3NNOO HOJIO3NNOO 68d HONOYHL NOILVOINNWWODS 260 54 L SALON Qq3N
41. 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 How ever as with other RS 232 interface settings four parameters are passed See 12 1 2 Configuring the STS2 via the Terminal on page 78 for more details about the parameters The syntax for configuring event masks is SPT 4 ID D L4 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 9 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 the 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 83 Communication Interfaces aes of Event Mask Settings To latch eve
42. 914 13s v8 GNVLS HOO TH 1SV31 LY QN31X3 OL SYL L340V88 2515 H3MO13V3M IHL NO SLOTS HL O LNI 114 LAN 1330 v8 ZSLS NO S8V1 AHL 1 1 OS 15 0014 3H1 OLNO 2615 SHL S 1004 33d A7134 SHOHONV NOISNVdX3 61108051 Qv3H v X 2 ONISN 1334 GNVLS 300 71H HOV LLV HOO 1H IHL NIHONOL 38 LSnIN 1334 TW T3A31 38 LSNW GNVLS 40014 0009 254 NO 9 9 V TIV L30 1004 NI NMOHS Wr 5 ANY LSNFAY N3SOO1 1334 GNVLS 400 1H dO 1H9I3H LSNFAY OL 0009 264 MIIA WO LLO8 NI NMOHS SV Q31V LN3ISO 1334 HLIM GNVLS 30074 TIVISNI GaYINOAY LON SS399V TIVM V OL 1X3N GALNNOW 38 NYO GNVLS F SLOAN 1334 H3T3A31 NALHOILSY SS T LJ 69 OL 30001 33HSVM LV14 H3HSVM 9901 11145 MIYOS ZLA ASN 1009 254 2 915 915 1NOSd SHL OL SNIOV3 39NV TH LNIG HLIM 2515 3H1 JO NO S310H SNILSIX3 ONISN LIMOYYH 2516 YAddN LNO3HH TIVISNI 10091264 Z 914 913 1f1O 9NIOVJ 88 1 2515 3H 40 3GIS330NR NO S31OH 9NILSIX3 ONISN 139 V8 2515 TIVLSNI 1009L28d 9 TIVL3Q 33S SLAN 1334 8313 31 8 6 2515 IHL N3S001 LAN 696 788114 OL 1 H3HSVM LV14 ANY H3HSVM 11148 MIYOS WWOPXSZ L ZLW ISN 10091254 OM 915 ANY 9I3 GNVLS
43. B Failed The secondary power supply is no longer providing DC power to the control board and CAN options Contact Liebert 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 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 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 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 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 o
44. JHL OL 3 18VO9 ONILOANNOOD SLAN ANY SH3HSVM 51108 SAQNIONI SNOLLO3NNOO 3 18VO ANNOYS ANY IVHLOSN 114100 LAdNI SI 3SVMGOSVH 9 53003 1vOIH10313 1V9010QNV IVNOLLVN 39NVQ8OOOV NI 38 OL SI 11 S g3aN3WINOO3H LON S318VO 33ddO9 ANY WANIAINTY 5318 LINGNOO 31V8Vd3S V NI NNY 38 GINOHS S318V9 LINGNOO 31V8Vd3S NI Nod 38 LSNW 83MOd ANY TOHLINOO gov 1d3H IZIS LINGNOO LINS OL S31V ld SS399V 318VAONW3H TT18V TIVAV 318VO INOLLOS ANY 2 SYSLAWITIN SIHONI NI SNOISN3MWIO 11 SALON 508 WHLNAN GSAOWSY STANVd LNOYS MAIA V V NOILOAS 20 80 vo 104110 WALSAS ego Sg5 go 0g ao vo 1 5 o09g ao vo LAdNI JOWNOS sna LAN Wad 9 27 En Wai THOS 129 508 LAdLNO LNdNI LAN Wid GLT GLT 1222 777 MAIA LNO3 508 vao 199 cZ SNA ANNOYS yy LG OED 471 057 26 wings Installation Dra 100 250 amp STS2 with dual output breakers Figure 15 Electrical field connections drawing eH 10121454 INVHOVIO 3NIT HNO 104100 WALSAS
45. 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 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 mainte nance 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 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 sourc
46. S13390VM8 YAddN HLIM 25186 dO WO LLOS SIE l3MO0VMH8 2515 HV3H YSHSVM LV14 H3HSVM 1l ldS IWNIWOPXSZ L ZVW MINOS saovid 335 S3HSVM 1V14 H3HSVM 9201 11148 INWOTXSZ L ZLA MANOS saovia I340V8 2515 LNO H4 54 Installation Drawings Figure 43 Installation drawing seismic floor stand 800 1000A 0 ed 600 654 SE LNOSJ H3MOT HSHSVM ZLA H3HSVM 3201 114 ININOPXS L CLIN MIYOS Sa0V1d OLN H3HSVM OLN H3HSVM 3201 11148 INIOEXS L 0LIA MIYOS 32 1 M3IA OI L3NOSI LHOIY V3 SLOTS 1390 v8 214 HMO OLNI 30175 OL SAV 13 0 8 sva l1349VH8 2815 H3MOT1 l1349VH8 2518 H3ddf YYY LH9IH STIVL30 403 80011284 20011684 000 1284 S MA 335 ALON ACIS 1 6914 MAIA 9IHI3INOSI LHOTH LNOYS 55 Installation Drawings Figure 44 Installation drawing seismic floor stand 800 1000A 9 001L Sd 9IHISINOSI STIVL3G ZOOLLZSd QNV 10041684 000 8 SOM 33S ALON MAIA LNOJ 3GIS 1 77 9P 0721 56 Introduction to STS2 Operations 8 0 INTRODUCTION TO STS2 OPERATIONS 8 1 8 1 1 System Description A STS2 provides an automatic seamless transfer between inpu
47. SCR OPEN One or more of the SCRs for Source 2 is open D F AE 005 PRIMARY FAN FAIL A primary cooling fan has failed and the unit is now being D AE cooled by a secondary fan which is not monitored 006 CONTROL MODULE FAIL Control logic module has failed D AE 007 PWR SPLY DC A FAIL Power supply DC bus A has failed D A E 008 PWR SPLY DC B FAIL Power supply DC bus B has failed D A E 009 PWR SPLY 51 AC FAIL Power supply Source 1 AC has failed D AE 010 PWR SPLY S2 AC FAIL Power supply Source 2 AC has failed 041 PWR SPLY LOGIC FAIL A power supply module has failed D A E 012 OUT VOLT SENSE FAIL The output volt sense module failed D A E 013 S1 VOLT SENSE FAIL The Source 1 volt sense module failed D A E 014 S2 VOLT SENSE FAIL The Source 2 volt sense module failed D A E 015 S1 SCR SENSE FAIL The Source 1 SCR sense module failed D A E 016 S2 SCR SENSE FAIL The Source 2 SCR sense module failed D A E 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 E 020 S2 GATE DRIVE FAIL The Source 2 gate drive module failed D A E 021 INTERNAL COMM FAIL Internal CAN communications failed D A E 022 EXTERNAL COMM FAIL Options CAN communications failed A E 023 CB1 SHUNT TRIP FAIL CB1 shunt trip failed 74 Alarm and Faults
48. Settings An S2 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 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 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 S2 UV S2 UV RMS S2 OV and S2 OF UF The load of the 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 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 OVERCURRENT Source 1 Overcurrent STS2 is running on Source 1
49. 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 STS2 109 Specifications 15 0 SPECIFICATIONS 15 1 15 1 1 15 1 2 15 1 3 This section provides the specifications for the STS2 System Configuration The STS2 can be set in several different configurations according to the model and location The con figuration 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 STS2 accepts input frequencies of 50 Hz and 60 Hz The frequency shall be within 0 5 Hz of the nominal frequency Input Output Voltage The STS2 models are available to handle various voltages The input voltage must be three phase AC 3 or 4 wire plus ground The STS2 18 designed to accept an input neutral from each source The neutral is switched in the 4 pole static transfer switch only The voltage shall be within 10 of the nominal voltage The output voltage shall be three phase AC 3 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 17 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 380 220
50. 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 88 Input Contact Isolator 88 Occurrence of the indicated external event has been detected by Input Contact Isolator 88 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 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 134 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 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 acce
51. alarm The alarm is latched and must be reset 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 S2 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 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 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 S2 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
52. and CB3A breaker status and STS SOURCE 1 and OUTPUT boxes are highlighted on the Mimic screen 7 Open bypass breaker CB4 8 Rotate the keys in CB4 interlock to extend the interlock 9 Remove the proper key from CB4 interlock and insert it into CB2 breaker interlock 10 Rotate the key to retract the CB2 breaker interlock 11 Close source input breaker CB2 12 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 48 ee 69 Operating Instructions for the Touch Screen Interface 10 4 2 Bypass Procedures for Source 2 10 5 10 5 1 10 5 2 bypass the switch for Source 2 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 Source 2 1s 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 48 Remove the interlock key from CB4 and place it in CB5 interlock Open the alternate source input breaker Rotate and remove the interlock key Insert the key in the CB5 bypass breaker interlock Rotate interlock keys in the CB5 bypass breaker interlock to retract the interlock Close bypas
53. 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 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 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 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 th
54. 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 triggered 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 95 STS2 Touch Screen Display 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 dis cussed in Configuring the Programmable Relay Board Settings on page 97 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 58 Input contact isolator dialog box 10 11 Input Contact Isolator INPUT CONTACT 91 DELAY foo INPUT CONTACT 92 DELAY oo INPUT CONTACT 93 DELAY oo INPUT CONTACT 4 DELAY oo INPUT CONTACT 95 DELAY oo INPUT CONTACT 6 DELAY INPUT CONTACT 97 DELAY INPUT CONTACT 8 Detay oo Save Cancel Select INPUT CONTACT 1 A keyboard is displayed to allow you to enter the name of the alarm Enter the name of the alarm set for that input For example a fan proble
55. cleared Process new faults and alarms and clear inactive alarms Provide the alarm reset and silence options 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 bypass ing of the solid state switching devices to either input source All switches in the STS2 are plug in types which allows any switch to be replaced without de energiz ing the output bus The Merlin Gerin 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 discon nects 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 10096 rated load Because the unit 1s a fuseless design with non automatic circuit breakers overcurrent protection 1s provided by upstream circuit breakers 62 Theory of Operation 9 2 4 9 2 5 9 2 6 Logic Modules The logic contains three separate redundant logic modules The modules contain the logic necessary to run the STS2 and control transfers and shunt trips under all circumstances without any outside assistance once set up and starte
56. 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 STS2 enables or disables the ability to make changes on the STS2 The key lockout switch is mounted on the front door See Figures 8 through 10 for location of the key lockout switch 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 52 Key lockout switch B Changes disabled Changes enabled Using the Password If the unit is 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 pass word select OK The password is case sensitive Password access times out after ten 10 minutes and must be reen tered to save changes The time out period cannot be changed To set or reset the password 1 Select SYSTEM SETT
57. d 18VO9 9 ANY TVHID3N LNdLNO LAdNI GAlddNs SI LA J3HVMQSVH 9 53009 TvOl31O313 WOOT ONY TIVNOLLVN 3ONVQHOOOV NI 38 OL SI 11 S g3aN3WWOO3 LON S3 18VO WANININTY GV10 Y3ddO9 ANY WANINN TV t S318VO LAdNI INOS3 LINGNOO 31VNVd3S V NI ND 38 5 S318V9 LAdLNO LIndNOO 31VSVd3S NI 38 LSNW 9NISIM 83MOd ANY SNIHIM TOHINOO 96 ANY AZIS LIndNOO LINS OL HONNd SAOWSY S31V Id 55399 d 18VAOW3H 318V IIVAV 318V9 INOLLOS ANY 1 SuU313NWITIIN SIHONI NI 34V SNOISN3WIQ TIV L SALON 8 9 MAIA 3018 VV NOILO3S GSAOWSY STANVd LNOYS H LIM LNOYS 1NO 4 sna ego LB u 52 111171 a o0g go vo a 2 Andino WALSAS MIE SIP 200 4 T E 2211 T annoys H 2 ml 999 90 os 90 29 op a y 80 77 3GIS LHD f Fee SNE WYLNEN o0g gao vo S a v 0 Le V 99 2 8 8 8 0 n 8 3015 1 2 11084 Sn8 LAdLNO LAdNI 06 SngaNnouo o2 dAl 21 dAD fe qu IS Jes OO OO 0 D o 9 9 6 1 h 1 SLT AN dAl 5 1 LAN Wad 791 CZT 42 2 1 dAl 16 30 wings Installation Dra
58. ervoltage Integer In of nominal below nominal Setpoint Settings 3 Slow Undervoltage Integer In number of lines cycles Detect Delay 4 SRC1 Overvoltage Integer In of nominal above nominal Setpoint SRC1 Overvoltage Detect 5 Delay Integer In 1 4 lines cycles 6 SRC1 I peak Transfer Integer x 10 Setpoint 7 SRC2 Fast U dervoltage Integer In of nominal below nominal Setpoint 8 SRC2 Slow undervoltage Integer In of nominal below nominal Setpoint 9 SES Slow Undervellage Integer In number of lines cycles Detect Delay 10 SRC2 Overvoltage Integer In of nominal above nominal Setpoint SRC2 Overvoltage Detect 11 Delay Integer In 1 4 lines cycles 12 SRC2 peak Transfer Integer x 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 4g 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 Event 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 d
59. full height cabinet mounts on either the right or left side of the STS2 and is fully enclosed with a keylock door and an accent cover that permits access to the panelboard without exposing other por tions of the STS2 Input Contact Isolator Board The Input Contact Isolator Board ICI provides an STS2 module interface for up to eight external user alarm or message inputs to be routed through the static transfer switch 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 pro gram the alarm messages through this dialog box See Configuring the Input Contact Isolator Settings on page 95 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 site monitoring product and or an external or internal modem SiteLink 12 or SiteLink 4 is required for SiteScan to communi cate with the STS2 The Comms Board is equipped with an RS 422 communication port for communication to a Liebert 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 th
60. 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 important 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 per sonnel For example 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
61. 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 Sys tem Settings are group 2 The numbers shown below are entered for the group parameter For exam ple start of a System Settings command is 5 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 83 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 12 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 under 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 11 provides a list of the possible value types and their descriptio
62. 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 The Source Transfer screen indicates the synchronization between the two sources while the voltage and frequency are displayed on the Mimic See Figure 47 Transfer 1s 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 source the 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 Man ual Transfer Preferred Source Selection for instructions on this procedure Figure 47 Source transfer screen PREFERRED SOURCE 2 A B B C C A 195V 19
63. 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 residential area may cause harmful interference that the user must correct at his own expense WARNING Locate the center of gravity symbols 45 and determine the unit s weight before handling the cabinet OVERVIEW OF MANUAL The 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 STS2 installed and running Read the entire manual before proceeding with the unpacking and installation of the 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 which is needed when calling Liebert 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
64. on Close output breakers CB3 and CB3A if supplied The LEDs for CB3 and CB3A if supplied turn on Open bypass breaker CB5 The LED for CB5 is turned off Rotate keys in CB5 interlock to extend interlock Remove the proper key from CB5 interlock and insert it in CB1 breaker interlock Rotate key to retract CB1 breaker interlock Close source input breaker CB1 The LED for CB1 is turned on Verify that the output LED 1s lit 108 Operating the LED Display STS2 14 2 4 Normal System Shutdown The STS2 can be shut down from either the static switch mode or the bypass mode Shutdown in Static Transfer Switch Mode When the Static Transfer Switch is operating on static transfer switch mode not mainte nance bypass mode 1 2 4 Turn off the load equipment manufacturer s recommendations Open to turn off the static switch output Open if the static transfer switch 18 a redundant output configuration The LEDs for CB3 and CB3A 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 STS2 Shutdown in Maintenance Bypass Mode When the Static Transfer Switch 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 static transfer switch output
65. the 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 STS2 transfers sources I PK Xfer Lockout if current from the source exceeds this threshold the STS2 disables source transfers and has to be reset either manually or automatically The type of reset is configured under the User Settings 90 STS2 Touch Screen Display To configure the set points for each source 1 Select SOURCE 1 2 SET POINTS from the User Settings dialog box The Source 1 2 Set Points dialog is displayed Figure 55 Source setpoints Select Source Fast UV Settings 9 Slow UV Settings 35 OV Settings 35 Save Slow UV Detection Delay cycles OV Detection Delay 1 4 cycles I PK Xfer Lockout Amps Source 1 2 Set Points Cancel 2 Select 1 to configure the settings for Source 1 3 Configure the settings using the keypad or dialog box that 1s displayed when you touch a button Table 14 Set Point Parameters Button Range Default Comments Fast UV Setting 96 10 to 30 of Nominal 20 Set in increments of 196 voltage rating Slow UV Setting 96 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
66. to reset alarms and turn off audible alarms such as a horn 13 1 Display Overview The 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 49 STS2 touch screen display Mimic SOURCE 2 A B B C C A 195V 195V 195V 0 OA OA Event Controls SILENCE lO Liebert KEEPING BUSINESS IN BUSINESS Display Panel EMERSON Network Power Event Display 4 1068 SOURCE XFERS STARTUP PROC PROC HELP Loco Menu Options 85 STS2 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 choic
67. 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 S1 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 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 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 s
68. 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 86 Input Contact Isolator 6 Occurrence of the indicated external event has been detected by Input Contact Isolator 86 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 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 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
69. u y dee e Bits BBO RR 74 COMMUNICATION INTERFACES 76 Usinge the RS2232 vtt athe n c ied PS SR a Ss 76 12 1 1 Connecting and Using a 77 12 1 2 Configuring the STS2 via the Terminal 78 12 1 3 Setting Bitpacked Options with the Terminal 81 12 1 4 Setting Event Masks with the 83 STS2 TOUCH SCREEN DISPLAY 85 Display OyervieW gt sq oue mucus stg o the PR aa e s elu aa shh ires e 9 ss 85 Menu Overview 5 0 qood aS or a RE ed be sat ush Ro oar dd ac Ree eo Rk AE 86 Be Dials SCULLY ge sole Ent uqha se ase es a QQ apama Eri dr 87 od ha fae eRe ype e Se EG aa au BA le es 88 Event Controle Qu coat ui cle E AP CM a ca M AE 88 Event Display E DR ee CE SARACENIS 88 Men i oec does Daya ya eae Et 88 13 6 Configuration Menus s deas ufo s duree tede x uude ole deba eges qua ense 88 19 6 27 MiG OS cene e ees doe io aen Ghee mena k 101 15 6 Source Transters es wow et bee Rt o e EAR RT ne MIA DRAM ua BLAU e A 102 18 6 4 Startup Procedure oe e es ERE BS e es s p 1
70. 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 1s connected in parallel with the output plug in non automatic circuit breaker 15 Options 6 12 6 13 6 14 Input Junction Boxes and Cables Two input power junction boxes 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 enclo sures 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 3 meters long See 5 2 Input Junction Box Installation Optional on page 10 for more information and specifi cations See Figure 30 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 infor mation Installation details are provided in Figures 11 through Figure 13 on page 25 Seismic Floor Stand Seismic floor stands in four heights 18 24 30 and 36 457mm 610mm 762mm and 914mm are available for the STS2 The stands can be fastened to the floor to meet seismic Zone
71. 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 audible alarm if so configured If you are accessing the 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
72. 02 18 0 5 Bypass Procedute ou ves tes OR RR Rl redeo 102 19 0 0 I HOelp e ebd cus ba Me 102 19 60 45 0904 2 i Eee qe ie Teo e Ed Be eS ed dre ah eO Bi 102 Cleaning the LCD Touch Screen 102 OPERATING THE LED DISPLAY 5 52 103 LEDs and Buttons and Key Lockout Switch 103 144 Eront Panel eee de aoe o ee Det eo oe qd salate ar Mad weasel oles Gadde 103 14 1 2 LED and push button 104 14 1 3 Event Controls e eter te dil gest eo laeta a p 105 14 1 4 Key Lockout Switch 105 8 105 14 2 1 Normal System 105 14 2 2 Manual Transfer Preferred Source 1 106 14 2 3 Maintenance 107 14 2 4 Normal System 109 iii 15 0 SPECIFICATIONS om Race us be kau EUER e 110 15 1 System
73. 1 082 LHOI3M HOLIMS VOSZ XVN YH MA 2671 0897 HOLIMS V00L XVI 0870 18 01 2 104100 TINO 1 4 NI GAYINOAY SS399Vv 39IAH3S ANY NOLIY TIVLSNI 1SnvHX3 LINN 3AOSV S3ONVHY3TO NIIN NINZST 84 SH3 L3IAFTTIIN SSHONI NI SNOISNAWIG L ALIAVHO LO 000 O TNO bce SALON 918 SHualN39 uaisvo 969 MAIA LNOJ 881 alil sv M90 18 LON OG 796 266 ALIAVHO waiNao 29 17 wings Installation Dra 400 600 amp STS2 Figure6 Outline drawing Aad 00r LLCSd dAL 508 SNIMS HOOG xv 82 AH LN3 dOL 318V9 HOLIMS H2JSNVH L 15 dV 009 00v SNIMVHG ANITLNO dO L 11 ez SH31N39 FZE X day 46 828 l SM3IN3O 062 w3isvo 96 SH3lN3O TANVd ACIS NMOHS LINN dO LNO H4 V WWLAd 0 SALON 335 t 3 10H ONILNNOW Q3Qv3sHL VIG WIAZI dAL 822 869 LINN JHL HO LHOI3M JHL LYOddNS OL QNV LS HOO 14 SHL NO 1S33 LSNW SH31SVO JHL qasn SI GNVLS HOO Al 3SV8 LINN HLVANYSGNN S310H ONILNNOW LINN 3HL 01 Q3Qv3H LSNW 517109 ONILNNOW GNVLS HOO 1d HO 9NIHOHONV 21005195
74. 1 vsvda3s NI 38 LSNW YIMOd ANY SNIHIM TOHLNOO IZIS LINGNOO LINS OL HONNd SAOWSY S31V Id 55399 d T8VAOW3H 318V TIVAV T18V9 IWO LLOS ANY c SS3 3IAFTTIW S3HONI NI SNOISN3IWIG TIV L SALON 508 WHLNAN a O O OO 161 005 6 1 QSAOWSY STANVd LNOYS HLIM INOY4 80 20 80 0 104100 WALSAS 999 zgo og ao vo c SONOS og ao vo 104 3930OS ACIS 508 LAdLNO LNANI LAN Wad o 0 211 c 1 6 1 e 1212 LNO3 MAIA LNOS3 dA D LS en m 061 vedo sna yao bdo 508 GNNOYSD vv 29 wings Installation Dra le output breaker ing 800 1000 amp STS2 with s Figure 18 Electrical field connections drawing 008ZLZSd INVHOVIG 3NIT 3NO 104110 WALSAS A gt gt 99 lt lt 60 109 4 60 92 go 89 dounos 3ounos sna 29 LANI 3ounos 8 LNdNI 3ounos V 3ounos U N 87 SgT HONI 82 SI SLAN Wad l Z LNAWAYINOAY IHL 7 Suvg 509 OL 318V9 ONILOANNOO SLAN ANY SH3HSVM 51108 SHO TIONI SNOLLO3NNOO
75. 123 Event Message Help Text 51 UV Source 1 Under Voltage fast detection The input voltage from Source 1 dropped below a set percentage 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 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 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 1 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 S1 Fail alarm was also issued and source transfer has been inhibited The load of the 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm
76. 2 49 By Pass vb eara wt iu 59 Operator Controls s ous nk SUC NA E 59 THEORY OF 60 General Descriptions eee V en e ve E I RR a 60 9 1 1 5152 Static Transfer 60 9 1 2 7 Source er RI EU Ia Bhd ak a arwa as ee eek 60 9 1 8 Automatic 60 91 4 Emergency EXC pei es 61 9 1 5 Load Current Transfer 61 2 suyu weeds Ma qa SENE Ode A We d 61 9312 Eomae e educ up abae u etu a 61 Detailed Component Description 0000 cc Re 61 9 2 1 eure Brad Pet e de ege ota rte e E RN e ueste d 61 9 2 2 Circuit Breakers xe Repo ee deesse Re ege Ea dte e ies d 62 9 2 9 SORS daa tete eei ee Fa itte S ite S ie LE e OE 62 9 2 4 Eogie Modules s un ER e BA Aedui Edd 63 9 2 5 aute etes De Se dte de rte e ceste oir te Su ce See e tid 63 9 206 RS 232 Porte un eu euisque edd edu e i
77. 2515 OL 13 0 HOVLLV 200 159 TIVL3 L 913 SLIMOYY4 1 4 H3MO1 JHL TIVLSNI 20041284 OM 2 OI3 LAMOVYE GNVLS HOO T4 HONOYHL Z L LSV31 1V QN31X3 OL SAVL L340v88 2515 H3MO1 3HL NO SLOTS JHL OLNI 114 1331088 2515 NO S8V L JHL 1 1 OS GNVLS HOO T4 IHL 1 2616 TION 1004 Yad aariadns 91195 SHOHONY NOISNVdX3 SLIOSNY L QV3H AJY X Z L ONISN 1334 GNVLS 14 HOVLLV 14 SHL ONIHONOL 38 LSNW 1334 TIY ANY 38 LSNW GNVLS 000 5 NO 8 V TIVL30 1004 NI NMOHS LNN Wyf SLNN JHL NALHOIL ANY 5 N3S001 1334 ANYLS YOOTS dO LHOISH TVOLEH3A LSNFAY OL 00041664 MIIA WOLLO NI NMOHS SV Q31VLN3IHO 1334 ANYLS TIVISNI GaYINDAY LON SS399V YYY dl TIVM V OL LX3N GALNNOW 38 NYO GNVLS HOO TH SION 1333 S3 T3A31 NALHOILAY 584114 69 OL H3HSVM LV 14 H3HSVM 1148 MIYOS ISN 10041864 Z 14 L913 LNOSJ 3HL OL SNIOV4 39NV 14 1N38 HLIM 2816 SHL dO NO S310H ONISN 1330 V8 2515 LNOYS TIVLSNI 10021254 2 ISH3ANN NV L 93 1f1O S9NIOVJ S8V1 2515 3H1 dO 3GISH3QND NO 5410 SNILSIX3 ONISN L330V88 2515 VAY TIVLSNI 10012564 OM 9 130 33S SLAN 1334 H3 3 31 3 18V 1S Qv 2515 IHL N3SOO1 881 14 S OL 3010801 H3HSVM 1V14 ANY H3HSVM
78. 3201 1146 MIYOS ZLA ISN 10041264 915 16 IHL 40 1NOHJ ONIOW4 39NV 14 LNI S3 1OH SNILSIX3 ONISN GNVLS JHL OL L349VH8 2515 SV3H TIVISNI NOLLVTIV LSNI OL H3dOHd Od TIY MOSHO SALON NOILVTIVLSNI 8 IIVL3Gd 1004 LAN Wr LAN M3IAIWO LLOS NMOHS SV ONILNNOW OL TaTWavd 1004 31 ONLLNNOW S dAL VARA 4S8 LZ M3IA LNO H4 2 dO 1 O q O DD FO w P q 4 o 9 9 6c Alavi 33S 53 wings Installation Dra floor stand 800 1000A Ing seismic Figure 42 Installation draw 0 84 L00ZLcSd I330VH8 ONILNNOW HV3S HLIM GNVLS Y00714 dO MIA ACIS 1 vols 1NO 4 uvas 1 IIV L3Gd 1004 LAN 1004 H3T3A31 SLAMOVEE 26186 dO ACIS cold l330VH8 2515 2515 daddN LNO 4 P LNO 4 Va 9 STIIV 13G 80021484 20021684 00021254 SOM 33S 31ON l390VH8 ONILNNOW HLIM GNV1S HOO 143 dO S3HSVM 1V714 H3HSVM 201 1148 uurx S7 L Z LIN MINOS saovid 6 l3MO0VH8 2515 E uS
79. 4 require ments See 4 0 Locating the STS2 and Figures 33 through 44 for instructions and details for installing seismic floor stands 16 wings Installation Dra INSTALLATION DRAWINGS 7 0 100 250 amp 5152 Figure5 Outline drawing ON 3 00111484 HOLIMS H34JSNVM L OLLV LS OSZ 004 SNIMVG 3NITLOO dO L INOLLOS8 E 2081 ENIMS XVI rez AHLN3 dOL 4 SH31N39 619 318v9 10H1NOO WOLLOS SH31N3O em M3lsvo WWZL 10u1NOO TANVd 315 INOHLIM 9v NMOHS LINN 40 s 911 V WWLAGd AHLN3 dOL 1 33S eiz 318V9 H3MOd S 0 SALON 33S t 310H ONILNNOW 887 qaavasHt LINN SHL dO LHOISM 3H1 15044058 OL GNVLS YOO14 SHL NO LSJ LSNW SHALSVO JHL 036 SI GNVLS HOO 3SV8 LINN HLVANYSGNN S3 10H ONILNNOW LINN IHL OLNI LSNW SL108 ONILNNOW TNVLS HOO TH 9NIHOHONY OINSI3S v 11 33S SATOH ONILNNOW 1 4 82 AZIS 318VSOdSId MALTA LIV 39v dis OL HOOG N3dO HLIHM 440 Wal HO 102 IWOLLYSA dO 9 SL NIHLIM L3NISVO d33 ONMGNVH 31vn03Q0v ATIVENLONYLS SI WOLLOS LINN 68
80. 5 SLOAN 1334 H3 T3A31 N31H I 132 68114 S OL 300801 H3HSVM 1V 14 H3HSVM 9901 111485 MIYOS WWOPXSZ L ZLW ASN 1009 254 2 91 91 1 3H1 OL 9NIOV SONV1S LN38 HLIM ZSLS AHL JO AGISYSGNN NO S310H 9NILSIX3 ONISN L330V38 ZSLS YAddN LNOYJ TIVLSNI 10081254 9I3 ANY L 914 LNO ONIDVA SAVL HLIM ZS1S AHL HO 3GISH3QNf NO SATOH SNILSIX3 ONISN L 330V88 2515 VAY TIVLSNI 10091264 OMG 9 TIV L3G 33S SLAN 1334 S313A31 318V1SnfQv 2515 IHL N3S001 S8T 14 68 OL 301080 H3HSVM 1V 14 H3HSVM 11148 MIYOS dVO WWOPXSZ L ZLW ASN LO0SLZSd OMG Old 9I3 GNVLS 4 IHL dO LNOYS SHL 9NIOVJ 3ONV I4 1N38 HLIM SATOH ONILSIXS ONISN GNVLS HOO 14 JHL OL L3340VH8 2515 YAMOT TIVISNI NOILVTIVLSNI OL 4 3HVMOHVH TIY MOSHO L S31ON NOILVTIVLSNI LAN Wr 2518 VOSZ 004 15 YOOTS 21 5195 ONIMVYC NOILVTIVLSNI MAIA WOLLOS 9 NMOHS SV ONLLNNOW OL TaTIWuvd 1004 NONY ONLLNNOW MAIA LNOtId 1009 318v1 LHOISH LON 469 Lon L 45 Installation Drawings Figure 34 Installation drawing seismic floor stand 100 250A ed L00SL Sd 1 ONILNNOW 3MO 1 HLIM aNYLS HOO 1d dO ACIS 1 91 vols l3940VvHg
81. 5V 195V DA OA OA 0 0 ALTERNATE SELECT PREFERRED SOURCE RESET SILENCE 0 30 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 18 designated as the preferred source and that the input source changes to the desired source The Mimic is updated to indicate the new preferred source The source 18 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
82. 94 WN 692 81862 OL INOYOL ANY JYYMAYYH 03114408 HUM SI340VH8 13 8 9 SS399V 4331138 04 TIVLSNI ANY THY duvMquvH N3lH9 OL SLAVES 3AOW3H 38 LINN 0 S13 0V38 SAOWSY ANY SNOILYOOTSIOH MYYN 9 JO 81018 OLNI 891 3V3H HLIM NOILISOd OLNI 3uf9ld 1 WOO 1NOUJ 80014 aaNddNS LON WOHONV 30013 dalddns JYYMAYYH Layovad 5 8 13 8 1 13NI8V9 40 X000 084 3930913 03114408 LON YOHONY 009 1 30014 40 TNM OL 651 0014 1NONJ TIVISNI3H SI340VH8 430014 1 LON OG 108 LayOVed 3SV8 13 8 9 YOOTS 1NOMJ HOvllv oH 13wovWg q34093 SI 1 M3ldV NALHOIL LAN 9 01 1104 N3S001 ALON WN Zr HONI 81S9 01 300801 ANY 03114408 ISN ONIOWS 39Nv 1 LNA HLIM LINN dO ONILSIXA OL 691 W3ldv NALHOIL ANY LAN 9ND001 1108 l340vH8 3SV8 13NI8VO 1 GNA NO TIVISNI 7 13411938 SI 38001 S310H 1330V48 ALON WN HONFE S96 OL 1 ANY SYVMCYWH 03114408 ISN QNILSIXA OL 2 9 LANIGVO V3 Wd 9NIOv4 SYL LINN 30 018830 NO S310H 4 13wovud dsvg TIVLSNI 31389NO9 JHL OLNI 7 40 HLd3A W
83. AWININ V OL L 9H SATOH TINA NOILYOOT WHY TYM NOY wl 1SV3llV 014 NO SlI340VH8 804 SNOILONYLSNI S438 LOvnNvIW MOTIOS 04114401 14 LSV311V 0 31 3 01 S8V1 L349V88 0014 LON 1N3TVAIQO3 HO 216 0901 YOHONY ONITING 4135 l3NI8VO 3JAON qasl13SWvs MLI c b HOHONV 0014 QG3aN3WIWOO3M SALON 34n9i4 ONIMOHONY OIWSISS WSLSAS dOL WN 10 AW 201 AW 0 LG aG CE 133048 vri WIS wea MOON G 9 Ne 11 UJ 25 121 4 INOWS 8126 AW 268 INN 30014 n LJ f 8 J Lea 1 3SV8 2r o 22227700 mem es I T LANISVO SNI9VdS 303 SS 7 2 310N 338 TYM ovg 9NIOVdS 133088 wel 4 wel KH 498 AP el rn 310N 388 Y00714 uva INN 569 WW 866 AW 966 AW 8 NW 866 25 wings Installation Dra le output breaker ing 100 250 amp STS2 with s Figure 14 Electrical field connections drawing Y 00121684 INVHOVIGO 3NIT 3NO 1nd1no WALSAS 2 2 s X O ego v8o C OO Y Y o N o 19 JOYNOS LNdNI SONOS V LNdNI 398n0S U N 89 SSTHONI 92r SI SLAN Wad 1 2 L LNAWAYINOZY 300801 JHL 7 Suva SNE
84. Allows users to access protected commands QUIT Modem only Ends the session and hangs up the modem Silences the horn SPT Displays all current setpoints SPTx Displays current setpoints for group x See 12 1 2 Configuring the STS2 via 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 STS2 via the Terminal The SPT command is used to configure the systems setpoints The SVT syntax for the setpoints con sists 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 depend ing on what they are use other input types For example System ID uses a text string nominal volt ages 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 a parameter Using an underline here to represent a space an example
85. 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 Complete the following steps to properly remove the 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 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 Static Transfer Switch 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 cabinet s 5 Check for any unsafe condition that may be a potential safety hazard After the STS2 has been inspected and no problems are found the unit can be moved to its installa tion location If using a forklift remember to lift the unit from the rear Location Considerati
86. CB3 is open 089 OUTPUT OPEN Output circuit breaker CB3A is open 090 51 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 AE 120 INPUT CONTACT 1 Input Contact is an optional alarm input The alarm name E 121 INPUT CONTACT 2 can be programmed with an alarm name from the Input 122 INPUT CONTACT 3 Contactor Isolator settings option under the Comm Options 123 INPUT CONTACT 4 See Configuring the Input Contact Isolator Settings on 124 INPUT CONTACT 5 page 95 The alarm is sent to Monitor DSP The LCD logs 125 INPUT CONTACT 6 the alarm with the programmed name Monitor DSP logs it 126 INPUT CONTACT 7 with the generic name which is how it is reported to the SVT 127 INPUT CONTACT 8 query 128 CONFIG MODIFIED A set point configuration has changed A E 129 PASSWORD CHANGED The password for touch screen access has been modified and saved 130 TIME REPROGRAMMED The system s time has been reset and saved A E 131 DATE REPROGRAMMED The system s date has been reset and saved A E 132 EVENT LOG CLEARED The event log has been erased A E 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 A E can be written without clearing one of the logs 75 Communicat
87. Compare the contents of the shipment with the bill of lading Report any missing items to the carrier and to Liebert Global Services immediately 5 Check the nameplate on the cabinets to verify that the model 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 Ifunitis 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 22 Unloading and Handling 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 STS2 models are contained in one cabinet The 800 1000 amp units are contained in two cabi nets that are connected together and shipped on one pallet Because the weight distribution in the cabinet 18 uneven use extreme care during handling and transporting The unit can be moved by forklift or pallet jack Se
88. Defined 1 Standard Set 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 Enab bitO 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 hexidecimal 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 13 Binary Hexadecimal Conversions Hex Hex Binary value Equivalent Binary value Equivalent 1 0 A 1010 0001 1 B 1011 0010 2 C 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 eac
89. Display or LED Display 113 15 2 9 RO 232 252 ue AO Re o pa ertet tete b dee abu te e toe ted trt Bn 114 15 2 10 Terminal Port Connections 114 15 2 11 RS 232 Interface 115 15 2 12 Maintenance 115 15 2 13 Buseless D6s1 one fs sc 0 YWREE MERE eR Re VERUS RR 115 15 2 TH OptlonS cds not kah Shu Sd REOR bte gu a ana 115 16 0 EVENT MESSAGE HELP 116 14 0 MAINTENANCE 5 27 Iesu AIDE epa ee teet piede e 137 17 1 Proper Tightening of Nuts and Bolts 137 LED Vesting the ST92 niassa ee RR O e s Ad RV PRU PEN 137 17 3 Changing the AirFilter 137 SUPPORT INFORMATION 138 PROGRAMMABLE RELAY BOARD SETTINGS 139 INPUT CONTACT ISOLATOR SETTINGS RECORD 141 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 F
90. ESL CE BOA DP NW A REPE S 15 6 9 Remote Source Selection Muere D ri Re 15 6 10 Key Lockout 15 6 11 Redundant Output 15 6 12 6 13 6 14 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 Input Junction Boxes and Cables au mead pa Fold ed ite uha 16 Seismic Floor Anchors 16 Seismic Floor uy bI DEA due VERD ROS 16 INSTALLATION 5 17 INTRODUCTION TO STS2 5 57 System Description ys y AE Bb be QURE IS 57 C 1 uet eR Tbe ER Re e ERO VR B d tat fter 57 8 1 2 Reliability and Agency Requirements 58 8 1 8 Factory Backup and Service 1 58 Modes of ODeratiOnd zou OR SRR BOSE DY OMI ONE VETAT SES 58 8 2 1 Normal Preferred 58 8 2 2 Pan lep snp Gen wb Up ees Wie qr cde OR RN ET e 58 8 2 9 ZDranster Inhibit xu oo e E Aue ese sepe n M UB REPE MS 58 8
91. Event Display The Event Display lists the condition of the STS2 in real time Both nominal system parameters and alarm messages are displayed in 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 dis played with four choices Siem System Ratings used to configure frequency voltage and currents settings for the STS2 Event Masks Event Mask allows you to configure system s response for events User Settings allows you to configure operations for the STS2 User Settings System Settings accesses another pop up menu to configure communication and system choices and the system ID 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 sys tem is initialized at the factory or under maintenance and should not be ch
92. INGS 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 STS2 Touch Screen Display 13 3 13 4 13 5 13 6 13 6 1 Mimic Display The Mimic display provides a color diagram of the operation of the STS2 This display imitates the power flow through the static transfer switch and indicates source status breaker status switch sta tus source voltage and current readings output power measurements and active alarm messages See Figure 49 on page 85 Event Controls The STS 2 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 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
93. INOH 808 LL COED 1 09 27 wings Installation Dra le output breaker ing 400 600 amp STS2 with s Figure 16 Electrical field connections drawing 00vcLcSd INVHOVIO 3NIT 3NO W31SAS 4 sao C veo eXo D 7 D o 1 1 A z 189 9 1ndNI 8 LNdNI V LAdNI SONOS WEN 89 SAT HONI 827 SI SLAN Nad b 2 b LNAWSYINDAY ANOYOL JHL Z Suva 5018 JHL OL SATEVO ONILOANNOO SLNN SH3HSVM 51108 2 SAGNTONI SNOLLO3NNOO ANNOYS ANY TVSHILOSN LAdLNO LAdNI 8 SI 3S8VAM QS VH 9 53003 19418 W907 NV IVNOLLVN HLIM 39NV Q3OOOV 38 OL SI TIY S T3ON3WINOO33 LON S318VO WANINNTV Y3ddO9 ANY WANINNTY r S318V9 LNdNI WO LINGNOO 311 VHVd3S V NI 38 GINOHS 3 18VO 104110 LIndaNOO 31Vsvd3s NI 38 LSAW 483MOd ANY TOSH LINOO 6 gov dads AZIS LINS OL SAOWSY S31V ld 55429 318VAOW3H 3 T8V TIIVAV AHLN3 318VO WOLLOS ANY dOl 2 SUALAWITIIN S3HONI NI SNOISN3IAIC TIY SALON V V NOILO3S MAIA 508 WHLNAN LAN Wad 2 1 A
94. 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 auto matic 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 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 60 Theory of Operation 9 1 5 9 1 6 9 1 7 9 2 9 2 1 Emergency Transfer ensure that power remains connected to the load the STS2 automatically performs an emergency transfer from one input source to the other when an outage occurs on the existing source The auto matic transfer takes place if the other source s voltage is within acceptable limits and regardless of the phase difference between the two sources Emergency transfers occur with a loss of power on the outp
95. L SALON XX 810018 c0 QHVO8 SININOO NOILOANNOO g 1 13 33S 5 ON NVOSALIS YAWOLSND ON V WWLAd LIS PSP PRE ALON 33S IN3GON TIVNH3LX3 OL 3 18VO SNILO3NNOOHALNI 8 d3Wolsno DUDUDDDUDD V lIV L33 33S IN33ON TVNH3JLX3 38 Installation Drawings Figure 27 Control wiring for the internal modem option 9H v00 LcSd QqHdvoaga SWINOO Vit 54003 1vOlH 10313 ANY IVNOLLVN H LIM 3ONVQOOOV NI 38 LSNW TIY 9 qavog SNINOO dO HOLIMS OILVLS dO INVNHOVIG NOIL VOO T NOILOANNOO 1OH LNOO OL 333 9 LINGNOO AWVS NI Q3NISINOO LON 5 SNI1H 9NISIM TOHLINOO ONIHIM H3MOd INOHA 31VeHVd3S 38 LSNW SH3H LO TOHLINOO 17 NOLLdO IN3GOW IVNS3 LENI SHL 9NISDOOIJ3NOO TVAINVIA 3ONVN3LNIVIN 8 NOLLVH3dO NOLLVTIVISNI OL SQHVONVIS L3NS3 LNI Ad SI HLON313HL HOLO3NNOO 9frld 318VO ANOHdA TAL ANY 3ZIS 38IM 2 AT31Vvsvdas qasaqao LSNW NOLLdO IN33OW TVNSH3LENI L SALON HO LO3NNOO LL H lt 3NIT3NOHd3T131 OL SNOILVOINNWANOD 3NETIN33OIN ao S31ON 33S 1 SNILO3NNOOSALNI Gariddns s3Wolsno 39 Installation Drawings Figure 28 Control wiring for the network interface card NIC option SNECGOW OL 3 18v9
96. MA 33S ALON V IIV L3d LH9IM Ola M3IA 9TH L3INOSI 1441 1 4 1014 47 Installation Drawings Figure 36 Installation drawing seismic floor stand 100 250A 0 88 00SLcSd SIlIVL3G Z00SLZSd LO0SLZSd 000S1ZSd S MA 33S LON ACIS LHOIY __ ub LNOJ 48 wings Installation Dra floor stand 400 600A Ing seismic Figure 37 Installation draw Q esd 0009LcSd MAIA WO LLOS L MIIA 5 v2 Srvi E 19809626 9782 16 006 19109628 Bi ays LOOIN Y SL7Z 48082 ove 19908628 979 ze os 19809626 LHOISH XVIN LHOISH LHOISH GNV1S 40 9 3191 LHOISH 2 AIX 6c 2 5871 1469 11 21 x 8681 1416 S L OLN Sg1 1491 SZ SW t 5 dAL 91 14 0 LAN OL gt dAL ANDYOL dHVMQOHVH NAM d vi o MAIA g vlad 1004 318v1 58141468 OL ANY H3HSVM 1V 14 5 3201 11146 M389S WWOPXGZ L ZLW ONISN GNVLS OL 1399 HOVLLY 395 788114 16 OL H3HSVM 1 14 ANY H3HSVM 9201 11148 MANOS dVO WWOEXOS L OLW 5 2515 OL LAMOVHE HOV LLV z009L2Sd TIV L3O L Sls S130 V8 LNOMSJ H3MOT JHL TIVLSNI 9 009 Z
97. OSSLIS 5 NOILdO OIN FOVAYSLNI MHOMLSN 3LON 33S NOILdO ANI 3 18VWNWV3SOtId HO NOI LdO HOLV1OSI LOV LNOO LAdNI ALON 33S NOILdO ANTH 318 VIAIWVHOOMd ALON 33S NOILdO 318 VIAIWVHOOMd NOILdO 193138 FOYNOS 310W3H aqasn 38 NYO SQHVOS AV T3 318VWNWV ISOtd OML dO WOWIXVIN 2 NMOHS SNOILdO TIVOIdAL 1 SALON 1 130 NOILVOO 1 NOILdO QSAOWSY HOOG LNO23 HLIM M3IA LNOHJ ONIYIM 1OH INOO zl ma 1 NOILVOOT NOLLdO 33 m 33 Installation Drawings Figure 22 Control connection location diagram 800 1000 amp STS2 008 LcSd NOLLdO JOVAYALNI WAGON TWNYSLNI ANY TIVNS3LLX3 NVOS3LIS GYVOE SININOO NOILdO OIN MYOMLAN SLON 33 NOILdO AVT38 3 18VWWV3SOtd YO NOILdO 1 1081 LOV LNOO LNdNI Z SLON 33 NOILdO 3 18VIAIWNVHOOMd Z SLON 33 1240 3 18VIAINVHOOMd NOILdO 193138 05 310W3H dasn 38 NVO Squvog Av T3H FTEVNWVYDONd OML JO WAIWIXVIN Z NMOHS 33V SNOILdO 1VOIdAL L SALON WLAG NOILV9OT NOILdO Q3AONN3H 1 4 MIIA LNOSJ 1 VLA NOILV2OT NOlLdO 33S 34 Installation Drawings Figure 23 Control wiring for remote source selection option
98. Operating Instructions for the Touch Screen Interface 10 4 1 Bypass Procedures for Source 1 To bypass the switch for Source 1 If you wish to bypass the Source 1 static transfer switch but Source 2 is presently active you must first transfer to Source 1 See Manual Transfer Preferred Source Selection on page 66 1 Verify 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 48 Remove interlock key from CB5 and place it in the CB4 interlock Open the alternate source input breaker CB2 Rotate and remove the interlock key Insert the key in the CB4 bypass breaker interlock Rotate interlock keys in CB4 bypass breaker interlock to retract interlock Close bypass breaker CB4 Verify the breaker status on the Mimic screen Open source input breaker 10 Rotate the interlock key and remove it to lockout the breaker 11 Secure the key per your site s lockout tagout procedure E Qv obo 12 Open output breakers CB3 and if supplied to remove power from static switch To return to the normal mode Remove the key from 5 and insert it in the CB1 breaker interlock Rotate key to retract interlock Close source input breaker Verify the Source 1 and CB1 breaker status on the Mimic screen Close output breakers CB3 and CB3A if supplied Verify CB3
99. 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 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 location of the Remote Source Selection option See 5 5 Remote Source Selection Wiring on page 12 and Figure 23 for information on the con trol 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
100. SHONI NI SHV SNOISN3WIG TIY ALIAV HO H3IN3O oon ODO TNO SALON A SNIMVHG 3NITLOO MAIA WO LLOS SH31N39 Wiz 619 ope AHLIN3 WOLLOS 41 SYSINSO Hp 318vO 10H1NOO 9v yg 94 V vlad 33S SUSLNIO Y C YALSVO 76S LNO J 881 Wal v 32018 LON OQ IV 044 9661 ALND HOLIMS 10103901 A3M 20 wings Installation Dra lon 400 600 amp STS2 with a key lockout switch opt Figure9 Outline drawing ON LOvLLCSd dO L dAL 081 6 9 Z KA tess X861 AHIN3 01 318VO 10 1 dOL 318VOg ge YIMOd TANVd ACIS LNOHLIM NMOHS LINN dO LNO H4 V 1lV L3q uai N 3dIS 9L 0 SALON 335 f 310H ONILNNOW dAl 9 1 VIC WIAZI 8 69 LINN JHL dO LHOISM JHL LYOddNs OL QNV LS HOO 14 NO 1S33 LSNW SYALSVO JHL qasn SI GNVLS HOO Al ASV LINN HLVANYSGNN S3 10H ONILNNOW LINN JHL OLNI 1 LSNW S1709 ONILNNOW GNVLS HOO TJ HO 9NIHOHONV OIINSI3S GACIAONd v 1 33S SATOH ONILNNOW qaqvatHi 42 882 3ZIS 318VSOdSIG 91715 OL N3dO ALIHM 440 ONITGNVH 3TIHM 1VOLLH3A dO 93G SL NIHLIM L3NI
101. STS2 from operating outside of toler ances 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 Response Time A dual level fast slow transfer threshold is used for under voltage detection to allow the 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 Environmental Requirements See 3 0 Location Considerations for details concerning environmental requirements for the STS2 111 Specifications 15 2 15 2 1 15 2 2 15 2 3 System Components All STS2 models provide two static transfer switches within one enclosure with the ability to transfer between two input sources to a single output All 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 STS2 18 housed in a freestanding enclosure The cabinet is 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
102. SVO d33y ONITGNVH 141104 31 vno3adv ATIVYENLONYLS SI WO LLO 9 S81 00Z4 LHOISM HOLIMS V009 XVN HH MM 90 HH NLE 02801 HOLIMS V00r HH MM r0 Z HH R L8 0269 104100 LV3H ATNO LNOUS NI GAYINOAY SS399V 5 ANY NOLLVTIVLSNI LSnVHX3 GAYINOAY LINN 3AOSV 3ONVSHV3TO NIIN NINZSY 8L SSHONI NI SNOISN3IWIG 77 WH3IN3O oon TNO lt SALON 918 lSnvHX3 0 9861 HOLIMS H3JSNVH L Ol LV1S NOILdO HOLIMS 1 nO3OO 1 HLIM dV 009 009 SNIMVG ANITLNO WO LLOS GCE SSH3LN3O 46 488 6 062 wa3lsvo 962 SYSLNAO 1 4 SH3lN3O 616 YALSVO v64 1 WOLLOS V IIVL3Q 33S 318VO9 1 1 NIV 3208 LON OG IV ALIAVHO HOLIMS 21 wings Installation Dra lon 800 1000 amp STS2 with the key lockout switch opt Figure 10 Outline drawing ON 10811254 MAIA dO L 889 dA 08 SNIMS 2 AH IN3 dO L 318V9 IOH NOO AH IN3 dO L H3MOd 92 009 MEZT MV 196 18 TANVd LNOHLIM NMOHS LINN dO 1 4 V IIv L3d VSL
103. SYVMGYVH q3l1ddns ISN LNOYS ONIOVA 39NV 14 LN38 HLIM LINN dO 3GISH3QONf NO 310H ONILSIXA OL 6914 13 0 v8 3SV8 L3NIBVO LNOYS TIVLSNI v q33093 SI L340V48 YALAV N31H9ILL ANY LNN 9NDI2901 L108 9NIT3A31N3SOO 1 ILON WN Z Lp 81996 OL 300401 3HVMQSVH Q3riddns ISN TIVM MOVE ONIOVA S8V L LINN dO 3GISH3QNf NO S3 10H ONILSIX3 OL 914 13 0 V8 3SV8 LANIGVO TIVISNI 6 31389NOO JHL OLNI aZ Y dO H Ld3Q WAWINIW V OL 1 914 S31OH TING NOLLVOO TI VIN TIVA MOVE WON 87 1SV311V Y00714 NO SL340VH8 HOO TH NOILISOd 2 SNOILONYLSNI SYSYNLOVANNVW MOTIOS aariadns LON LNSTVAINDA 24 L 3it OO HOHONV 4135 Qv3aH Q38 13SWVs MLI 2 1 HOHONV O0 14 Q3QN3AINOO3H L TvM MOVE SALON 3460913 9NIHOHONV OINWSI3S WALSAS MAIA dOL c9 1110 AN 299 11170 GL layovud WI 959 INOS p 24 m a J u r INO GLEE 11269 ONIOWdS m ALON 33S L 8 layovug g 2 HOO 4 ONIOVdS HOS 4 3LON 33S 24 wings Installation Dra 800 1000 amp STS2 ing hor draw Ismic anc Figure 13 Se 0 88 80811454 YOIHL SZ ANY 19315 010 Suv Sl13M0Vvu8 3SV8 13 893 1084 NV3H SI340vH8 0014 1 0 4 ONY uvas 38 M3Hll3 39NVISIGQ WN qauin 38 SI TYM 3018 ININ HONI 09 IN3S3Hd JAY STVM 308411 16
104. Table21 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 STS2 is less than 150 lbs sq ft 660kg m The required service access is only from the front of the unit The STS2 can be tipped 15 in any direction without falling over Castors Leveling and Seismic Anchoring The frame includes heavy duty swivel castors 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 meet seismic Zone 4 requirements See 4 0 Locating the STS2 and Figures 11 through 13 for instructions and details for installing seismic anchoring Cooling The STS2 100 600A units utilize convection air cooling for the enclosure with forced air cooling of the heat sinks The 800 1000 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 is installed behind the openings By opening the front door the filter can be changed easily without exposing personnel to high voltage The size of th
105. V 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 18 System Current Ratings Current 100 250 400 600 800 1000 110 Specifications 15 1 4 15 1 5 15 1 6 15 1 7 15 1 8 Grounding Refer to 5 3 System Grounding for specifications and instructions regarding grounding Electrical Requirements Table 19 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 1096 THD with notches and ringing transients 12596 for 30 minutes 100A 400A 125 for 10 minutes 600A 1000A 15096 for 2 minutes 500 for 0 25 sec Table 20 Unit Short Circuit Withstand Capability Overload Capability Unit Voltage Unit Amps Withstand Capability 100 250A 100kA 208 240V 400 600A 100kA 800 1000A 100kA 100 250A 65kA 380 480V 400 600A 100kA 800 1000A 65kA 100 250A 25kA 600V 400 600A 25kA 800 1000A 42kA Input Surge Suppression The STS2 is equipped with transient voltage surge suppression on each input for maximum surge suppression The surge suppression is capable of protecting the
106. VMQHVH WHOHONV Y00714 3N Y00714 8 Xe XOHddV aaQ4no3as SI L340 Vg W3ldv NSLHOIL LAN 9NDI901 L1OS 9NIT3A31 N3S001 ALON WN Z Lg HONI 8 199 OL 300301 Qariddns ISN LNOYS ONIOVA 39NV 13 LN38 HLIM LINN dO 3GdISS3QND NO S31OH ONILSIXA OL 914 LAMOVY 3SV8 LANIGVO 1 4 TIVLSNI F qasunoas SI LAWOVEE Waldv NSLHOIL ANY LNN 9NDI901 L108 9NIT3A31N3SOOT ALON WN Z LY HONI 8 199 OL 3000 1 Iariddns ISN TIVM MOVE ONIOVA S8V L LINN dO 3GISH3QNn NO S3 10H ONILSIXA OL 2914 LAMOVY 3SV8 LANIGVO TIVLSNI 31389NOO JHL OLNI cL 40 1 V 01 913 SATOH MEV TIVM WOH 87 1SV311V YOO 1S NO SLAMOVYE HOO 14 504 2 SNOLLOQHISNI SYAYNLOVANNVW MOTIOS aaridans LON LN3 IVAInO3 Z 1 3 OSS HOHONV 4135 Q3sr L3sWve MLI 0 800 14 QG3aN3HINOO3H 1 SALON ONIHOHONY OINSI3S W31SAS MAIA dO L l330VH8 HOO 1H LNO HJ zy TYM 3HVMQHVH 1319 dsvd l3NI8VO l3NI8VO 40 1NOH3 l3M0Vua ASVa l3NIS8VO HV3H TIVM yva 8186 11268 m fa SNIOVdS HOS UH U 31ON 33S l1340vu8 pr 22222108 2 OO a NEED i b AN 4 ALON 33S TIVM MOVE 28 s NN SEO
107. VSHO Od 9NISHDOOIJ3NOO TVONVIA FONVNALNIVI 8 NOLLVH3dO NOILVTIVLSNI OL H3H3H Q3N3dO ATIVWHON ON 035010 ATIVINHON ON NOWINO2 O 318V1 33S I3NNVHO Yad SLOV LNOD O IWHO4 HLIM ST3NNVHO TVN9IS 8 54 1 NOILdO QHVOS AV T38 3 18VININVHOOMSd 2 GL 549019 TVNIINSH3 L 38V SLNIOd NOLLO3NNOO ONIYIM TOSH LNOO YAWOLSND L SALON Zf 8 LLP NO CASN LON 91 Nid 3LON pe g St vL eb 9k V ct tb Ob za fg 6 8 2 6 7 V L9 9 v 89 pe 2 6 1 JY Sb vb er 51 g es TE Ob Ob 19 6 8 2 6 2 jg 9 S v 9r Y pe 6 1 g St vk eb Si V cb bb o 01 01 18 6 6 7 Y 9 S 9 v g pe Z L er V oN on o ON Nid THNNVHO Alavi 8HO HO 9HO SHO CHO HO LHO PAR LZ QHVO8 AV T38 3 18VWINVHOOHd 36 Installation Drawings Figure 25 Control wiring for the input contact isolator board option 008 LcSd 83009 1VOIH1I9313 W907 ANY H LIM 3ONVQOOOV NI 38 LSNW ONISHIM TV 8 d18vO dq3aNvals a3 181X3 14 9MV9 Vit SYLIN 291 L3 009 HLON31318VO WOWIXVIW 2 00 39V L1OA IVNOIS 9 HOJV OSI LOVLNOO LNdNI dO NOI LVOO 1 OH IWVHO9VIG NOLLO3NNOO OS LNOO HOLIMS H33SNVHL 16 OL S LINGNOO AWVS SHL NI Q3NISINOO 38 LON 5 SNN
108. Y TOSHINOO SENIHIM H3MOd 311 VHVd3S NNY 38 LSNW SH3H LO 9NISIM 1Y F NOILdO QHVOS8 HOLV IOSI LOVINOO 1 4 9NIHOOIJ3NOO TVINVIN 3ONVN3LNIVIN 8 NOLLVH3dO NOLLVTIVLSNI OL H3H3MH S3SVSS3N Wav TV 5 sod SLOVLNOOS N3dO ATIVIWSHON Q3GIAOd YAWOLSND 2 318Vv L 33S 9 STVNIIASH3LL SLNIOd NOLLO3NNOO TOHLNOO YSWOLSND SALON 181 318V L XX cV0018 c0 QHVO8 HOLIV IOSI LOVLNOO LAdNI uNOILOANNOO YAWOLSNSD ON 37 Installation Drawings Figure 26 Control wiring for comms board see Figure 27 on page 39 for internal modem wiring 00 LcSd g vlad 9991 28 SALON 33S a NVOSALIS OL 318VO aariaans d3Wolsno S3qQOO 1VOIHI93 13 WOOT IVNOILVN HLIM 3ONVQHOOOV NI 38 LSNW TIY 9 duvod SININOO dO HOLIMS 5 OILVLS JO INVHOVIGO NOILVOO NOILO3NNOO OL H323H S LINGNOO AWVS NI Q3NISINOO 38 LON 5 TOH LNOO SENIHIM H3MOd 3 LVHVd3S 38 LSNW SH3HLO TOHINOO TIV r quvosg SNWINOO AHL 9NIH OOIJNOO TIVONVIN AONVNALNIV 9 NOLLVH3dO NOILVTIVLSNI 01 H3d3H LNIYYNO ADVLIOA IWNOIS 2 WAWINIW A00 SMV 3 18VO GALSIML HLIM SYALAW 00 1334 000 HLON3T1 318VO INQIWIXVIN
109. 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 STS2 to the floor stand and to the concrete floor The seismic floor stand 18 shipped separately from the unit when ordered See Figures 33 through 44 for instructions and details for installing seismic floor stand Power and Control Wiring 5 0 POWER AND CONTROL WIRING 5 1 All power and control wiring should be installed by a qualified electrician All power and control wir ing must comply with the NEC and applicable local codes Unless otherwise labeled use the recom mended tightening torque as shown in Table 25 Torque tightening The busbars are accessible through the front of the 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 Input And Output Power Connections If the unit 18 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 input junction boxes are ship
110. adO HLIM LINN dO Y3ddN MAIA LNO J AV 1dSIG 91 1 V IIV L3G 33S 41 Installation Drawings Figure 30 Outline drawing for input junction box Ady 006 OL 98 iow evel ze logs ee 129 1 06 90 91 v009 vosz GOOLLZSd 0 28 OL 98 4215 sz g 91 6 19291 vie 9 soe ZL Spr LL 19861 vi 19091 91 V00L ww S3HONI VLVO TVNOISN3MWIG LNdANI SLINn 009 ANY V00r NO GASN 34V S3 18VO T3TIVHVd NOILV2OT1 9NIMVSG SNOILOANNOO 91315 1VOTH LO3 13 33S SHvasfia LAdNI IHL OL SHL 193NNOO O AHOLOVJ S 318VO Z HOVA 3NO 6 S3XO8 L SALON ATAWASSV a 1avo 1 8 AYOLOVA dO NOILV2OT1 390718 YMOd ANNOYS 50114 JAIM 3svHd SH3HLO AVM3OVMH JO NOLLO3NNOO YAWOLSNO Y04 NOILV2OT1 Q3QN3AINOO3H 42 Installation Drawings Figure 31 Color LCD touch screen display 000 54 SNOILdO NNAW TANVd AV 1dSIG OOHd dA8 0 dALYVLS 5 5 EJ Lg 03096 A8c39Wnos SQv31 I 39Hnos SH3jX 0 ayol 08 LAdLNO ZH00 vo VO AS6L AS6L AS6L VO 29 c 393 01OS ZH 0 09 vo
111. ader It is configured as DTE Table 23 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 114 Specifications 15 2 11RS 232 Interface Parameters The service terminal interface parameters are the following settings and cannot be changed Table 24 RS 232 Settings 15 2 12Maintenance Bypass Parameter Setting Interface RS 232 Using EIA Voltage Levels Baud Rate 9600 Parity 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 The STS2 is configured to allow the unit s electronics to be bypassed to either input source for mainte nance without interruption of power to the load The STS2 is furnished with key interlocked maintenance bypass breakers to configure the bypass 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 By
112. age 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 S2 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 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 131 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 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 co
113. ame 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 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 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 83 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 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 wri
114. an 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 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 originat ing 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 triggered the system automatically calls the specified tele phone numbers through the modem For example a page could be sent or an event could be sent to a external terminal via the modem See Communication Interfaces on page 76 for more information on configuring communications options Event Log The selected event 18 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 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 setti
115. and 400 600A 0 ed 60091654 SDyldz V 1lV13GQ 13 LNOS4J H3MOT1 H3HSVM 1 14 ZLW H3HSVM 1148 ININOPXSZ L ZLIN MINOS SHOV1d OLN H3HSVM OLN H3HSVM 11148 ININOEXS L 0LIN MINOS s3ov1d M3IA 5 LHOTH YYY c ld 51015 L3M0VH8 OLNI ACIS 01 59 1 13 0 V3 H3ddfl l390VMH8 2518 H3MO T NV3H 2515 H3ddf V3 S IIV L3G 009L2Sd L009LZSd 0009 8 S MA 33S ALON LH9TH Sls M3IA 5 1441 LNOYS ld 51 Installation Drawings Figure 40 Installation drawing seismic floor stand 400 600A 0 88 c009L Sd 81130 20091284 L009L2Sd 0009 264 S MA 33S ub ZE LON MAIA LNO4 X00714 Q3SIVH 52 wings Installation Dra floor stand 800 1000A Ing seismic draw Figure 41 Installation 0 8H 0007L2Sd MIIA OIH 13INOSI sco se og 19060608 1 LHOI3H INVIS dO 58114698 11 01 8581 1416 91 01 591 149 SZ S81 15 07 1nN 0 L LYVHO d3HVMQOHVH 5971 14 S OL H3HSVM ANY H3HSVM 201 11148 M389S dVO 1 ONISN GNVLS OL L33OVHg HOVLLV 58114 16 OL 30080 H3HSVM 1V14 H3HSVM 3201 11146 MIYOS WWOEX0S L OLW ONISN
116. and fault detection to identify operational prob lems 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 106 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 fre quency 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 137 Maintenance SUPPORT INFORMATION To contact Liebert Global Services for information or repair service in the United States call 1 800 LIEBERT 1 800 543 2378 Liebert Global Services is available to assure fast repair of your unit with minimal downtime Liebert Global Services offers a complete range of start up services repair services preventive maintenance plans and service contracts For repair or maintenance service outside the 48 contiguous states contact Liebert Global Services if available in your area For areas not covered by Liebert Global Services the authorized dist
117. anged by the user Event Masks The 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 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 53 2 Select the mask settings for each fault and alarm a Select YES to enable the setting b Select NO to disable the setting 3 Select SAVE to keep the settings Figure 53 Event mask dialog box User Settings The User 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 2 Select CONFIG Select USER SETTINGS from the pop up menu The User Settings dialog box is displayed See Figure 54 The top six buttons access a series of sec ondary dialog boxes to configure the various settings 89 STS2 Touch Screen Display Figure 54 User settings dialog box User Settings Source 1 2 Set Points Manual Xfer Max Phase Angle Deg Frequency Trip Point Hz Retransfer Delay Sec Aud
118. ard 121 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 on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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 termi
119. ation on the ICI If your STS2 has the ICI option installed list the settings below for future reference If control power is lost in the STS2 the settings are not saved Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 141 Maintenance 142 0 Liebert POWER PROTECTION STATIC TRANSFER SWITCH 2 The Company Behind the Products With over a million installations around the globe Liebert is the world leader in computer protection systems Since its founding in 1965 Liebert has developed a complete range of support and protection systems for sensitive electronics Environmental systems close control air conditioning from 1 to 60 tons Power conditioning and UPS with power ranges from 300 VA to more than 1000 kVA Integrated systems that provide both environmental and power protection in a single flexible package Monitoring and control from systems of any size or location on site or remote Service and support through more than 100 service centers around the world and a 24 7 Customer Response Center While every precaution 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 2005 Liebert Corporation All rights reserved throughout the world Sp
120. before proceeding 2 0 Unpacking and Inspections provides instructions for inspecting unloading handling and removing the STS2 from the shipping pallet 3 0 Location Considerations provides information regarding environmental considerations for where the STS2 is installed 4 0 Locating the STS2 provides instructions for leveling the STS2 and anchoring the unit to the floor should that be required 5 0 Power and Control Wiring provides instructions wiring the STS2 for power and control con nections 6 0 Options lists the options available for the STS2 7 0 Installation Drawings provides outline seismic and electrical field connection drawings required for installing the STS2 8 0 Introduction to 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 turn ing the system on and off completing a maintenance by pass 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 termi nal and modem commands 13 0 STS2 Touch Screen Display provides instructions for using the HMI touch screen interface for monitoring and managing the STS2 14 0 Operating the LED Display STS2
121. ched and require the system to be repaired and reset to restore normal operation On Off Sequence The 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 1s on Detailed Component Description Controls Operator Interface The 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 pass word 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 61 Theory of Operation 9 2 2 9 2 3 Hardware The 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 STS2 unit is equipped with either a color LCD touch screen or a panel of LEDs and push buttons The STS2 can have optional communication ports installed See 6 0 Options and 12 0 Com munication Interfaces on page 76 for more information on communication options On LED Display un
122. cted preferred source breaker and switch status and alarms are indi cated on the Mimic screen Figure 46 STS2 touch screen display Mimic Sources SOURCE 2 A B B C C A ALTERNATE 195v 195V 195 DA DA 0 0 Event controls T SILENCE Switch 0 Liebert KEEPING BUSINESS IN BUSINESS 5 EMERSON Network Power Event display Y CONFIG 1065 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 Static Transfer Switch is on 9 Close Output Breaker CB3 and CB3A in redundant output configurations 10 Verify CB3 the Output box and the Load box are highlighted indicating that CB3 is closed and the Output and Load are energized NOTE For redundant output switch units descriptions 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
123. cts The con tacts are numbered left to right Table 6 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 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 adjust ments are not necessary If the unit needs to operate at a voltage other than what is listed on the nameplate contact Liebert Global Service or the local Liebert representative Table 7 provides trans former tap information Table 7 Terminal block 1 and terminal block 2 wire connections Connect t Connect F1 F2 F3 F4 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 7 ensure that the wiring for the control transformers matches the input voltage for the unit Improper wiring could result in blown fuses 12 Options 6 0 OPTIONS This section discusses the options availab
124. cy for Source 1 is running outside the acceptable operating range as set in the Frequency Trip Point under User Settings An S1 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 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 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 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
125. d 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 An RS 232 serial port is provided to allow an external terminal to be connected as another user inter face 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 CAUTION Before 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 start up by qualified personnel are strongly recommended Contact your local Liebert representative or Liebert Global Services at 1 800 543 2378 to arrange for equipment inspection and start up After the initial equipment start up the following operating guidelines can be used for standard equipment operation These guidelines should be reviewed for any special equipment modifications special site conditions or company policies that may require changes to the standard equipment oper ation All programmable functions are preset at
126. ditions 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 106 Operating the LED Display STS2 14 2 3 Maintenance Bypass The 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 mainte nance 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 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 1s connected In the event of source or switch failure the unit should be bypassed only to the current input source Bypass Procedures for Source 1 If transfer to Source 2 is not desired 1 Follow the instructions to transfer the load to Source 1 if it is not the currently used source 2 Remove the interlock key from CB5 and place it in CB4
127. djacent to the Secondary Line choice 94 STS2 Touch Screen Display 9 Select INIT STRING to configure the initialization string This string configures the parameters of the modem This setting only needs to be configured if an external modem is used Check your modem s documentation for this setting The string for the internal modem set by the manufacturer and does not need to be changed 10 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 An internal modem only supports 2400 bps 11 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 is 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 12 Configure AUTO DIAL IN Auto Dial In allows a user to dial into the 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 13 Configure AUTO DIAL OUT Auto Dial Ou
128. e For convenience instructions for the bypass procedure can be displayed on the touch screen by select ing 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 48 67 Operating Instructions for the Touch Screen Interface Figure 48 Gate board viewing slot locations Touch Screen di D Viewing Slot for M the Source 1 Viewing Slot for Gate Drive Board the Source 2 Gate Drive Board P GREEN LEDS ON THE GATE DRIVER BOARD sS GREEN LEDS ON THE GATE DRIVER BOARD ARE VIEWABLE THROUGH THIS SLOT INDICATE THAT THE STS IS ON SOURCE 2 ARE VIEWABLE N THROUGH THIS SLOT N INDICATE THAT THE N STS IS ON SOURCE 1 N 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
129. e 2 2 2 Unit Preparation on page 5 for instruction on removing the STS2 from the pallet Unpacking and Inspections 2 2 1 2 2 2 2 3 Handling Considerations The static switch 1s 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 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 Ibs 354 kg 400 600 amp 1200 Ibs 544 kg 800 1000 amp 2500 165 1134 kg Plan the route Review the route over which the unit will be transported to its installation loca tion 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
130. e LEDs to monitor the STS2 plus selection buttons to choose the preferred source Figure 63 provides a breakdown of the front panel Table 16 on page 104 defines the LEDs and the push buttons on the display Figure 63 LED display A J B PS211002 Rev 0 103 Operating the LED Display STS2 14 1 2 LED and push button description The following table defines the LEDs and pushbuttons in the LED display Table 16 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 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 C 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 l
131. e 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 1s only available for the LED units and is set through the RS 232 port See Setting Event Masks with the Terminal on page 83 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 a event If the front panel of your STS2 contains LEDs and push buttons instead of the touch screen 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 LED Display STS2 for more information about the LEDs Table 9 Event Messages ID Alarm Message Description Cause Action 001 S1 SCR SHORT One or more of the SCRs for Source 1 have shorted and D F AE failed 002 S2 SCR SHORT One or more of the SCRs for Source 2 have shorted and D F AE failed 003 51 SCR OPEN One or more of the SCRs for Source 1 is open D F AE 004 S2
132. e filter is 1 in x 25 in x 25 in 2 54 cm x 63 5 cm x 63 5 The air exhaust is through the top of the unit 112 Specifications 15 2 4 15 2 5 15 2 6 15 2 7 15 2 8 Access The 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 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 replace able 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 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 pow
133. e present switch status informa tion all monitoring parameters and all active alarms The Comms Board is equipped with a modem interface for remote reporting of the present switch sta tus 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 desig nated 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 Internal Modem The Internal Modem is an option that must be ordered separately An external modem is available from third party sources The Internal Modem is capable of dialing out from the STS2 or accepting incoming calls and connecting to a remote terminal or computer Using an ASCII Query and Answer format the modem connection can be used to view system status and alarms The modem provides all information normally available on the LCD display of the STS2 No control functions are available via the modem such as making transfers selecting a preferred source or changing configurations The modem can also be configured to dial out two different telephone numbers any combination of modem or pager numbers The con
134. e unit from a terminal type CA and press RETURN on your keyboard 127 Event Message Help Text 51 I PEAK Current Peak on Source 1 The peak current from Source 1 has exceeded the set point as defined in the 1 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 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 1 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 52 Current Peak on Source 2 The peak current from Source 2 has exceeded the set point as defined in the I PK Xfer Lockout setting under User Settings Transferrin
135. e used they either can be shipped with the unit or shipped 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 Static Switch 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 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 30 for wiring details For preparation purposes the following tables provide the dimensions and wire sizes for the input junction boxes Table 4 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 5 Input junction box terminal wire size range Switch Rating Power and Ground Lug Wire Range 100 amp 6 to 42 0 AWG 250 to 600 amp 2 6 AWG to 2 500 kcmil 10 Power and Control Wiring 5 3 System Grounding Equipment grounding Grounding is primarily for equipment and personnel safety although proper grounding also enhances equipment performance input and output power feeds mus
136. ecifications subject to change without notice Liebert and the Liebert logo are registered trademarks of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners SL 20620 6 05 Rev 5 UsER MANUAL Technical Support Service Web Site www liebert com Monitoring 800 222 5877 monitoring liebert com Outside the US 614 841 6755 Single Phase UPS 800 222 5877 upstech liebert com Outside the US 614 841 6755 Three Phase UPS 800 543 2378 powertech liebert com 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 Italy Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco PD 39 049 9719 111 Fax 39 049 5841 257 Asia 7 F Dah Sing Financial Centre 108 Gloucester Road Wanchai Hong Kong 852 25722201 Fax 852 28029250 EMERSON
137. ed C Common Note Pin 16 not used on TB1 TB2 and TB3 6 2 Optimized Transfer When the STS2 18 used as a primary side switch on the primary of an isolation transformer opti mized transfer greatly reduces the transformer magnetization current during automatic transfers through a new transfer control algorithm The Liebert algorithm patent pending 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 trans former 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 13 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 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
138. elect 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 STS2 from the menu bar From the menu bar select STARTUP PROC These instructions are also provided on 10 1 Normal System Turn On for Color Graphical display units and 14 2 1 Normal System Turn On for LED Display units Bypass Procedure You can access instructions for bypassing the static transfer switch from the menu bar From the menu bar select 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 Dis play Panel This same help is also available in 16 0 Event Message Help Text Logo The Logo menu choice shows the Liebert and Emerson logo in the Display panel Cleaning the LCD Touch Screen If t
139. ence 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 STS2 and quickly assess problems Preferred input 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 STS2 through a modem a network card a program mable relay board a contact isolator or an RS 422 port to Liebert s SiteScan Redundancy Redundancy within the 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 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 nec essary to run the STS2 and control all transfers Redundant fans are provided if a primary fan fails The redundant fa
140. enote 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 1n hexidecimal 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_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
141. ent 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 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 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 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 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 mess
142. er 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 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 bypassing 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 STS2 logic See the Circuit Breaker Schedule in Figure 20 Cable Entrance Removable conduit termination plates are provided in the top and bottom of the 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 Col
143. erating Instructions for the Touch Screen Interface for instructions these procedures 14 2 1 Normal System Turn On If your STS2 is connected to 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 turn on your STS2 The LEDs provide the basic information required to ensure proper operation To monitor metering data use a PC terminal 1 Ensure that all STS2 breakers CB1 CB2 CB3A if supplied CB4 and CB5 are in the OFF open position a Ensure that the key interlocks for CB1 and CB2 have their bolts retracted b Ensure that the key interlocks for CB4 and CB5 have their bolts extended thus preventing CB4 or CB5 from being turned ON c Ensure that the circuit breakers respective LEDs are off Source input power should be applied to both STS2 inputs Check that the green LEDs for each source are lit 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 5 The green LED monitoring CB1 turns on Close CB2 The green LED for CB2 turns on 105
144. erred input source to the out put load The unit monitors the voltage current and phase of each source to ensure that both are oper ating 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 the 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 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 STS2 includes key interlocked maintenance bypass breakers that allow either input source s elec tronics 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 ava
145. es pro vide 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 set tings to be customized Figure 50 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 History Log 2 System Settings omm Options ystem Options ystem ID Q 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 51 Keyboard and keypad displays KEYBOARD ENTRY TOOL Backspace MIN 1 cree Ei 21 2 2 2 al al 41 d 3 4 5 B 8 0 lt a Cancel OK Cancel 86 STS2 Touch Screen Display 13 2 1 Security Because the 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
146. essful connection is made Upon success ful connection the system transmits the status information and then hangs up System status and history information can be requested and date and time can be changed through the modem The modem commands are shown in Table 10 on page 77 See Figure 27 for more information on the internal modem Network Interface Card NIC optional the NIC provides connectivity to any TCP IP based Ethernet network to allow the device to communicate with network management systems NMS via SNMP Events can be transmitted to the NMS to provide remote status monitoring plus fault and alarm detection The NIC includes an RJ 45 port for an Ethernet connection via Category 5 cable The NIC can also integrate the system with an existing Building Management System 5 out of band monitoring using Mobus a standard multi drop protocol The NIC has redundant communication paths that make it possible to connect to a BMS using Modbus while simulta neously communicate to a NMS through SNMP See Figure 28 for more information on the NIC If you have questions about the NIC refer to the OpenComms Network Interface Card Installation and Users Guide Input Contact Isolator ICT Board optional 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 95 for instructions on config uring the connecti
147. 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 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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 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
148. g 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 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 1 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off t
149. h 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 12 1 4 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 hexidecimal val ues 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 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 1s enabled while a minus sign means that mask is disabled Refer to 11 1 Event Mask on page
150. he 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 128 Event Message Help Text LOAD ON ALT SOURCE 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 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm
151. he 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 LED Display STS2 14 0 OPERATING THE LED DisPLAY STS2 Certain models of the 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 STS2 Touch Screen Display You can use a PC running terminal emulation software connected to the RS 232 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 14 4 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 14 1 1 Front Panel Controls The front panel contains th
152. hen 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 currents 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 seq
153. igure 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 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 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 9 Typical one line diagram of two PDUs and a static transfer switch 11 Outline drawing 100 250 amp STS2 17 Outline drawing 400 600 amp STS2 18 Outline drawing 800 1000 amp STS2 19 Outline drawing 100 250amp STS2 with a key lockout switch option 20 Outline drawing 400 600 amp STS2 with a key lockout switch option 21 Outline drawing 800 1000 amp STS2 with the key lockout switch option 22 Seismic anchor drawing 100 250 amp 5 52 23 Seismic anchor drawing 400 600 amp 5 52 24 Seismic anchor dra
154. ilable from the touch screen and are discussed later in this manual Operator Controls The 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 dis plays the current status of the unit System parameters are displayed and help is available to define events See Figure 45 below and Figure 31 The touch screen menus allow the operator to initiate source transfers view event and history logs and view bypass and other operational instructions Figure 45 STS2 touch screen display Event Display Mimic SOURCE 2 A B B C C A 195v 195V 195 DA 0 OA Event controls STLENCE i Liebert KEEPING BUSINESS IN BUSINESS Display Panel 0 amp Help Screen EMERSON Network Power Y CONFIG LOGS SOURCE XFERS STARTUP PROC PROC HELP LOGO Menu Options Touch screen control buttons allow you to reset alarms silence the audible alarm review configura tions 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 pre ferred source and do manual source transfers LED display units do not have the color LCD display Instead of the touch screen these units are monitored by a series of LEDs and controlled by a series of push buttons Both un
155. ings for Programmable Relays Relay Setting Definition SOURCE 1 FAIL Source 1 failure 2 SOURCE 2 FAIL Source 2 failure 3 BYPASS 4 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 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 set ting 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 static transfer switch continuously checks the status of the items defined for each contact and updates the state of the relay To configure your programmable relay boards for user defined settings 1 Select PROG RELAY BOARD x from the Comm O
156. interlock 3 Open the alternate source input breaker CB2 The CB2 LED is turned off Rotate and remove the interlock key Insert the key into the CB4 bypass breaker interlock Rotate interlock keys in the CB4 bypass breaker interlock to retract the interlock Close bypass breaker CB4 The LED for CB4 turns on Open source input breaker Rotate the interlock key and remove it to lockout the breaker The LED for CB1 turns off 10 Open the output breakers CB3 and if supplied to remove power from static switch The LEDs for CB3 and CB3A if supplied turn off 11 Verify that the output OUT LED is lit Power is now flowing directly from the source to the load without passing through the static transfer switch DIO so oo return to the normal mode 1 Verify that the LEDs for Source 1 are on indicating that the source is supplying power and is operating within acceptable tolerances 2 Remove the key from 5 and insert it in the CB1 breaker interlock Rotate key to retract interlock 4 Close source input breaker CB1 The LED for CB1 turns on 5 Close the output breakers CB3 and if supplied The LEDs for CB3 and CB3A are lit 6 Open bypass breaker CB4 Rotate keys in CB4 interlock to extend interlock The LED for CB4 is turned off 7 Remove proper key from CB4 interlock and insert it in CB2 breaker interlock Rotate the key to retract CB2 breaker interlock 9 Close source inpu
157. io Level Display Brightness Auto Rexfer Enable Auto Restart Enable I Peak Reset Save H LO E BiG YES NO YES NO MAN Cancel m 8 Source Set Points The Source 1 2 Set Points allows you to configure trigger points for each input source 1 or 2 for the 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 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 voltage Fast UV Setting if the voltage drops below this set percentage of the nominal voltage the 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 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 STS2 transfers OV Setting if the voltage exceeds this set percentage of the nominal voltage for the period of the OV detection delay
158. ion Interfaces 12 0 COMMUNICATION INTERFACES 12 1 The 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 29 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 10 Several other communications options are also available Those options are located a Communica tions 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 Com munications compartment The communications options listed below reference the control wiring drawing for each option Internal modem optional the connection to this modem 1s through a standard RJ 11 port This port automatically dials the programmed telephone number when a designated alarm occurs Automatic dial attempts are made to the first phone number at periodic intervals for 30 minutes After that time auto dial attempts are made to the second phone number at periodic intervals for the next 30 minutes The process is repeated until a succ
159. it when source transfers are inhibited G Source transfer inhibited locked out by a hardware condition Connect a PC terminal to the 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 M button Symbol to indicate the K and M L must be pushed 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 STS2 N Red Alarm present Connect a PC terminal to the STS2 to locate the exact cause See 12 0 Communication Interfaces for PC terminal commands A green LED is lit if CB1 is closed indicating power is flowing to the 1 Green CT clos q static transfer switch from Source 1 A green LED is lit if CB2 is closed indicati
160. its the RS 232 interface 18 used for configuration and status and event log monitoring The RS 232 interface can also be used with the Color Graphical Display units if nec essary Firmware The operator interface enables you to monitor the 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 set points 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 start up shut down 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 report changes in event condition states If the event condition s state changes from inactive to active a new event is detected If the transition 1s from active to inactive the event con dition has
161. its can be accessed from a terminal or a PC running terminal emulation software that 18 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 instructions on using the RS 232 interface 59 Theory of Operation 9 0 THEORY OF OPERATION 9 1 9 1 1 General Description The STS2 contains all the equipment necessary to prevent an interruption in power flow to the AC load should your primary source fail STS2 Static Transfer Switch The 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 avail able 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 pre ferred source should fail or if a manual transfer 18 initiated The unit uses Silicon Controlled Rectifiers SCRs connected in paralleled 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 trans fer the AC load to the alternate input source should the preferred source fail The switching action is a very fast
162. l type CA and press RETURN on your keyboard S2 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 audible alarm if so configured If you are accessing the 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 STS2 system from a terminal type CA and press RETURN on your keyboard S1 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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 STS2 system from a terminal type CA and press RETURN on your keybo
163. le for the STS2 The communications options are also dis cussed in 12 0 Communication Interfaces 6 1 Programmable Relay Board The Programmable Relay Board PRB provides a means to trigger an external device when an event occurs in the STS2 Each PRB has 8 channels Each channel has two sets of Form C dry contacts rated 1 Amp 30 VDC or 250 mAmp 125 VAC Any alarm event can be programmed to any channel or channels Up to ten 10 events can be pro grammed 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 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 8 provides the PRB pinout Table 8 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 B 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 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 TB4 B 1 3 1 2 3 Key N O Normally Open Normally Clos
164. llows you to configure the communications settings for the STS2 Select COMM OPTIONS from the System Settings Menu The Comm Options dialog box is displayed See Figure 56 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 con figuration dialog box The instructions for configuring the communications options are provided in this section Figure 56 Comm options dialog box Comm Options Modem 2 Pager 2 Input Contact Isolator ry Prog Relay Board 1 2 Prog Relay Board 2 9 Network Interface Card 5 5 Save Cancel Option buttons 93 STS2 Touch Screen Display Configuring the Modem The Modem dialog box allows you to configure the optional internal modem or an external modem that is connected to the static transfer switch Only one modem can be utilized by the STS2 The dialog box contains a series of choices that access either a keypad or a secondary dialog to config ure 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
165. m could be indicated by naming the button FAN Select OK on the keyboard to keep your label Select DELAY A keypad is displayed prompting you for a delay time in seconds for a condition to exist before the alarm is triggered Enter the delay value The range for the values are from 0 zero to 99 9 seconds Select OK on the keypad to keep your setting The value you entered is displayed in the field adjacent to the corresponding input contact Repeat steps 2 to 7 for each input contact 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 Enter the settings in Input Contact Isolator Settings Record on page 141 This information is not saved if control power is removed Select OK in the Comm Options dialog box to activate the settings 96 STS2 Touch Screen Display Configuring the Programmable Relay Board Settings The STS2 can contain up to two Programmable Relay Boards PRB that can trigger an external device when an event occurs in the static transfer switch 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 DEFINED SET The STANDARD SET are the factory configured settings The STANDARD SET for the Programmable Relay Board settings are Table 15 Standard Sett
166. n Event Masks Table 11 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 12 String Certain settings are represented by alphanumeric character strings such as setting the System Model Number to 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 1 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 page 81 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 83 for instructions on configuring Event Mask parameters Table 12 shows the various groups the settings contained within
167. n page 9 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 Figure3 Typical static transfer switch one line diagram SOURCE 1 SOURCE 2 pede e lt gt b OUTPUT Power and Control Wiring 5 2 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 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 STS2 molded case switches The STS2 input and output power and ground and neutral bus bars accommodate a wide range of wire sizes The STS2 bus bars accommodates standard 2 hole lugs Table 3 Input output conduit plate specifications Rating Max 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 STS2 Two input junc tion boxes and the associated flexible 10 foot long 8 meter input cables are provided with this option This option 1s available only with bottom cable entrance typically when the unit 1s located on a raised floor If the input junction boxes will b
168. n your keyboard 118 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 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 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 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 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 di
169. nal 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 on 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 RETURNRETURN on your keyboard to turn off the audible alarm Contact Liebert 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 122 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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
170. nection to this modem 1s through a standard RJ 11 port See Figures 21 and 22 for the location of the internal modem See Figure 27 for more information on the internal modem Programming the modem is performed through the touch screen display see Configuring the Modem on page 94 for details The modem commands are shown in Table 10 14 Options 6 7 6 8 6 9 6 10 6 11 Network Interface Card NIC An OpenComms Network Interface Card NIC enables the STS2 to communicate to a network man agement system NMS The NIC provides the internal hardware and software to communicate via SNMP to any I P based Ethernet network through an RJ 45 connector using Category 5 cabling The NIC 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 SNMP A terminal block provides the connection to Modbus See Figures 21 and 22 for the location of the NIC See Figure 28 control wiring information If you have questions about the NIC refer to the OpenComms Network Interface Card Installation and Users Guide 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 solfware conneted to the
171. nfigured 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 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned n
172. ng power is flowing to the 2 Green static transfer switch from Source 2 3 Green CB3 closed A green LED is lit if the output breaker switch is closed A green LED is lit if the output breaker switch is closed CB3A is pA Green CBSA closed installed on units with dual output breakers 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 LED Display STS2 14 1 3 Event Controls When an alarm is triggered a red LED 18 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 STS2 enables or disables all push button inputs except for the alarm 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 64 Key lockout switch Changes disabled B 1 Changes enabled 14 2 Operations This section discusses the system turn on shut down and bypass procedures for LED based STS2 If your unit has an LCD touch screen see10 0 Op
173. ng the mask type via the touch screen display See the 12 1 4 Setting Event Masks with the Terminal on page 83 for instructions on configura tion 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 10 nonvolatile memory The logs can be accessed from the touch screen menu or the RS 232 port See 13 6 2 Logs for more instructions on viewing the logs from the touch screen See Table 10 Terminal Commands on page 77 for the RS 232 interface commands 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 Over temp Source 1 F ail 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 w
174. nge and the sources are synchro nized 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 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 107 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 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 STS1 and STS2 are lit 4 Verify that the input breakers CB1 and CB2 are closed Verify that their respective LEDs are lit 5 Push the Preferred Source button for the desired source See Table 16 on page 104 The Preferred Source LED PREFx LED turns on for that source When con
175. ns turn on to prevent overheat ing inside of the unit Should the front panel interface fail either touch screen or LEDs the control logic continues to oper ate 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 avail able or the DB9 RS 232 connector located next to the LCD display behind the front door See Figure 29 on page 41 for details 57 Introduction to STS2 Operations 8 1 2 8 2 8 2 1 8 2 2 8 2 3 Reliability and Agency Requirements The STS2 is designed for high reliability and high availability with a critical bus Mean Time Between Failure MTBF exceeding 1 000 000 hours The STS2 Control Power Module and all its options are designed tested and certified where appli cable 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 computing devices The 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
176. nt 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 41 event 84 STS2 Touch Screen Display 13 0 STS2 ToucH SCREEN DisPLAY The STS2 can be configured with a Color Graphical LCD touch screen display 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 STS2 This screen provides a graphical Mimic display of the switch s operation plus system information including system parameters alarms and 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 STS2 includ ing the control of the preferred source auto manual retransfer selection alarm notification and other system setpoints The touch screen also provides buttons
177. o cere Odi 63 OPERATING INSTRUCTIONS FOR THE TOUCH SCREEN INTERFACE 64 Normal vc ePi Sete vie TS 65 Manual Transfer Preferred Source Selection 66 Enabling Remote Source Selection 67 u a u LOW VA OE Ss OAS bw AE S 67 10 4 1 Bypass Procedures for Source 1 69 10 4 2 Bypass Procedures for Source 2 70 Normal System Shutdown 70 10 5 1 Shutdown in Static Transfer Switch 70 10 5 2 Shutdown in Maintenance Bypass Mode 70 ALARM AND FAULTS ADR WR WEE Qa bas w E ae 71 Event peser u puquya lab apas aq te trate Led sed aden RI AS DCN PIU dad abies 71 11 2 11 3 11 4 12 0 12 1 13 0 13 1 13 2 13 3 13 4 13 5 13 6 13 7 14 0 14 1 14 2 Exvent and History Dogs bd eee nep equ EY qe eS 12 11 27 E o O 72 T1 2 2 History Dog ui uec dece tcv TEQUE a Ga ott d 72 Alarm NOLSS ecc ed ths eda bases barata bees eee ae hee pees shakes 73 ListotMessag s Boek seb
178. oard dialog 98 Syster options rutu ene ade 99 Event log Ra a e pa v 101 History ana sampe s sp tpn AE ae Na 101 LED displays BO Gears SA u ee SOLE os ES OS AS 103 Key locko t ecce ite os oe ied ueste uibs ie ue e e a ukasa 105 TABLES He atOut puts ers Net eet tab Ph occ sa ce er WE e e e irt 6 Altitude conversion feet to 7 Input output conduit plate specifications 10 Input junction box dimensions 10 Input junction box terminal wire size 10 Remote source selection terminal 12 Terminal block 1 and terminal block 2 wire 12 Programmable relay board pinout 13 Event Messages vb spe rr erret te Re NS RR te a Dare Freie ges 74 T rminal Commands con eere teme dert erue ace ee ad aon add 77 Value types 24 20 See Pe dede C e Uit eu de As ee dre EN De 79 Group settings and values
179. ol logic module has failed One of the control modules on the control board has failed Contact Liebert 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 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 117 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 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 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
180. ons 3 0 LOCATION CONSIDERATIONS 3 1 3 2 3 3 The STS2 should be placed in a clean cool and dry location The STS2 requires only front access 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 informa tion 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 17 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 150 volts to ground and 42 in 107 cm for units with voltages over 150 volts to ground Clear ance of at least 18 in 46 cm 18 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
181. ons See Figure 25 for wiring details Programmable Relay Board PRB optional up to two PRBs can be installed in the STS2 to route 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 SiteScan terminal via an RS 422 SiteLink 12 or SiteLink 4 18 required for SiteScan to communicate with the 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 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 Terminal Port Connec tions 1 8 Connect the terminal to the 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 in
182. or Graphical Display or LED Display The display is located in the front of the unit Front panel display is either an LCD touch screen dis play for monitoring and configuring the unit or an LED panel to monitor the unit s status See Figure 31 for a drawing of the touch screen display See Figure 63 for the layout of the LED dis play 113 Specifications 15 2 9 RS 232 Port The unit is equipped with an RS 232 port for connecting a terminal or PC See Figure 29 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 10Terminal Port Connections The system has an asynchronous 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 1000 Volt DC isolated non SELV and ESD protected to 15kV air discharge The connector is a 6 Pin MTA plug with connections shown below Table 22 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 he
183. or either auto or manual alarm reset In the auto reset mode the alarm 1s reset as soon as the load current and source voltage return to nor mal 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 over load should be investigated and resolved such as by reducing the overload condition or clearing the output fault before returning the switch to normal operation These events indicate a device failure The device must be replaced and the system must be restarted for the fault 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 73 Alarm and Faults 11 4 List of Messages Table 9 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 the optional modem A The indicated event activates the Audibl
184. our 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 129 Event Message Help Text CB2 S2 OPEN Circuit Breaker 2 for Source 2 Open Circuit Breaker 2 is not closed CB1 is only assigned to Source 2 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 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 CB4 S1 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written
185. oz vooc 002 A807 A802 A80Z vo 98 5 dIA3 LH3AO LN3ISIAV diN3 LH3AO LNAWdINOA diN3 LH3AO MNIS LV3H N3dO 495 S N3dO 5 IS 1 5 S LYOHS NOS IS 5 l13S3H 31VNH3ITV AV ldSIQ S IOHLNOO Wav TV 43 wings Installation Dra Figure 32 LED display 0 H 200 1254 esr 580 S Piast va mom wo vc wamo t rts 200 i am WAVY 13638 OL INIL IWYS 1 IHL 1v 1S0W W 31VOIONI OL TOSWAS Nolina 6 Wavy iN3s3Hd SI 1ndino Nass r 6 SY 6 193135 OL NOLLNAHSNd 3ounos SV 5 193135 OL 504 5 5 8 6 Joanos 6 5 a SONVYSIOL NIHLIA Nas a NIHLIM L dounos was LNAS3ud SI 2 5 g 1N3S3Hd SI 5 N3349 V om 108WA S QN3531AVIdSIG wings Installation Dra floor stand 100 250A Ing
186. pass on page 107 for instructions using the LED units 15 2 13Fuseless Design All STS2 units are fuseless and are UL rated for use with upstream circuit breakers only 15 2 140ptions The following options are available for the STS2 Optimized Transfer Redundant Output Breaker LED Display Network Interface Card NIC Distribution Cabinet With I Line Panelboard Seismic Floor Stand 18 24 30 and 36 Input Junction Boxes and Cable Export Crating Comms Board w SiteScan and Modem Interface Internal Modem Input Contact Isolator Board Programmable Relay Board Remote Source Selection Key Lockout Switch See 6 0 Options for more information 115 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 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system statu
187. ped 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 pro vided 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 STS2 should be from two independent sources to avoid a common source failure ensure proper operation of the 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 STS2 is designed for operation with 3 or 4 wire solidly grounded sources only For 4 wire operation the common source neutral must be connected to the STS2 See Figure 3 o
188. ptions dialog box where x is the corresponding board number The Prog Relay Board dialog box 1s displayed 97 STS2 Touch Screen Display Figure 59 Programmable relay board dialog box Prog Relay Board 1 USER DEFINED SET STANDARD SET Programming Relay M 2 j 7 ej Relay 1 CB1 SHUNT TRIP FAIL f CB2 SHUNT TRIP FAIL CB6 NEUT OPEN CONTACTOR NEUT FAIL CONTACTOR NEUTFAL 5 CONTROL MODULE FAIL Save Cancel 2 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 settings this information 18 not saved if control power is removed Record the settings in Programmable Relay Board Settings Record on page 139 3 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 gt 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 4 Select SAVE to keep the settings 5 Select OK for the applicable Programmable Options Board option in the Comm Options dialog box to activate the settings Configuring the Network Interface Card An optional Liebert OpenComms Network Interface Card
189. ributor 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 138 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 STS2 has the PRB option installed list the settings below for future reference If control power is lost in the STS2 the settings are not saved Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 139 Maintenance Channel 8 Channel 9 Channel 10 PRB Notes 140 Maintenance INPUT CONTACT ISOLATOR SETTINGS RECORD The Input Contact Isolator board ICI provides an STS2 module interface for up to eight external user alarm or message inputs to be routed through the static transfer switch s alarm network See 6 4 Input Contact Isolator Board for more inform
190. s breaker CB5 Verify the breaker status on the Mimic screen Open source input breaker CB2 Rotate the interlock key and remove it to lockout the breaker Secure the key per your site s lockout tagout procedure Open output breakers CB3 and if supplied to remove power from static switch eo oo To m m N 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 Close output breakers CB3 and CB3A if supplied Verify CB3 and CB3A breaker status and STS SOURCE 2 and OUTPUT boxes are highlighted on the Mimic screen 7 Open bypass breaker CB5 8 Rotate the keys in CB5 interlock to extend the interlock 9 Remove the proper key from CB5 interlock and insert it into CB1 breaker interlock 10 Rotate the key to retract the CB1 breaker interlock 11 Close source input breaker 12 Verify the STS SOURCE 1 box and CB1 breaker status on the Mimic screen f the Color Graphical Display is not available check the gate driver board LEDs through the slots in the control panel See Figure 48 moe Normal System Shutdown The STS2 can be shut down from either the static switch mode or the bypass mode Shutdown in Static Transfer Switch Mode When the STS2 is operating on static transfer switch mode not maintenance bypass mode
191. s 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 52 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 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 1 SCR OPEN Source 1 SCR Open One or more SCRs on Source 1 is open Transferring between sources has been inhibited Contact Liebert for technical support at 1 800 LIEBERT 800 543 2378 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 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
192. side of the PDU transformer is configured as a Wye or Delta changes the firing sequence of the SCRs If the 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 Liebert 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 Password See Using the Password on page 87 for more informa tion on configuring and using the password 100 STS2 Touch Screen Display 13 6 2 Logs Two types of logs are kept by the STS2 Event Log and History Log Event Log The Event Log tracks the alarms and faults of the 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 61 Event log
193. so configured The alarm has triggered a message to be sent to the modem if so configured 116 Event Message Help Text S2 SCR OPEN Source 2 SCR Open One or more SCRs on Source 2 is open Transferring between sources has been inhibited STS2 output has been transferred to Source 1 Contact Liebert 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 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 PRIMARY FAN FAIL Primary Fan Failure One of the primary cooling fans for the STS2 has failed The alternate fans are now running The alternate fans are not monitored Contact Liebert 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 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 Contr
194. splay 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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 119 Event Message Help Text 1 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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
195. ssing the STS2 system from a terminal type CA and press RETURN on your keyboard 120 Event Message Help Text S2 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 audible alarm if so configured If you are accessing the STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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 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 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 STS2 system from a termina
196. ssing 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 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 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 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 a
197. t allows the 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 Options 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 tele phone number and PIN for the pager that you want the system to call Configuring the Input Contact Isolator Settings The Input Contact Isolator ICI 18 an optional eight channel input board for up to eight external user alarm or message inputs to be routed to the static transfer switch s alarm network 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
198. t breaker CB2 The LED for CB2 is turned on 10 Verify that the output LED is lit 90 09 107 Operating the LED Display STS2 Bypass Procedures for Source 2 If transfer to Source 1 is not desired 1 2 8 10 Follow the instructions to transfer the load to Source 2 if it is not the currently used source Remove the interlock key from CB4 and place it in CB5 interlock Open the alternate source input breaker The LED for CB1 is turned off Rotate and remove the interlock key Insert the key into the CB5 bypass breaker interlock and rotate the interlock keys in CB5 bypass breaker interlock to retract the interlock Close bypass breaker 5 The LED for is turned on Open source input breaker CB2 The LED for CB2 is turned off Rotate the interlock key and remove it to lockout the breaker Open output breakers CB3 and CB3A if supplied to remove power from static switch The LEDs for CB3 and CB8A if supplied turn off Verify that the output LED is lit Power is now flowing directly from the source to the load without passing through the static transfer switch To return to normal mode 1 2 3 oon 11 Verify that the LEDs for Source 2 are on indicating that the source is supplying power and is operating within acceptable tolerances Insert key in the CB2 breaker interlock Rotate key to retract interlock Close source input breaker CB2 The LED for CB2 is turned
199. t 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 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 11 or as 15 typical with a double ended substation Figure4 Typical one line diagram of two PDUs and a static transfer switch SOURCE 1 SOURCE 2 MICB1 MICB2 7 AJ ISOLATION
200. t power sources to an output load The 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 com pleted The STS2 contains two static transfer switches in one enclosure to allow the unit to transfer its load between the two input sources without disruption to the output for longer than 1 4 cycle If a problem is detected with a primary Preferred input source and defined trigger points are reached the STS2 automatically switches the input to the other Alternate input source The 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 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 infor mation status information a one line diagram Mimic of the STS2 active alarms and alarm history information The menu selections provide control of the preferred source manual transfer initiation Buttons pro vide for audible alarm sil
201. terface 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 command or HELP command displays specific help for the command SVTP Control 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 1n Table 10 For additional help type command or HELP command Refer to the corresponding menu options in the 13 0 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 pass word to gain access Table 10 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 history 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
202. 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 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 STS2 Select a setting for the 1 RESET Select AUTO to configure the static transfer switch to automatically reset when a fault clears and the voltage and current are normal Select MAN to require a manual reset of the static transfer switch when fault clears and the voltage and current are normal 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 18 no chance of equipment or personnel harm by automatic re energizing of the system Consult with your Liebert site Engineer as to whether Auto restart should be enabled 92 STS2 Touch Screen Display System Settings The System Settings choice under the Config menu displays another pop up menu with three choices Comm Options System Options System ID To access the System Settings menu 1 Select CONFIG from the menu bar 2 Select SYSTEM SETTINGS from the Config menu Comm Options The Comm Options dialog box a
203. the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard S2 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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 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 STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm Contact Liebert 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 acce
204. 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 STS2 Touch Screen Display If the front panel of your STS2 is comprised of LEDs and push buttons instead of the touch screen interface refer to 14 0 Operating the LED Display STS2 for operating instructions See Figures 14 19 for circuit breaker locations 64 Operating Instructions for the Touch Screen Interface 10 1 Normal System Turn On NOTE If your 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 STS2 breakers CB1 CB2 CB3A if supplied CB4 and CB5 are in the OFF position a Ensure that the key interlocks for CB1 and CB2 have their bolts retracted b Ensure that the key interlocks for CB4 and CB5 have their bolts extended thus preventing CB4 or CB5 from being turned ON 2 Source input power should be applied to both STS2 inputs The touch screen control panel should become active and operate properly when at least one of the inputs 1s energized is closed 3 Verify that nominal input voltages are applied to both inputs Source 1 and Source 2 The input voltages sele
205. 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 success ful connection is 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 1s displayed Figure 57 Modem dialog box Modem Modem Type ri EXT Bm Primary Line Secondary Line 3 Init String Baud Rate 0 E Modem Health Check YES 9 Auto Dial in YES 2 Auto Dial out YES Save Cancel 2 Select the type of modem that the STS2 will be using Select INT if the STS2 will be communicating via an internal modem Select EXT if the 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 is 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 1s 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 a
206. 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 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 1s supplied by multiple ac power sources disconnect and lock out all power sources before working inside unit Minimal periodic maintenance of the STS2 is required As with all electrical distribution components the system should be regularly inspected for electrical connection integrity signs of excessive temper atures 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 Table25 Torque tightening Grade 5 Imperial Electrical Connections with Grade 8 8 metric Belleville Washers in Ib N m in Ib N m Bolt Shaft Size pound inch Newton meter pound inch Newton meter 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 STS2 The STS2 includes comprehensive system alarms
207. trol wiring for the 5 282 41 Outline drawing for input junction 42 Color LCD touch screen display y y u yaya ce eee hh 43 LED display k cc deett ie DRA 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 400 600 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 ST92 touch sereen display eeu erbe Foe eas
208. tten 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 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 alatching 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 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
209. uch 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 STS2 Touch Screen Display for more information on the touch screen If you are monitoring the system through the RS 232 port see Table 10 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 STS2 has failed or has been damaged In the Event Display faults are indicated in red Alarms An alarm is an event caused by a significant abnormal system condition In the Event Dis play 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 1s 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 optional internal or 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 c
210. udible alarm if so configured If you are accessing the 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 135 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 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 future events Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event was
211. uence of the events is identified by date time and frame number The History Log frames are stored in a nonvolatile memory buffer that is continu ously 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 18 reviewed and investigated by a qualified service technician After the alarm condition has been cor rected the History Log can be cleared 72 Alarm and Faults 11 3 The History 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 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 18 indicated in red on the bar graph Frame Number the current frame in the replay 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 f
212. ut of less 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 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 after the current and voltage return to within normal parameters This reset provides continued protection against a source fail ure 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 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 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 STS2 automatically triggers an alarm and trips open the other source isolation breaker 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 lat
213. wing 800 1000 amp 5 52 25 Electrical field connections drawing 100 250 amp STS2 with single output breaker 26 Electrical field connections drawing 100 250 amp STS2 with dual output breakers 27 Electrical field connections drawing 400 600 amp STS2 with single output breaker 28 Electrical field connections drawing 400 600 amp STS2 with dual output breakers 29 Electrical field connections drawing 800 1000 amp STS2 with single output breaker 30 Electrical field connections 800 1000 amp STS2 with dual output breakers 31 Circuit breaker 32 Control connection location diagram 100 600 amp 5 52 33 Control connection location diagram 800 1000 amp 5 52 34 Control wiring for remote source selection 85 Control wiring for the programmable relay boardoption 36 Control wiring for the input contact isolator boardoption 87 Control wiring for comms board see Figure 27 on page 39 for internal modem wiring 38 Control wiring for the internal modem option 39 Control wiring for the network interface card NIC 40 Con

Liebert POWER PROTECTION STATIC TRANSFER SWITCH User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents