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1. e CD e Figure 2 5 Typical 5 rectifier modular power supply 2000 Series 4x 6U 5 3U Figure 2 6 Typical 3 rectifier modular power system Allis Electric Co Ltd page 5 of total 82 2002 02 User Manual R2485 amp System 3 System Installation The installation of an uninterruptible DC power system incorporating rectifiers batteries and control hardware requires compliance to National Wiring Standards and appropriate sections of standard IEC950 to ensure safety of operators and supplementary equipment Wiring should always be done by qualified personnel 3 1 Racks The structure and continuity of the rack provide both system safety compliance and additional shielding for electromagnetic compatibility EMC of the DC power system The rack enclosure needs to have the following features to provide safe and efficient system operation e The rack must form a basic fire enclosure To do this a
2. Figure 3 1 3 Way amp 5 Way Magazines Allis Electric Co Ltd page 6 of total 82 2002 02 User Manual R2485 amp System Considerations for the location of the user interface card MUIB which connects to the MCSU by a ribbon cable should be based on the type of access rear top front and will similarly impact on the general location of control and system wiring If rear access is available the MUIB can be mounted on the rear of the 3 rectifier magazine The larger systems usually have the MUIB mounted on the side panel of the rack near the top to allow access through the top once the cooling grill is removed The end result must be that the user terminals of the MUIB are readily accessible 3 3 Lightning and Transient Suppression The rectifiers and magazine contain basic transient suppression in the form of Metal Oxide Varistors MOVs across line to neutral line to earth and neutral to earth These MOVs are sized to provide protection from typical line transients in an industrial environment according to ANSI C62 41 1991 6kV 3kA and IEC 61000 4 5 Level X Under these conditions the MOVs are expected to provide transient protection for the life of the rectifiers If the transient environment is more severe with a high incidence of lightning strikes either indirect or direct and or severe switching tr
3. Monoblock 1 C7 8 Monoblock 2 C8 9 Monoblock 3 C9 10 gt Monoblock 4 C10 11 AS 11 12 C12 BATTERY 57 4 REMOVE LINK MONITOR N x Connects X9 C12 to X43 C1 54 499 48V BATTERY 3 TM 4x12V M blocks X onoblocks C134 n reb Monoblock 1 13 C144 Monoblock 2 C14 15 Monoblock 3 C15 16 Monoblock 4 C16 17 26 zs 5 T Me 48V BATTERY 4 4x12V Monoblocks 18 19 Monoblock 1 C19 C20 Monoblock 2 C20 C214 Monoblock 3 C21 C22 Monoblock 4 C22 C23 Of Ke 25 C24 m C24 y X43 Figures 9 9 BCM connections to up to four 48V 4 x 12V monoblock battery banks Allis Electric Co Ltd page 65 of total 82 2002 02 User Manual R2485 amp System 24V BATTERY 1 12x2V Cells gt gt L Cell 1 C1 C2 gt Cell 2 C2 C3 gt Cel 3 C5 4 gt gt ES Cell 4 C4 5 5 T Cell 5 C5 C6 gt Cell 6 C6 C7 gt E Cel 7 C7 C8 gt Cell 8 C8 C9 gt 2 Cell 9 C9 C10 gt Ed Cell 10 C10 11 gt Cell 11 C11 C12 gt ES Cell 12 C12 gt x9 CEI IN FOR REMOVE LIN
4. E42 24044 85 15 3 BCM CONNECTOR DIAGRAM 12 134 87 Allis Electric Co Ltd iii 2002 02 User Manual R2485 amp System 1 General Warnings This equipment has been designed to be used only in restricted access areas This equipment must only be serviced by authorized and qualified service personnel Operators should not attempt to repair faulty units There are no operator serviceable parts inside All fuses are only replaced as part of a repair procedure in a repair facility by authorized personnel and not as a maintenance procedure on site The rectifier must be mounted in an 19 inch rack which satisfies requirements for electrical enclosures and fire enclosures according to IEC 950 or equivalent standard The top and bottom of the rectifier must not be accessible during operation The front of the rack must be closed off to prevent operator access to the top and bottom of the rectifier Any openings in the front of the rack above or below the rectifiers must be closed off by equipment blanking panels or ventilation panels The rectifiers must be used with sufficient ventilation After mounting the air flow paths into and out of the rectifier must be unrestricted Allow adequate flow for hot exit air at the top Prevent small items from falling into the top of the rectifier See the section on Rack Installation for suggestions of a
5. 1 PDU1 10 TBI HEM HC REE S Hee 404241 71 S BS1 2 CBle5 SIS B 1 11 o fe 41414141 A o FBS I 3 1 h d E or o DCCT2 3 1 e M M e 25 25 9 9 wl 9 Headed ade 3 8 3 oo 2 2 2 P mum OUO 600mm e SS SS 1 FRONT VIEW Allis Electric Co Ltd page 80 of total 82 2002 02 User Manual R2485 amp System 14 3 Side View
6. 5 o 5 o o ote o 14 o 4 21 5 o 2 o o o 2 o o o 9 o g ro L e o le o o 1 o o E o o o o o o o 560mm SIDE VIEW Allis Electric Co Ltd page 81 of total 82 2002 02 User Manual R2485 amp System 14 4 Rear View Allis Electric Co Ltd 1800mm 82 of total 82 2002 02 User Manual R2485 amp System 14 5 Top View S e ME TOP VIEW i 3 560mm 460mm 014 4 540mm 590mm 1 BASE STRUCTURE VIEW Allis Electric Co Ltd page 83 of total 82 2002 02 User Manual R2485 amp
7. Figure 3 8 MUIB2 Outline Allis Electric Co Ltd page 16 of total 82 2002 02 User Manual R2485 amp System 34 way ribbon cable to MiniCSU Ld X180 X179 16 way ribbon cable to MiniCSU Figure 3 9 MUIB2 Connection Diagram Figure 3 10 MUIB2 Connectors Function mag analog Allis Electric Co Ltd page 17 of total 82 2002 02 User Manual R2485 amp System 3 9 2 System setup requirement The original MUIB board is replaced by MUIB2 The chassis has been designed so that it can take either an MUIB or MUIB2 board Due to the increased size of the MUIB2 board the maximum width of the modem is reduced from 170mm to 160mm The MCSU software needs to be a version with MUIB2 option This board needs to be enabled by the appropriate version of MCSU software from the front panel of the MCSU or WinCSU The load transducer also needs to be enabled or disabled as necessary The full scale value of battery and load transducers then needs to be entered 3 9 3 Main features of MUIB2 The principal features of the MUIB2 are as follows e Each battery current input accepts input range of 4V to 4V full scale The maximum allowed input is 5V The load current input range is from OV to 4V The maximum allowed input is 0 to 5V e The battery and load full scale currents are separated so different transducers for battery and load currents can be
8. Cancel Figure 11 2 Battery amp SMR Parameters Window SMR Parameters x Figari EquatiseT High Alarm Low Alarm HVSD Trip V 56 6 75 eo Read 15 11 1939 14 46 37 Current Lim 4 25 Adjust Level Save to Disk write to SMA Print Read from Eg Battery Cell Monitor fms Battery 28 I tM 4 Cell Voltage v N 5 e Cell Numb Cell 10 2 155V 0A Cell 1 Volts 2 110 1 Cell 2 Volts 2 120 1 Cell 3 Volts 2 125 0 Cell 4 Volts 2 145 1 Cell 5 Volts 2 130 4076 Cell 6 Volts 2 145 1 Cell 7 Volts 2 120 1 Cell 8 Volts 2 105 1 Cell 9 Volts 2 075 3 Cell 10 Volts 2 155 1 Cell 11 Volts 2 155 1 Cell 12 Volts 2 135 0 Cell 13 Volts 2 135 0 Figure 11 3 Two alternate views of the Battery Cell Monitor window data Allis Electric Co Ltd page 73 of total 82 2002 02 User Manual R2485 amp System o Battery Cell Log X Battery Cell Log OL x Imt 1 173 10 15 18 Zoom Logging Time Mins Traces m Logging Time Mins RITU CSU Log Start Time 3 10 2000 15 512 Mouse Left Zoom 4 CSU Log Start Time 3 10 2000 15 5 12 Mouse Left Zoom 7 Figure 11 5 Cel
9. rs Lt 0 18 c IIO 0 qai m TES za UE ALLEE s cp 208 YE Sas amp gmb 5544 z xc Es aw we ed ur minicsu 9 3 1 Electrical Specification Analog Signal Input Range OV to 5V Analog Signal Protection Over voltage and reverse polarity protected Note each analogue input must be floating Analog Signal Scaling and Alarm Levels Scaling factor Low and High alarm levels are user programmable from WinCSU only 9 3 2 Physical Specification SMM MCSU Connection 16 Way Ribbon Cable Signal Input Connectors 2 pin male header 5 0mm pitch Mfr Weco P N 120 M 221 02 Allis Electric Co Ltd page 57 of total 82 2002 02 User Manual R2485 amp System Matching female plug P N 120 A 111 02 provides screwed connection for wire up to 1 5 mm Output Connectors 3 pin male header 5 0mm pitch Mfr Weco P N 120 M 221 03 Matching female plug P N 120 A 111 03 provides screwed connection for wire up to 1 5 mm 9 3 3 Installation Wiring of the site monitor is entirely dependent on the signals to be monitored Figure 9 3 show the basic wiring diagram of a system using a site monitor and a Battery Cell Monitor Signals such as site security windows and doors being opened are usually connected as digital inputs while fuel levels inverter voltage current freque
10. Expan2 Enter 10 2 SMR Menu m INC DEG SMR1 0A SMR1 R2485 40C Display Ver amp Temp SMR Float 54 0V SMR Equal 54 0V SMR V Hi 57 0V SMR V Low 48 0V SMR HVSD 58 0V SMR I Limit 52 SMR Fault Reset Allis Electric Co Ltd page 70 of total 82 2002 02 User Manual R2485 amp System 10 3 Batt Menu Batti 0A Bat Temp 29DegC Batt Talarm 40C QEst 90Ah Bat Rated 90Ah Off 0 mV C C 0 1 Number Cells 24 Vb lt Vdd 9 Vdd Level 45 0V Vb Vfl 9 Sys Float 54 0V Bllim Vb gt Vfl 9 INC DEC Sys Equal 54 0V Sys Drop 0 0V B Dis Al 48 0V Stat Eq Off V Eq 49 0V Q Stat Eq Off Qdis Trig 15Ah EQ End Equal Dur 24Hr Equal Per 12Wk Manual Start EQ LVDS 44 0V LVDS Auto Sensor Alarm Off BDT Per 30Days Time 01 12 BDT Dur 00 BDT Curr 50A End V 44 0V End Q 3004h LAST BDT N A Allis Electric Co Ltd page 71 of total 82 2002 02 User Manual R2485 amp System 11 APPENDIX D Remote Monitoring Software WinCSU2000 WinCSU is a monitori
11. BRS Rem Fes 0 0 EI 8 ws TA E xi H 83 1n gt 3 1 1 esc P us ggg RZA Ma D 5 RET u 4 5 5 5 ome 28858 cu BS rm g ug TE E SERIE Bi IE I gne 92 2 ena zer E B Ce aE EIS PS jas Hea PLAN M 39377112 xof 2 2 ath Tine ens LC C ks zo 4 T JBUF B t SC a c gt E Ja Ja Ja Ja h Les 24 PA 7 O EAS J RE 2 99 2200 am IQS racc 447 Past E 2 TO ncs 123 ela ues Jd ur Cc AX P216 m E 8 8 NICE EEFT de use ri amp 2076a LL c B 7 E 212 4 B222 E224 I jl acl rate um ACI 1 s 2 from AC Dist Module 16 way ribbon cable to MiniCSU AC3 AC2 1 Note In 220V ph ph systems if Neutral not supplied connect AC1 AC2 to X2 input AC2 AC3 to X120 input and 1 to X217 input BEEN To SMR Inputs Figure 9 2 Three Phase AC monitoring unit MMIB2 block diagram Commissioning Allis Electric Co Ltd page 56 of total 82 2002 02 User M
12. lt mz TEMP 1 PHASE AC BAT 1 Curren E 3 V 2 147 5 w u IE x Bi 1 p 2 2 5 a E e E 20 4 3 kd n 14 E TEU 180 FUSE 26 FUSE 2A FUSE 28 FUSE 28 amp k KL 41 4 F Bus Bat Bus Bat j d i VL me 042 lt gt Fos RA ILLE res _ ass FPS 2067 p w amp z TRIP gt g LUDS m E n m gt ZA UA UA AAAA AAAA A A KAY KAA ANA gi KAA LAA ies NC C C MC C Wo wc c 2 3 Eus 3Eus 7 gt fy l eta 5 Maclay S SW USER 1 USER 2 USER 3 USER 4 INPUT 087 1005 Aux 1406 Coil 34 way ribbon cable to MiniCSU X22 bes bas bas as Figure 3 4 MUIB Outline and Connection Diagram Allis Electric Co Ltd page 13 of total 82 2002 02 User Manual R2485 amp System Figure 3 5 MUIB Connectors Function MCSU Anal Dig 34 way ribbon cable to MCSU USER Relay Contacts N O N C Common User defined i p isolated aux Contact or similar System voltage sensing and DC power input for MCSU 3 8 2 Relay Contact Outputs There are 5 relays with normally open N O and normally closed N C contacts available on the MUIB Three of the relay
13. 24V BATTERY 2 2x12V Monoblocks Monoblock 1 Monoblock 2 5 2 C22 C3 C3 C4 4 5 5 lt C6 C6 7 7 C8 C8 9 C9 C10 C10 C114 12 X9 BATTERY CE C12 MONITOR REMOVE LINK Connects X9 C12 to X43 C13 24V BATTERY 3 2x12V Monoblocks Monoblock 1 Monoblock 2 2 24V 4 2x12V Monoblocks Monoblock 1 Monoblock 2 56 C13 C15 14 14 C15 C15 C164 C16 C17 m C17 C184 18 19 19 C20 20 21 QG2Te C22 25 25 24 m C24 X43 e Figures 9 13 BCM connections to four 24V 2 monoblock battery banks Allis Electric Co Ltd page 69 of total 82 2002 02 User Manual R2485 amp System 10 APPENDIX C Flow of MCSU Menu Screen 10 1 Home Menu INC DEG 0A 54 0V FL Amb Temp 29DegC Amb Tmp Alrm 50C Volts Hi 56 0V Volts Low 48 0V Security Off Test Off NO of SMRs 2 Interface MUIB Num Batteries 2 FS Batt I 200A CSU 0000000 01 12 2001 01 21 Modem Off Audio Off 1 None
14. Amb Tmp Alm Volts Hi Volts Low No of SMRs Num Batteries FS Batt I CSU Date Expan 1 Submenu AC 1 ph Menu 1ph ACV Hi 1ph ACV Lo 1ph ACF Hi 1ph ACF Lo 1ph ACI FS Expan 2 Submenu AC 3 ph Menu 3ph ACV Hi 3ph ACV Lo 3ph ACF Hi 3ph ACF Lo 3ph ACI FS Batt Monitor Menu Batt Mon Bat Conf BCM Batteries Vhi Cell Vlow Cell dVc Cell dVc Cell SMR V High Allis Electric Co Ltd Set number of SMRS inthe system 060 Current systemdate cro OO After enabling ee eee see BCM section of manual for more detail configurations pe page 52 of total 82 55 C 57 0V 49 0V 100A 0000000 260V 200V 55Hz 45Hz 100 260V 200V 55Hz 45Hz 100A 2 5V 1 8V 2096 2096 56 0V 2002 02 User Manual R2485 amp System 52 Disch I Diff Battery string discharge current difference 5 99A 20 alarm Batt T Alrm Battery Temperature alarm threshold 30 to 90 C 40 C Bat Rated Ampere hour rating of batteries 20 to 9999AH 500AH E Leak Alm Earth leakage current alarm threshold 1 0 9 5 5 mA Battery Temperature Coefficient 0 6mV C cell 0 mV Number Cells Number of chemical cells in battery string 22 42 2 BILim Vb lt Vdd Battery charging current limit for Vb lt Vdd 5 999A 5 A A 4 0A BILim Vb Vf1 Battery charging current limit between Vdd amp 5 999A 50A Vfl 0A Sys Equal System equalize voltage Veq 50 61V 55 0V
15. User Manual R2485 Rectifier and DC Rack Power System Document MO3001Eb Date February 2002 Allis Electric Co Ltd User Manual R2485 amp System 1 GENERAL au Enn 1 2 CONFIGURATION 2 2 1 SYSTEM DESCRIPTION EET 2 2 2 GENERAL DESCRIPTION tana baa 2 2 3 RECTIFIER SPECIFIC CONFIGURATIONS ss e ne ena rana rana EE E ERN ERR NE RR HERE 5 3 SYSTEM INSTALLATION sis cuidate die ides 6 3 1 P MR 6 3 2 AAS 6 3 3 LIGHTNING AND TRANSIENT SUPPRESSION sees een nena nnn hann hahahaha 7 3 4 CABLING AUXILIARY EQUIPMENT AND CIRCUIT 5 7 3 5 RECTIFIER INSTALLATION AND 0 8 3 6 REMOVING RECTIFIER FROM THE ER REN RAE EE ERE 9 3 7 INSERTING A RECTIFIER INTO THE 6 6066 00000166906 10 3 8 MINIUSER INTERFACE BOARD 12 3 8 1 MUTB CONNOGCTIONS E 12 3 8 2 Relay Co ta t QUEDUUS EE 14 3 8 3 Spare Digital and Analog ea ad ha qiia
16. cece 33 5 7 BATTERY PARAMETER MENU SCREENS LEE NAE REESE 34 5 8 ALARMS LOG SCREENS Ea ANEETA EPEE EEE eaa TAE riai aR E 38 5 9 EARTHLEAKAGE DETECTOR 38 Allis Electric Co Ltd i 2002 02 User Manual R2485 amp System 5 10 BATTERY CELL MONITOR DER 38 5 10 1 Relationship between BCM Batteries and Num aaa nnn nana aan 38 5 10 2 Frequency of n naa ha aa ah nana au aa aa 39 5 10 3 Battery Cell Measurements ee E E HERR 1420224 39 5 11 BATTERY DISCHARGE TEST 39 5 11 1 Results of last Battery Discharge 5 sess esee 40 6 MAINTENANGE 4 eit eo rota aste eee Moe e XR XE dee NR ani dedi FERREA P FEE FR ET oe Yan 42 6 1 WARNINGS AND PRECAUTIONS pnis eb a kan rne rada ua ape bera aid 42 6 2 SMR NAN 42 6 2 1 42 6 2 2 Integrity of Electrical Connections oo 42 6 2 3 Hilter Clear ARE 42 7 FAULT FINDING AND REPLACEMENT PROCEDURES Nt 43 7 1 SYSTEM FAULT FINDING PROCEDURES 43 7 2 MCSU
17. Sys Drop System voltage drop 0 0 1 0V B Dis Al Battery discharge alarm threshold 44 52V Manual Start Stop Force start stop of Equalization charging Toggle state Sys Float System float voltage Vfl 48 58V 54 0V LVDS Trip Battery voltage below which will open LVDS 40 48V 44 0V BILim Vb Vf1 Battery charging current limit in equalize Vb gt 5 999A 5 Vfl BDT Per Period between consecutive discharge tests 0 365days 30 days BDT Time Time of day to begin BDT hr min 00 00 23 59 02 00 Vdd Level Battery deep discharge voltage threshold 40 47V 45 0V End 25 9995AH 300AH Ver MCSU2048 01 S S a Allis Electric Co Ltd page 53 of total 82 2002 02 User Manual R2485 amp System 9 APPENDIX B Optional Interface Board 9 1 MMIB1 Single Phase AC Monitoring Module In low power systems where single phase power only is supplied an optional single phase monitoring module MMIB1 can be used to monitor the incoming AC voltage current and frequency The module is connected between the incoming supply and the AC Distribution module and connects to the MUIB and derivatives via a 10 way ribbon cable The block diagram of the MMIB1 module is shown below in Figure 9 1 Note MMIB1 cannot be used with MUIB3 X20 ACF 0 aaa N Voltage and Frequency Sensing AC Active To SMR AC Distribution 1
18. technical manual for more information about MMIB1 Allis Electric Co Ltd page 19 of total 82 2002 02 User Manual R2485 amp System 4 Commissioning Commissioning primarily requires an understanding of the rectifier visual signals and operator adjustable parameters on the system controller MCSU Before a system is first energized it is advisable to read this section thoroughly 4 1 Indicators on the Rectifier Front Panel There are three LEDs on the front panel to indicate the operating status of the rectifier modules They are as follows LED Colour What it indicates Rectifier functioning normally SHUTDOWN es Yellow flashing Alarm condition mo Yellow not flashing Unit is in Equalization mode 3 Shutdown Red with yellow LED flashing Unit is switched off or failed Shutdown Red yellow LED not on or flashing Micro in SMR has failed If necessary further information about the particular rectifier alarm condition if one exists can be found by referring to the MCSU or the PC connected to the MCSU 4 2 Output Current Bar graph 10 segment LED bar graph display can be included in the front panel of the unit as an option to indicate the output DC current Each element of the bar graph represents one tenth of the rated current of the rectifier 50 4 3 Fan DC power The nominal 12VDC required to operate the fan at the bottom of the magazine associated with each rectifier is derived fr
19. 1 operating range 10 35 LVDS Parameters Parameter Range Steps Trip level range 40 0 47 0V 0 1V Reconnect level Vfloat 1V Allis Electric Co Ltd page 22 of total 82 2002 02 User Manual R2485 amp System Other System Parameters Parameter Range Steps Batt current transducer full scale current 10 9990A 10A Load current transducer full scale current 50 9990A 10A Batt current transducer full scale voltage 4V Load current transducer full scale voltage 4V Number of Batteries using MUIB2 1 2 4 1 Load current transducer activation ON OFF Battery capacity 20 9999AH 1AH Battery Discharge Test Parameter Range Steps BDT Period Days Off 1 365 1 day BDT Time 24 Hour Format 00 00 23 59 1 min BDT Duration Hours Minutes 0 05 24 00 1 min BDT Current 0 5000A 1A BDT End Capacity Q 25 9995 1AH BDT End Voltage 36 48V 1V R2485 48V 50A SMR Parameters Parameter Range Nominal SMR Float Voltage 48 to 59V 54 0V SMR Equalize Voltage 50 to 61V 55 0V High Voltage alarm Threshold 52 to 65V 56 0V Low Voltage alarm Threshold 44 to 54V 48 0V HVSD Voltage alarm Threshold 54 to 66V 57 5V Current Limit for SMR 5 to 52A 52A Allis Electric Co Ltd page 23 of total 82 2002 02 User Manual R2485 amp System 5 Operation System operation is generally controlled by the MC
20. 4 uas 192 79 1 4 J 1 Piss 4 4 J 1 J L J 4 J 1 a ls pe d Me d a e uda 84 175 177 174 N171 8 163 155 154 5 45 N144 NI38 35 134 28 124 22 R I5 g B 8 E EY si 3 3 t 0165 0172 pes Met 0152 02 0129 027 z E NE 2z8 m um LJ m IL 588 8 d c5 co Jt I ss Bal nes amp 0 DT C3 me uc Em e FP 88 T T t e g 154 GND LL n im gs x 29 E t 5 f Paii Cm o co 162 L amp L 1 J B114 2 o s 82 amp 961 LL 2 g R4 5 2 4 833 CA L reo 9 ar C 5i n irs uz e REG CL m 4 1 ls n2 e 8 C O tog EE e C AT Us E Lu MS UO R37 d s 8 Rios 180081262 A2077a Tse ESAE 255 qs gt 5 zz E zg 1000 25 3 5 BCM e sew ve 25 s x 9 4 1 Main Features of the BCM The principle features of the BCM are as follows e Up to 24 cells can be monitored by a single BCM module Cell voltage setting can be 2
21. AC Monitoring Selection of expansion function 1 when selected this enables the single phase monitoring screens as well as the Expan 1 none screens below Note that Expansion 1 is not available in 110VDC and 220VDC systems Ex 1 1 0 h High AC voltage threshold ACV Hi alarm will appear when the AC input voltage is higher than this level the rectifier AC V Hi 2 53V will switch off independently at some level It will turn on again when the AC level falls to an appropriate value Low AC voltage threshold ACV Lo alarm will appear when the AC input voltage is lower than this level the rectifier AC Lo 187V will switch off independently at some It will turn on again when the AC level rises to an appropriate level AC frequency high level this alarm is generated when the AC source frequency is higher than this value the rectifier AC Frq Hi 63 does not switch off AC frequency low level this alarm is generated when the AC source frequency is lower than this value the rectifier AC Frq Lo 58 0Hz does not switch off AC current sensor rating for single phase the full scale rating of the AC sensor must be entered in this screen FS AC I 1 00 3 Phase AC Monitoring When the three phase monitoring module is used in the system the relevant screens are activated by programming to On the 3 Phase AC in Expan 2 section If programmed to none neither the monitoring nor the prog
22. Discharge Voltage Low SMR Voltage Low and Low Load will be suppressed however SMR alarms will be shown in the SMR status To access the Battery Discharge Test parameters enter the Batt menu and press DEC to get to the following screens Time interval in days between consecutive tests Setting range 0 365 When set to zero the automatic execution of BDT Per 14Days the test is disabled the display shows Off The test can be activated manually from a PC running WinCSU from CSU menu Display messages from 2 to 6 will be shown only if the test is enabled Time of the day at which the test should start Programmed in hours and minutes 24 hours format BDT Time 17 35 Time span during which the battery will be discharged Programmed in hours and minutes between 5 minutes and BDT Dur 3hO00min 24 hours step of adjustment 5 minutes Current of battery discharge controlled by MCSU Programmable range OA 5000A To ensure proper BDT Cu rr 50A operation of this function the load supplied by the system during the test must be greater by at least 10 than desired battery discharge current MCSU will use the rectifiers to support surplus load leaving the battery to supply a user defined amount of current to the load If this parameter is set to zero the control function is disabled and the battery will discharge under full load current End voltage of the test Battery voltage below which the test will terminate if reach
23. FAULT FINDING AND REPAIR nnn nhanh haha AERE RR 47 7 2 1 Replacing MCSU censa iot eh eek enda sk las daa cn eee 47 7 2 2 Removing the MCSU from the 48 7 2 3 Inserting the MCSU into the iiie enini nihii initi enini inen enean enean 49 8 APPENDIX A SUMMARY OF PROGRAMMED SYSTEM PARAMETER isis esee hh nn haha nhau ana aan 52 9 APPENDIX B OPTIONAL INTERFACE enhn nnn uaa haha ha ha 54 9 1 SINGLE PHASE AC MONITORING MODULE 54 9 2 MMIB2 THREE PHASE AC MONITORING ee eani hn nnn nnn nuin hahahaha 56 9 3 SMM SITE MONITOR MODULE 5 cic 11 255 NEN LR 57 9 3 1 SERRE 57 9 3 2 Physical SDOCHICAUUON m 57 9 3 3 1121218 1 58 9 3 4 1 58 9 4 BCM BATTERY EN 59 9 4 1 Main Features of the BOM e 59 9 4 2 BEM SDOGCHICAUONS 60 9 4 3 Preparing the battery for connection to the BC 60 9 4 4 INStAMING ANC boaii 60 9 4 5 Dip Switch Selection
24. MCSU performs a passive current sharing adjustment by noting the appearance of an X at the end of the LCD display Increase the load to 100 and check that the rectifiers all share load current Reduce the load to 75 and burn in for 24 hours Remove the load Connect the batteries on line and allow to charge before bringing final system on line For further information on any subject relating to MCSU operation or alarms see the detailed section on MCSU Below is a listing of the range of the system parameters that are accessible when commissioning a system 4 4 2 System Parameter Ranges Adjustable System Alarms Alarm Range Steps Voltage high alarm 52 0 66 0V 0 1V Voltage low alarm 40 0 54 0V 0 1V Battery discharge alarm 44 0 52 0V 0 1V Ambient temperature high alarm 30 90 C 1 C Battery temperature high alarm 30 90 C 1 C Differential battery discharge current 5 99A 1A AC Supply Monitoring Alarms Available when optional module is used Alarm Range Steps AC supply high voltage alarm 220 315V 1V AC supply low voltage alarm 140 270V 1V Frequency high alarm 50 65Hz 0 1Hz Frequency low alarm 40 60Hz 0 1Hz Adjustable SMR Alarms Alarm Range Steps SMR voltage high alarm 52 0 65 0V 0 1V SMR voltage low alarm 44 0 54 0V 0 1V SMR HVSD 54 0 66 0V 0 1V Allis Electric Co Ltd page 21 of total 82 2002 02 User Manual R2485 amp System Ba
25. SMR is not connected or not switched on or is faulty the screen indicates that the rectifier is not SMR1 No Response responding Warning It is important to declare the correct number of rectifiers in the rack using the MCSU home menu Allis Electric Co Ltd page 32 of total 82 2002 02 User Manual R2485 amp System NOTE Output current and limit values shown below are typical for a 25A unit SMR1 Current When a rectifier is on line and operating normally its output current is displayed SM R1 22 Pressing ENTER once displays the version number of the SMR and heatsink temperature Press ENTER again to SM R1 R2485a 32C revert to first screen Use INC button to display the output current from the other rectifiers SM R2 2 1A The rest of the SMR menu consists of screens detailing the SMR operating parameters Float Voltage value This parameter is globally and indirectly set in the BATT menu so cannot be changed in SMR Float 52 3V this screen It is set automatically to a value equal to the sum of the Sys Float and Sys Drop values set in the BATT menu As with the Float Voltage value the Equalization Voltage parameter is globally and indirectly set in the BATT menu so cannot be changed in this screen It is set automatically to a value equal to the sum of the Sys Equal and Sys Drop values set in the BATT menu SMR Equal 59 3V If ENTER is pressed while viewing above 2 screens the following message
26. System 15 APPENDIX H Diagram 15 1 Typical Rack Wiring Diagram Phone Ihe PDU Output Circuit Breakers i e Bor TZ DOE AC Cable cable 614625 lt mE 3 Core Neutral Earth 380V AC Source 5 To 22 MUIB TRIP L To 465 MUIB LVDS Coil Cubicle Earth Manual LVDS 7 Connection MOS Contacto Bypass Switch To X64 js Ambient Temp Sensor LVDS Aux AMB 2 Rack Cabinet To 39 MUIB Dotted line BAT 1 Current Bat 1 Switch i Bat 1 Current 317 MUIB Transducer D BAT TEMP Battery Temp Sensor To 40 MUIB BAT 2 Current A Bat 2 Switch ai T L Bat 2 Current Transducer To 323 MUIB BAT SW C 1427 Allis Electric Co Ltd page 84 of total 82 2002 02 User Manual R2485 amp System 15 2 System Interface Board Diagram AMB TEMP 1 PHASE 4 USER DEFINED 1 DIGITAL INPUTS 4 BATTERY 5 C O RELAY CURRENT CONTACT SENSORS OUTPUTS LOAD CURRENT 3 PHASE XC NEUE SENSOR LVDS STATUS POWER amp SYSTEM VO
27. ai in place C144 V C154 C164 C174 C184 C194 C204 C214 C224 C234 C244 C24 VVVVVVVVVVV YV X43 48V BATTERY 24x2V Cells Cell 1 Cell 2 Cell 3 Cell 4 Cell 5 Cell 6 Cell 7 Cell 8 Cell 9 Cell 10 Cell 11 Cell 12 INSERT LINK Connects X9 C12 to X43 C13 removing need to have a separate lead for C13 Cell 13 Cell 14 Cell 15 Cell 16 Cell 17 Cell 18 Cell 19 Cell 20 Cell 21 Cell 22 Cell 23 Cell 24 Figures 9 6 BCM connections to a 48V 24 cell battery bank Allis Electric Co Ltd page 62 of total 82 2002 02 User Manual R2485 amp System 48V 12x4 Ce BATTERY 1 LV Cells Connects 9 12 to X43 C13 Ch 9 C1 C2 C224 034 E 632 643 C4 65 gt o C55 C6 c y NE o C7 C8 o C8 C9 gt C9 C10 gt 3 COS C11 gt o Gs 12 C12 FF a 0 X9 e BATTERY NOR TS REMOVE LINK X36 X43 Figures 9 7 BCM connections to two 48V 12 cell battery banks Allis Electric Co Ltd VVVVVVVVV VV VV eife slo page 63 of total 82 48V 12x4 Ce Ce Ce Ce C
28. linked through the auxiliary contacts of the low voltage disconnection switch LVDS If the link is broken LVDS opens this alarm is flagged by the text changing to Red with the words LVDS Open EEPROM Fail This alarm is flagged if the CSU is unable to read write verify the data in its on board EEPROM This function is checked whenever the CSU is required to update information stored in the EEPROM Faulty SMR This alarm is flagged when the CSU finds an SMR that is outside the acceptable current sharing tolerance when passive current sharing is initiated Note that this alarm is only valid for systems that use an analog current sharing scheme SMR Parameter This alarm is flagged when the CSU tries to write a value of a parameter to a rectifier Range that is not within the specified range of the software limits in the rectifier Check the system and rectifier limits in the system Installation and Operation Manual Allis Electric Co Ltd page 76 of total 82 2002 02 User Manual R2485 amp System 12 APPENDIX E Back Panel PCB BPA2 This is designed for integrating AC DC connectors and communication link on one PCB board It will be mounted on the back of magazine first for SMR end Where 2 is mounted in place zi BPA2 outlook Communication terminal Fan terminal BPA2 Fan amp communication terminals AC terminal DC terminal BPA2 AC amp DC terminals Allis Electric Co Lt
29. of Cell Voltages 61 9 4 6 Battery Cell Lead Connection to the BCM board Ne 61 10 APPENDIX C FLOW OF MCSU MENU SCREEN nhanh aa aa aa AERE HE seen anne 70 10 1 CA 70 10 2 1 70 10 3 BATE 71 11 APPENDIX D REMOTE MONITORING SOFTWARE WINCSU2000 Ne 72 11 1 MINIMUM SYSTEM REQUIREMENTS s eene ann anna 72 11 2 OPERATING SCREEN 72 12 APPENDIX E BACK PANEL 2 0100111 06660 6666 77 13 JAPPENDIX F EATCH LOCK DEVICE a oae nena axe ewe DE e ee Ea ago t cunas 600250 78 14 APPENDIX G EXAMPLE SYSTEM OUTLINE RPS2250 250 48 eiie eese een nhanh nnn nnn narrar nnn 79 14 1 FRONT VIEVC EXTERNAL retest 2002 79 14 2 FRONT VIEWCINTERNAL 80 14 3 81 14 4 REAR VIEW 82 14 5 TOP VIEW 83 Allis Electric Co Ltd ii 2002 02 User Manual R2485 amp System 15 APPENDIX H DIAGRAM EI 84 15 1 TYBICAERACK WIRING DIAGRAM 84 15 2 SYSTEM INTERFACE BOARD DIAGRAM esee eee
30. on the internal output bus For more information see the detailed section on the MUIB 3 5 Rectifier Installation and Removal In the system the rectifiers are designed to operate in parallel in a N 1 redundant mode Therefore there is never a situation in which it is necessary to set individual rectifier parameters The only exception is the individual fine adjustment of output voltage used to set up the rectifiers for passive current sharing This is normally done automatically by the system controller when the system is first commissioned The rectifiers are designed to be hot pluggable in that they can be plugged into and out of a live magazine A relay in the output circuit ensures that the rectifier output is only connected to the output DC bus when the difference in voltage between the output bus and the rectifier output is less than 0 5 volts This ensures that there Allis Electric Co Ltd page 8 of total 82 2002 02 User Manual R2485 amp System is no disturbance to the DC bus when a rectifier is plugged into the magazine It also prevents damage to the output connector from arcing which would occur if the connection was made with a large voltage difference An inrush limiting circuit in the AC input circuit which utilizes a relay and an inrush current limiting resistor limits the disturbance to the AC source to an acceptable level when a unit is plugged in with AC voltage present on the AC bus 3 6 Removing a Rectifie
31. particularly useful when the plant is in a remote unmanned location The second option shown in Figure 2 3 is the basic arrangement described above with the addition of an auxiliary single phase AC monitoring module and Battery Cell Monitor This module which is mounted in the AC distribution module connects via a ribbon cable to the MUIB and is used to monitor the AC voltage current and frequency Allis Electric Co Ltd page 3 of total 82 2002 02 User Manual R2485 amp System AC Distribution System Controller Modem or PC with 1 Monitor MUIB Supplies System Remote Alarms and Controller NEN Ambient Temp Magazines of Sensor AC DC Converters Battery Cell Monitor Batteries DC Distribution DC Loads with Circuit Breakers Figure 2 3 System with additional single phase AC Monitor The third option shown in Figure 2 4 is the basic arrangement with the addition of an auxiliary three phase AC monitoring module The latter connects directly to the MCSU via a ribbon cable and provides monitoring of the three AC voltages and currents as well as the AC frequency It has multiplexing circuits on board which effectively extends the analogue monitoring ability of the MCSU It is possible to have both the single and three phases AC monitoring modules connected at the same time This can be useful where the AC output of an inverter running off the 48V DC bus can be monitored at the same time as the three phase AC supply to the
32. rack with limited space Battery Current Transducers A Hall effect current measuring unit which is installed over the cable connecting the battery string to its circuit breaker The signal lines are connected to terminal on the MUIB Temperature Sensors Modules assembled typically in a copper lug with a mounting hole at one end and sensor cabling running from the other sealed end to terminals in the MUIB The sensors are normally placed in the battery compartment to measure battery temperatures AC Monitoring Module An optional module which is available in either single phase or three phase models The module connects in series with the incoming mains supply by having the phase wires inserted through the current sensors on the module before having the terminating at the active link The phase neutral or phase phase voltages are separately sensed by wires connected to terminals on the module which also provides power to the measurement circuitry The signals for the single phase module are connected to the MUIB via a 10 way ribbon cable while the three phase signals connect directly to the MCSU via a 16 way ribbon DC voltage regulation and power for the MCSU is derived from the output DC bus at the point where a constant voltage is most useful This is typically at the point where the cables run to the batteries External voltage sensing for voltage regulation at a load can also be done but in most systems the system voltage is sensed
33. rectifiers AC Distribution System Controller Modem or PC with 36 Monitor Supplies System Remote Alarms and MUIB Controller Ambient Temp Magazines of Sensor AC DC Converters Battery Cell Monitor Batteries DC Distribution DC Loads with Circuit Breakers with 19 Inverter and AC Monitor Figure 2 4 System with additional 3 phase AC Monitoring simultaneous monitoring of single phase inverter also possible Allis Electric Co Ltd page 4 of total 82 2002 02 User Manual R2485 amp System 2 3 Rectifier Specific Configurations A typical mechanical arrangement of a system comprising 5 rectifier is shown in Figure 2 5 Consists of a rectifier magazine 6U with provision for air intake 3U and exhaust 3U for the rectifiers which are cooled by natural convection A 1U high shelf accommodates the MCSU MUIB and modem if the latter is used The arrangement shown is designed to fit into a standard 19 rack or can be fitted with side flanges for wall mounting The width of the MCSU is the same as that of two rectifiers so that a very compact 3 rectifier arrangement can be configured as shown in Figure 2 6 A combined AC and DC distribution module completes the system 9 AG Mag 2000 1U e gt e eG e
34. such an extent that a unit does not share to the extent that it should If the lack of sharing is extreme then either a CURRENT LIMIT or NO LOAD alarm will be active and the operator should then refer to the next Section If however the current sharing is not so extreme as to generate an alarm a regular check of the current sharing among the rectifiers can lead to early detection of any units which may be developing a fault In general if only one or two units are drifting the most probable explanation is a drifting component in the main secondary voltage control card of the SMRs involved If the other hand many of the SMRs are not sharing satisfactorily then the most likely problem area is in the MCSU 6 2 2 Integrity of Electrical Connections It is good practice to check all accessible electrical connections at regular intervals to ensure that no hot spots develop over time due to loose connections An infra red hot spot detector is very useful for this function Alternatively mechanical connections can be checked manually for tightness 6 2 3 Fan Filter Cleaning As the SMRs are fan cooled the air filter at the front of the fans will require regular cleaning to ensure there is sufficient air flow to keep the units operating reliably If the air filter is overly clogged the lack of air flow may lead to the heat sink temperature rising to the point that the Th high temperature alarm is active To clean the air f
35. the MCSU unit forward and hold it in a horizontal position until the back is just clear of the rack Step 3 Unplugging the 34 way ribbon cable first Step 4 Unplugging the 16 way ribbon cable Allis Electric Co Ltd page 48 of total 82 2002 02 User Manual R2485 amp System Step 5 Unplugging the 4 wires communication links Step 1 Replugging the 4 wires communication links Step 2 Replugging the 16 way ribbon cable Step 3 Replugging the 34 way ribbon cable To make sure the 34 way ribbon cable is connected last Allis Electric Co Ltd page 49 of total 82 2002 02 User Manual R2485 amp System Step 4 Arranging all wires amp cables smoothly in right position before plugging it into the magazine Step 5 Pushing the MCSU backward and holding it slowly in a horizontal position Step 6 Pushing the MCSU completely to the end Step 7 Remounting the MCSU front panel with screws supplied Allis Electric Co Ltd page 50 of total 82 2002 02 User Manual R2485 amp System Step 8 Replace MCSU is done and then check the operating parameters Allis Electric Co Ltd page 51 of total 82 2002 02 User Manual R2485 amp System 8 APPENDIX A Summary of Programmed System Parameter The table below lists the parameters programmed into MCSU for the installed system by sequential menu item Parameter Nominal
36. to battery cell terminal yo clear to BCM H a connectors solder together solder resistor together Figure 9 4 Lead termination at battery cell The M6 ring lug depending on type of battery is screwed onto the cell terminals The other end of the wire is screwed onto the 5 0mm pitch screw terminals Details on how the cells connect to the BCM board are discussed in later sections 9 4 4 Installing the board Generally the BCM board is located close to the batteries so that it is not necessary to run large number of wires for long distances The 16 way ribbon cable connecting to the MCSU can be up to 10m long but should be connected directly to the MCSU instead of connected at the end of another chain of peripherals This helps reduce errors This connection can be achieved by using a daisy chain ribbon where the one cable has connectors placed Allis Electric Co Ltd page 60 of total 82 2002 02 User Manual R2485 amp System part way along its length as well as the ends Mount the BCM using the standoffs supplied in an area protected from mechanical and electrical hazards If the rack does not provide any holes or studs for mounting the BCM use Figure 9 5 BCM mounting hole locations as a template for drilling the mounting holes Be sure to allow at least 25mm space around the board to allow for wiring to the board Figure 9 5 BCM mounting hole locations 9 4 5 Dip Switch Select
37. to warning LED indicators 3 Press ENTER In this case the message indicates that there are three alarms present and they can be observed by pressing the ENTER button When the ENTER button is pressed the most recent alarm name such as the one shown below will appear on the display 1 Battery Switch If the ENTER button is not pressed again for ten seconds the display will revert to the home screen and the sequence begins again To view the remaining alarms use INC and DEC buttons ENTER returns to the home screen Pressing the ENTER button a fourth time will return the display to the home screen The time and date of any given alarm can be obtained by entering the ALARM LOG menu 5 4 MCSU Alarms A list of all the possible alarms which can be enunciated is shown in the following table SMR Alarm Combination of one or more SMR alarms SMR Alarm Urgent One or more SMRs have shut down igh TT 7 zm DDC Controller SMR DC DC converter fault Temp Sensor Fail Temp sensor in SMR faulty S C or where available Batteries are discharging Allis Electric Co Ltd page 26 of total 82 2002 02 User Manual R2485 amp System Alarm Name Comments LED AC Volt Fault AC voltage lower or higher than preset value When no AC monitoring module is used this comes together with SMR Comms Fault AC Freq Fault AC frequency lower or higher than preset value Amb Temp High Ambient temperature higher than pres
38. used e Signal conditioning accuracy for the battery and load currents is typically 1 e Actual number of batteries used can be programmed via MCSU front panel or WinCSU remotely e Load transducer can be switched on or off via MCSU front panel or WinCSU remotely e When the load transducer is switched off MCSU automatically reverts back to calculating load current using SMR and battery currents e There are 5 relay outputs 4 digital inputs LVDS interface CB trip input and Battery switch input e Ambient and battery temperature sensors can be connected to this board When single phase AC monitoring is required MMIB1 can be used and is also connected to this board e The MUIB2 also provides power to the MCSU this board can be connected to the bus and battery at the same time e Two spare analog inputs are available input range 0 to 5V if MMIB1 is not used 3 9 4 Connections to MCSU Two ribbon cables connect between MUIB2 and MCSU One 34 way ribbon cable for the main port connects X1 on MUIB2 to MCSU The other 16 way ribbon cable connects X180 or X179 on MUIB2 to the aux port on MCSU Since all devices connected to the aux port are in parallel it can be connected to any point on the aux port Note The connection of the 16 way ribbon to X179 or X180 must be made if any of X76 X89 X103 X115 or X129 are used 3 9 5 Load Current Transducer Input A load current transducer is connected to X76 of the MUIB2 via a connector us
39. 0 way ribbon cable to MUIB Allis Electric Co Ltd page 54 of total 82 2002 02 User Manual R2485 amp System Figure 9 1 Single Phase AC monitoring unit MMIB1 block diagram Allis Electric Co Ltd page 55 of total 82 2002 02 User Manual R2485 amp System 9 2 MMIB2 Three Phase AC Monitoring Module For large power systems where the rectifiers are balanced over all three phases an optional three phase monitoring module MMIB2 can be used to measure the AC supply phase neutral voltages phase currents and supply frequency The MMIB2 connects directly to the auxiliary port at the rear of the MCSU or at the end of a daisy chain of auxiliary port connections and does not use any connections on the MUIB The module is normally fitted inside the AC distribution module if one is used A block diagram of the MMIB2 is shown in Figure 9 2 below d 5 ACF TRIM
40. K MONITOR S Connects X9 C12 to X43 C13 X36 24V BATTERY 2 CO 12x2V Cells C154 aa gt Cell 1 C13 14 gt 2 C14 C15 gt gt 0 Cel 3 C15 C164 gt gt 4 C16 C17 gt 0 Cell 5 C17 C18 gt Cel 6 C18 C194 gt gt Cell 7 C19 C20 gt gt 0 8 C20 C21 gt gt 9 C21 C22 gt gt Cell 10 C22 C23 gt gt 0 11 C25 24 OS 0 12 C24 05 X43 Figures 9 10 BCM connections to two 24V 12 cell battery banks Allis Electric Co Ltd page 66 of total 82 2002 02 User Manual R2485 amp System BAIT CEI 5 Cic C1 C2 C2 C3 C3 C4 C4 5 C5 C6 C6 C7 C7 C8 C8 9 C9 C10 C10 C11 C11 C12 C12 7T T 1 1 ERY MONITOR 322 X9 X36 FOR C134 C15 14 C14 15 C15 C164 C16 17 C17 18 C18 C19 C19 C20 C20 C21 C21 C22 C22 C23 25 C24 24 gt rock de X43 Figures 9 11 BCM connections to two 24V 6 monoblock battery banks Allis Electric Co Ltd page 67 of total 82 24V BATTERY 1 6x4V Monoblocks Monob Monob Monob Monob Mon
41. LTAGE INPUT LVDS CONTROL UP TO 12 DIGITAL INPUTS 4 RELAY OUTPUTS TOS ANALOGUE INPUTS 25 LEADS MONITORING 24 CELLS MODEM POWER 1 gt 25 LEADS 1 MONITORING 24 CELLS REMOTE PC TO 4 BCMs Allis Electric Co Ltd page 85 of total 82 2002 02 User Manual R2485 amp System 15 3 BCM Connector Diagram Standard Modem Battery Cell Monitor 1 Battery Temperature Sensor Attached to a battten MCSU rear view To Phone Line MUIB Port To SMR RS232 Modem SMR Power Comm Cell Monitoring Leads Battery Cell Monitor 2 To other aux devices 5 C O contact relay outputs Cell Monitoring Leads Battery Cell Monitor 3 1 Current Sensor Ambient Temperature Sensor 2 Outside battery rack Current Sensor BATT3 Current Sensor Cell Monitoring Leads BATT 4 Current Sensor Battery Cell Monitor 4 LVDS status Cell Monitoring Leads NEG 7 1 Bat System Voltage BATTERY RACK Sensing Terminals LVDS Optional BUS TO LOAD BUS Allis Electric Co Ltd page 82 of total 82 2002 02
42. MCSU the following procedure should be followed Mini CSU connector Diagram Shown in Figure 7 1 1 Remove the knurled screws holding the MCSU front panel to the rack and remove it 2 Gently pull the MCSU unit forward and hold it in a horizontal position until the back is just clear of the rack 3 Unplug the 34 way cable first removes all power and then the other cables The SMRs will now be working in passive current sharing mode and current sharing may not be as good as previously The output voltage will also rise to the value pre set in the SMRs Please refer to the paragraph 7 2 2 as per steps for removing MCSU from the magazine 4 Bring the replacement MCSU to its position in the rack and plug in all the cables making sure that the 34 way cable is connected last Please refer to the paragraph 7 2 3 as per steps for inserting the MCSU into the magazine 5 Gently push unit into rack and secure the MCSU front panel with screws supplied 6 Check operating parameters RS 232 Port A zi Auxiliary Module 3 phase AC Monitoring Owires Modem DC Power 2wi wires To MJIB SMR control and monitoring 34 Way Ribbon Ribbon 4wires s 4 Figure 7 1 MCSU connector Diagram Allis Electric Co Ltd page 47 of total 82 2002 02 User Manual R2485 amp System 7 2 2 Removing the MCSU from the magazine Step 1 Remove the knurled screws holding the MCSU front panel to the rack and remove it Step 2 Gently pull
43. MUIB and optional modules for monitoring 1 phase AC power The example rack power system outline is shown in Figure 2 1 MagMCSU DC distribution Battery breakers AC Module Magazine gt Battery set Figure 2 1 Rack Power system outline Allis Electric Co Ltd page 2 of total 82 2002 02 User Manual R2485 amp System The system can be configured in a number of ways depending on the customer and application requirements The simplest option is shown in Figure 2 2 AC Distribution System Controller Modem or PC Supplies System Remote Alarms and MUIB Controller Ambient Temp Magazines of Sensor AC DC Converters Batteries DC Distribution DC Loads with Circuit Breakers Figure 2 2 System with basic monitoring and control The AC Distribution may simply consist of circuit breakers one for each magazine of rectifiers in the system or may also include an isolator depending on customer requirements The rectifiers housed in one or more magazines are paralleled and the DC output connected to the load via the DC Distribution module and to the battery bank which may be a single battery or two batteries connected in parallel A Low Voltage Disconnect Switch LVDS may also be included in series with the batteries in order to prevent over discharging the battery bank in the event of
44. MUIB to allow monitoring of a total of four battery currents and to directly measure one load current The MUIB2 like MUIB provides basic interfacing between the MCSU and the system environment The current transducers are standard 4V full scale Accuracy of signal conditioning for the current signals are typically 1 Use of this board also requires a specific MCSU software version and MagMCSU with a different MUIB2 chassis The software and magazine are backwards compatible with the MUIB The addition of the load current transducer input allows the MCSU to sense the load current directly This provides better resolution of the load current than the calculated current determined from the reported individual rectifier output currents This is because there is an inherent resolution limit for each rectifier current measurement that can significantly degrade the load current resolution when a system contains a large number of rectifiers Another use of the load current transducers is when non AEC rectifiers are used with a MCSU and these rectifiers do not signal their current to the MCSU A load current transducer can be used in such situations 3 9 1 MUIB2 Connections The MUIB2 connector wiring diagram is shown in the table of Figure 3 7 the MUIB2 outline shown in Figure 3 8 connection diagram in Figure 3 9 The table of Figure 3 10 give detailed MUIB2 connectors function Figure 3 7 MUIB2 Connector Wiring Information X1 MCSU 1 34 See MCSU Schemat
45. SU system controller As a result operation information for the system is directly related to the operation of the MCSU as described in this section 5 1 Summary of MCSU front panel controls There are four Menus which can be viewed using the INC or DEC buttons The default or Home menu which contains general system information b SMR menu contains all the parameters regarding to the rectifiers C Battery menu contains all the parameters regarding the batteries d Alarms log which is a chronological record of the last 100 alarms Moving from one menu to another If no button has been pressed for two minutes the display will revert back to the Home screen This shows the output voltage and current To move from any menu to any other menu press the corresponding button E g to move to the Battery Menu from any other menu momentarily press the BATT button To move to the Home menu from any other menu press the button of the current menu E g if in the SMR menu press SMR button to return to the Home menu Scrolling through the Menus To scroll through any menu from the first screen to the last press the INC button To scroll to the last bottom screen first then upwards through the menu to the first screen press the DEC button Incrementing and decrementing programmable parameters To change a programmable parameter press ENTER the value will flash on and off To increase the number press INC to decrease the num
46. V 4V 6V 12V e Up to four BCM board be connected to a single MCSU e Individual cell voltages of a battery can be viewed on the MCSU display in real time The cell voltage rounded to the nearest 5mV applies only to 2V range is displayed together with the cell number and its percentage deviation from the average cell voltage of the battery All the cell voltages can be displayed in a Histogram format on a local or remote PC using WinCSU software e The PC can display the real time cell voltages cell voltages stored during a previous discharge e line graph of cell voltage versus time can be selected as the PC display to observe the manner in which the cell voltages as a whole decreased during a discharge It is also possible to select for all the cell voltages to be displayed in different colors or for a particular cell voltage to be displayed together with the average cell voltage as a function of time e As the BCM is permanently connected to the batteries an automatic daily or weekly down loading of the steady state cell voltages for the different batteries in a system ban be made to a remote monitoring PC discharge can be initiated either locally or remotely by triggering the rectifiers in the system into battery discharge test mode In the mode the rectifier float voltage is set to a lower value which ensures that the batteries are carrying the load but not too low so that in the event of battery fai
47. X40 of the MUIB Figure 3 6 shows the pin connections for the battery transducer connector going onto the MUIB Allis Electric Co Ltd page 14 of total 82 2002 02 User Manual R2485 amp System 1 15V MFR Molex 2 415V Conn 09 50 3051 5 pins 08 50 0106 5 GND E _ 4 Way cable Figure 3 6 Battery transducers connection to MUIB 3 8 5 Main features of MUIB The principal features of the MUIB are as follows e Each battery current input accepts input range of 4V to 4V full scale The maximum allowed input is 5V e The battery full scale currents are separated so different transducers for battery currents can be used e Signal conditioning accuracy for the battery and load currents is typically 1 e Actual number of batteries used can be programmed by the user via MCSU front panel or WinCSU remotely e There are 5 relay outputs 4 digital inputs LVDS interface CB trip input and Battery switch input e Ambient and battery temperature sensors can be connected to this board When single phase AC monitoring is required MMIB1 can be used and is also connected to this board e The MUIB also provides power to the MCSU this board can be connected to the bus and battery at the same time e Two spare analog inputs are available input range 0 to 5V if MMIB1 single phase AC monitoring board is not used 3 9 MUIB2 MCSU User Interface Board 2 The MUIB2 is an optional module that may be used in place of the
48. a modem 11 2 Operating Screen System Operating Parameters System Alarms Settings Other Functions Access Buttons Mini CSU Parameters Float V 53 8 Number of SMRs Battery Parameters O Edit v EG Enable Sys High V Alarm 57 0 Reporting Options Equalise 56 0 Sys Low V Alarm V 47 0 48 0 i Start EQ Bat Disch Alarm V Expansion Edit 0 Stat EQ Ah 15 Disch Diff Alarm A 20 Expansion 2 4 AC3ph Start EQ 5 p E dit Amb Temp Alarm 2 Bat Mon E dit Jd 3d Bat Temp Alarm 40 Bat Temp Sensor Alarm Bat Disch Test E dit EG Period wks fi 2 EAE andby MUIB2 V Drop 7 System UPS F Edit Date dd mm yyyy 03 10 2000 Time hh mm ss 15 26 53 Sys Time Mini CSU Version G1150fg Read 03 10 2000 15 26 53 Print Save to Disk Write to MiniCSU Bead m EE Action Buttons Figure 11 1 CSU Parameters Window Allis Electric Co Ltd page 72 of total 82 2002 02 User Manual R2485 amp System Battery Parameters ojx Number of Batteries m Deep Discharge Recovery Lim Number of Cells 24 Float Bat Lim 50 _ Battery Rating Ah 500 _ 50 Deep Discharge V 450 BosTpM 50 Ba FSD A 00 Cente
49. aep ro bed 21 5 24 5 1 SUMMARY MCSU FRONT PANEL 1 aaa a4 ERE RENE HE EE LEE LE 4E 24 5 2 24 5 2 1 Alpha numeric 24 5 2 2 Front Panel PushDutlons d bu vee diese 25 5 2 3 Status Indicating LEDS MCSU sees essen aaa ahhh 25 5 3 OPERATING THE MCS soci So loot 25 5 2 1 Entering and moving through different 25 5 3 2 When an alarm condition exists enar narra nana 26 5 4 URP 26 5 5 MESO HOME MENU SCREENS 27 5 5 1 Three Phase AC Monitoring 27 5 5 2 Home Menu Programmable ananas 28 5 5 3 Expansion Function Selection amp sisse e iiie essen nnn aaa 30 5 6 SMR MNO SR EN 6 32 5 6 1 SMR Menu Programmable
50. agazine configurations shown in Figure 3 1 3 way and 5 way metalwork and wiring are usually manufactured as a module with terminal blocks to accept AC wiring and DC output cables These magazines should be located in the rack to allow adequate cooling of rectifiers noting that the airflow is from the bottom front to the top rear of the magazine A baffle plate or scoop is used to stack multiple magazines to provide inlet exhaust air separation for each magazine The magazines are held in the rack by four M6 screws through the mounting flange and into the rack mounting rail In the case of the 3 rectifier magazine the MCSU is an integral part and access to all wiring is typically via rear access Alternatively the 5 rectifier magazine requires the MCSU to be mounted in a 1U tray either at the top or bottom of the rack thereby requiring some degree of top or rear access to wiring EI WI TT n Jot Jal IAEC R2000 Series x 1070107 qe CENENE H IEEE TEE 2191919 fal IDE TEE zl fal 070 2010 fal 9555
51. an unusually long AC power outage The monitoring and control signals such as battery currents temperature battery switch status LVDS control and status system voltage and ambient temperature are connected to the monitoring and control module MCSU via an interface card MUIB This module is in turn connected to the MCSU via a 34 way ribbon cable A 4 wire cable which carries the digital communications signals that allow control and monitoring of the rectifiers connects the MCSU to all the rectifiers in a parallel arrangement so that all the rectifiers receive the same signal Remote monitoring of the system can be by means of 3 voltage free relay contacts corresponding to SMR shutdown SMR Alarm and High Voltage Shut Down HVSD Alternatively an RS 232 port can be used to display all the system and rectifier information at a local PC or by connection to a Modem and PSN at a remote PC With this facility it is possible to not only monitor but also control all the rectifier and system parameters In addition the system has the capability to dial up to three telephone numbers to connect to the remote PC in the event of a system fault having developed and will continue dialing until the fault is reported With the remote communications option there is also provision for controlling the state of an output relay This relay could be used to control external equipment for example a standby generator or an air conditioner This facility is
52. ansients beyond the levels outlined in the standard then supplementary transient protection is required Larger MOVs 40kA rating are required at the AC main switch board where the power to the rack originates For wiring systems where the neutral is bonded to the building earth at the main switchboard as used for example in Australia USA and Canada one MOV from line to neutral is required for single phase and three MOVs from each line to neutral are required for three phases For wiring systems where the protective earth is bonded to the neutral conductor only at the distribution transformer as is common in Europe three MOVs are required for a single phase line to neutral line to earth neutral to earth and seven MOVs are required for three phase wiring phase to neutral x 3 phase to earth x 3 and neutral to earth 3 4 Cabling Auxiliary Equipment and Circuit Breakers In general the system needs to have the following modules AC Module DC Distribution Module Battery Circuit Breakers Low Voltage Disconnect Switch LVDS DC Cabling Battery Current Transducers Temperature Sensors and AC Monitoring Module optional These modules are required inside the rectifier rack for normal system operation In smaller systems such as the 3 rectifier configuration many of these modules are already included in the magazine A brief description of the modules and what they connect to is given below along with a detailed rack wiring diagram
53. anual R2485 amp System 9 3 SMM Site Monitor Module Site Monitor Module is an expansion of the MCSU which allows the user to monitor status of equipment which is not a part of an AEC power system It may also be used to monitor other third party DC power systems Its usefulness can be specially appreciated in remote unmanned installations Using the same communication link and WinCSU monitoring software it is possible to supervise a number of such sites from a central monitoring station Four control outputs are provided in the form of voltage free change over relay contacts The relays can be automatically activated in response to an event on any of the module inputs assigned by user or operated manually from a PC Note If the Site Monitor is to be added to an existing installation with AEC Power System change of MCSU software may be required WinCSU software will also may need an upgrade finaloq2 516 GNO finaloq3 516 GND Analogt 516 GND aa Analogs 516 GND finalog 516 GND i Analog 516 GND we finaloq8 SIG GND X64 Output 1 C 0 Output 2 C 0 Dutput 3 Output 4 CONAC Na x95 X106 516 GND c Analogl
54. anual R2485 amp System Batt Config BCM Batt 1 BCM Batt 2 BCM Batt 3 BCM Batt 4 eh av A similar menu but for totally different purposes appears in the Systems menu as follows Num Batteries X where X is the number of batteries The number of batteries entered here is the number of batteries that are being monitored for their currents Num Batteries and BCM Batteries are not related except that value entered for Num Batteries must be greater or equal to BCM Batteries This is because Num Batteries determines the number of batteries accessible via the BAT menu via which we access the cell voltages So if only two batteries are defined for Num Batteries then access to cell voltages of Battery 3 or 4 even if they are defined as 4 in the BCM Batteries menu will not be possible Normally Num Batteries is set to be the same as BCM Batteries 5 10 2 Frequency of measurement To allow for a wide battery capacity range which can range from 10 minutes to 8 hours the cell voltage polling frequency is programmable in 1 minute increments A typical polling interval is 4 minutes which would yield 15 points for a 1 hour discharge For programmed test discharge of 30 minutes a polling interval of 2 minutes might be used This parameter is not accessible from the MCSU front panel It is only programmable from a PC running WinCSU 5 10 3 Battery Cell Measurements When BCM is active the indiv
55. ber press DEC When the desired number is on the screen press ENTER again To change parameters when the security function is activated If an attempt is made to alter any parameter when the security function is activated the display will show the message Panel Locked To change a parameter simultaneously press all three INC DEC and ENTER buttons for three seconds Then proceed to change the parameter in the normal way When scrolling through the Alarms log To observe the date and time of a given alarm do not press any button for at least two seconds The date and time will display for two seconds and then the alarm name will be displayed for two seconds The display will alternate between the two screens in this manner until a button is pressed 5 2 MCSU Components The MCSU is a supervisory and control unit for a DC plant comprising up to 15 rectifiers connected in parallel with two parallel battery banks The unit is 1U in height and a magazine is available which fits across a 19 rack and accommodates the MCSU the MUIB as well as a modem of maximum dimensions 40x150x220 HxWxD in mm 5 2 1 Alpha numeric LCD Display A single line 16 character alphanumeric back lit display with large 9mm high characters normally displays output Allis Electric Co Ltd page 24 of total 82 2002 02 User Manual R2485 amp System voltage and current as well as the system status Float FL or Equalize EQ This is the default or ho
56. cement will be performed Alarm Condition Possible Cause Action Suggested UNIT OFF No AC power to SMR Check AC supply to SMR if necessary reset CB supplying SMR SMR faulty Replace SMR Equalize Mode Automatic cycle in progress due to No action required recent AC power failure Automatic Periodic Equalize cycle in Check on MCSU if system is in AUTO or MAN progress mode If in AUTO mode display will show remaining Equalize time Check log for previous cycle date If cycle too early replace MCSU Check Operator log in BATT menu scroll to Manual Stop EQ screen and press ENTER to terminate cycle if necessary SMR Urgent If possible restore AC power Check Individual SMRs for obvious problem replace SMRs if necessary signal from MCSU Check Current Limit settings and adjust if necessary or batteries being recharged problem with one or more SMRs If unit is not sharing correctly replace SMR Check Equalize Float Mode and change if in mode incorrect state change SMR if MCSU is not requesting Equalize mode Check AC supply and confirm condition If AC is not within operating limits OK replace SMR units if only two show alarm condition Check 4 way communications cable between MCSU and all SMRs Cct Breaker Check PDU Power Distribution Unit tripped Check MUIB connections and tighten Battery Switch Close if appropriate Repair connection Amb Temp High Reduce temperature Check and replace if necessary Repair connectio
57. creens 1 Volts 220V AC voltage of phase 1 AC voltage of phase 2 AC2 Volts 220V AC voltage of phase 3 AC3 Volts 220V Allis Electric Co Ltd page 27 of total 82 2002 02 User Manual R2485 amp System AC Current of phase 1 AC1 Current 12A AC Current of phase 2 AC2 Current 12A AC Current of phase 3 AC3 Current 12A AC Frequency AC Freq 60 0Hz 5 5 2 Home Menu Programmable Parameters The screens below all display programmable parameters within the MCSU home Menu To change a parameter press INC button until the desired parameter is found then press ENTER The parameter value will flash on and off Press INC to increase the value or DEC to decrease the value until the desired value is on the screen Press ENTER to enter the value into memory Ambient temperature alarm level Amb Tmp Alrm 45C Float voltage High level Volts Hi 56 6 Float voltage Low level Volts Low 50 5V Security on or off When security function is activated attempts to alter any programmable value will result in the Secu rity On display showing Panel Locked To temporarily unlock the system press all three INC DEC and ENTER buttons simultaneously for three seconds The system reverts back to the locked state if no button is pressed for longer than 2 minutes Panel Locked Security Off System type This parameter can be set to Standby or UPS Set to Standby for systems where the load current is normally z
58. d page 77 of total 82 2002 02 User Manual R2485 amp System 13 APPENDIX Latch Lock Device Handle Latch Pulling out the handle and then automatically unlock the latch Allis Electric Co Ltd page 78 of total 82 2002 02 User Manual R2485 amp System 14 APPENDIX G Example System Outline RPS2250 250V 48Vdc 14 1 Front View External 1800mm P EB7INRUA 600mm FRONT VIEW Allis Electric Co Ltd page 79 of total 82 2002 02 User Manual R2485 amp System 14 2 Front View Internal
59. ded manually by pressing ENTER when this screen appears This screen is only obtained if the system is in Equalization mode When ENTER is pressed the system reverts to Float mode and the window changes to that shown ready for a manual equalization start This screen is only obtained if the system is in Float mode A Low Voltage Disconnect Switch LVDS is often integrated into the system to disconnect the batteries from the load in the event that the AC power outage is too long causing the batteries to discharge beyond a safe level The voltage level at which the LVDS opens is set in this screen When this screen is as shown the LVDS switch opens automatically when the voltage drops to the trip level set in Allis Electric Co Ltd V Start Eq On V Eg Trig 46 0V V Start Eq Off Start On Odis Trig 10Ah Start Off EQ End 25 EQ End OFF Equal Dur 20Hr Equal 12 Wk Manual Stop Manual Start EQ LVDS 44 0 LVDS Auto page 36 of total 82 2002 02 User Manual R2485 amp System the previous screen When the AC power is restored and the system output voltage rises after the rectifiers start up the LVDS switch will close automatically To operate the switch manually press ENTER and the Auto will flash on and off Press INC to scroll to Closed followed 0 Closed by Open followed by Auto again Press ENTER at the desired state e g Open to open the switch LVDS O
60. e Ce Ce Ce Ce 1 2 3 BATTERY 2 LV Cells 2002 02 User Manual R2485 amp System 1 2 55 C4 C5 C6 C7 C8 C9 C10 C11 Tad al C1 C24 C3 C4 5 C6 C7 C8 C9 C10 11 12 C12 BATTERY CL lt MONITOR 8 C20 C21 C22 C23 C244 24 X9 X36 IN FOR eate efe ei X43 Figures 9 8 BCM connections to two 48V 8 monoblock battery banks Allis Electric Co Ltd page 64 of total 82 48V BATTERY 8x6V Monoblocks Monoblock 1 Monoblock 2 Monoblock 3 Monoblock 4 Monoblock 5 Monoblock 6 Monoblock 7 Monoblock 8 Connects 9 12 to X43 C13 24 CELLS REMOVE LINK 48V BATTERY 2 8x6V Monoblocks Monoblock Monoblock Monoblock 3 Monoblock 4 Monoblock 5 Monoblock 6 Monoblock 7 Monoblock 8 2002 02 User Manual R2485 amp System ES 48V BATTERY 1 Ss e _ 4x12V Monoblocks Monoblock 1 62x Monoblock 2 C2 5 Monoblock 3 C3 4 lt Monoblock 4 4 5 O gt e E ie iy ies BATTERY 2 7 4x12V Monoblocks D
61. e higher than Batt Chg Curr Lim set point check corresponding current transducer check connections to transducer check MUIB connections Check battery temperature readings in Batt menu Check and if necessary replace faulty sensor check connection to MUIB Replace MUIB Replace faulty SMR Check and re adjust threshold level Action Suggested MCSU fault Replace MCSU SMRs not sharing load current Faulty MCSU voltage and current control loop IODEM signal analog active current control Replace MCSU Current Limit Allis Electric Co Ltd Communications link malfunctioning or faulty rectifier digital current control Float or Equalize level on MCSU set too high too low SMR not responding to MCSU Faulty microprocessor card in SMR Unit not current sharing if only one showing power limit Load current too high if more than one unit showing alarm Load circuit breakers have tripped and there is no load If only one unit showing alarm comms line to SMR faulty Faulty SMR Batteries being recharged if more than one unit showing alarm If only one unit shows alarm internal control loop faulty Internal control loop faulty System has no load page 45 of total 82 Replace Comms cable and or SMR Check and re adjust Float or Equalize level on MCSU Check and if necessary replace comms cable at back of magazine faulty Replace SMR Replace SMR Reduce load Reduce battery charging current limit
62. e o atis da td oor sa eo nod 14 3 8 4 Battery Current Transducer eiii iei e eee a naa hahahaha 14 3 8 5 Main features OF 15 3 9 MUIB2 MCSU USER INTERFACE BOARD 2 15 3 9 1 2 vis 15 3 9 2 ME 18 3 9 3 Main features OF MUIB2 1 eoo 18 3 9 4 Connections 10 MEL E 18 3 9 5 Load Current Transducer Input siiis a MEAE HERE HERR 18 3 10 19 3 11 CB TRIP BATT SW AND LVDS AUX INPUTS cists oa aha AAA 19 3 12 MMIBI ER 19 4 COMMISSIONING 20 4 1 INDICATORS ON THE RECTIFIER FRONT EE RE LESE RE 20 4 2 OUTPUT CURRENT BAR GRAPH C 20 4 3 E 20 4 4 SYSTEM COMMISSIONING PERF e ARA ER REA S FERRE ER a 20 4 4 1 Bor cuite PET 20 4 4 2 System Parameter Ranges iuis usi ea tee ita sete eto Eo dbs ro pase Eno
63. ed before desired duration time BDT End V 46 0V expired MCSU will restore normal operating parameters and start recharging the battery The test result will be Fail Programmable range depends on the system voltage 24V system 18V to 24V 48V system 36V to 48V 110V system 75V to 120V End capacity of the battery Principle of operation the same as described in par 4 Programmable between 25Ah and BDT End Q DOOAh 9995Ah Reset of failed test alarm This message will be seen only if last test failed and has not been reset Pressing ENT while BDT Ala nm Reset viewing this display will reset the alarm and hide the message The alarm can be also reset from a PC using WinCSU software Manual termination of the test This message is displayed only when the test is running Pressing ENT on MCSU Abort Test Front Panel while viewing this display will terminate test 5 11 1 Results of last Battery Discharge Test The remaining screen of the Battery Discharge Test gives details of the results of the last discharge test The explanation of the codes are as follows Allis Electric Co Ltd page 40 of total 82 2002 02 User Manual R2485 amp System Not Available No test has been performed yet Last The test lasted for desired duration without reaching End V or End Q levels st BDT Pa SS Test terminated prematurely reaching End V or End Q level before duration time
64. ells A total of four BCM units can be used to monitor 4 battery strings of 24 cells each Using the ability of the MCSU to communicate to a remote or local PC cell voltage data accumulated during a discharged can be transferred to a PC and saved The cell voltages can also be viewed in real time when the MCSU is connected to a PC The WinCSU software that is running on the PC can display the cell voltage data in various convenient formats to ascertain the state of health of batteries In the event that the battery behaves in a way which is less than ideal during a test or actual discharge a number of pre programmed parameter levels are used to generate alarms which are annunciated on the MCSU front panel by a LED and screen message and remotely via voltage free relay or via the RS 232 communications port which can connect directly to a PC locally or remotely via a modem t n a N E A 1 DES N 5 X27 prs 0150 2147 2126 2153 2150 17 2170 166 0159 p n 4 2143 RIS 2133 R127 ER EU oam C mies C ue Cds a Np
65. er sets the maximum current which flows BI LI m Vb Vdd 34 into the batteries when the voltage across the two batteries is less than Vdd the deep discharge voltage Vdd is programmed in the next screen Battery deep discharge voltage Vdd Vdd Level 44 0V Battery Charging Current Limit when the battery voltage is between Vdd and the float voltage Vfl This limit is normally BILI m Vb lt Vfl 52 higher than the one for a deeply discharged battery System Float Voltage this sets the system output voltage at the output busbar terminals Sys Float 54 0V Battery Charging Current Limit for battery voltages greater than the float voltage This applies when the batteries are BILim Vb gt 25 being equalized Equalization Voltage This sets the maximum voltage reached during equalization of the batteries Sys Eq u al 59 5 System Voltage Drop This parameter is used to set the maximum voltage that the individual rectifiers can output S S Dro 0 0V over and above the programmed System Float voltage The System Voltage Drop parameter is calculated by summing the resistive voltage drop in each rectifier due to output connector output relay and passive current sharing output slope and the expected drop of the busbars of the system typical value is 0 6V For digital control set the value for the drop to that expected at nominal load Battery discharging alarm level This level is set to a value to which the bat
66. ero Low load alarms are disabled for Standby Set to UPS for systems which typically have more than 2096 load all the time and rely on the batteries to provide backup power System UPS Test function When this function is activated all LEDs on the rectifiers and MCSU begin flashing on and off The AEC MCSU2048 V01 display alternates between showing the software version and a screen with all pixels on Allis Electric Co Ltd page 28 of total 82 2002 02 User Manual R2485 amp System Number of SMRs in the system This number must be entered otherwise the display will show that some SMRs are not responding Number of battery banks in the system DC transducer full scale rating E g if a Hall transducer has 200A 4V rating enter 200 in the screen MCSU Access code address this can be a number up to 7 digits long Clock set used to set the date and time of the MCSU clock Note DD MM YYYY 24 hour clock Modem enable this can be toggled between ON and OFF The screens below will only be displayed if the modem is enabled ON Alarm Report this can be toggled On and OFF If ON the system will dial the first telephone number Phone 1 in the screens below when an alarm occurs If Phone 1 does not answer it will try Phone 2 if 2 does not answer then it will dial Phone 3 If 3 does not answer it will begin again at Phonel Daily Report this can be toggled from ON to OFF When ON the system will log in to t
67. et limit h Battery temperature higher than preset limit Battery charging current is being limited to preset value Battery discharge rate greater than that preset Earth leakage current greater than the limit set System is in equalize mode R red LED on amber LED flashing not flashing 5 5 MCSU Home Menu Screens The INC button is pressed to scroll through the MCSU menus The following screens will appear in sequence 155A 54 3V FL MCSU Home screen indicates system is in float mode C indicates that battery temperature compensation function is active 1 55 54 3V FLC Ambient temperature is displayed in Degrees Centigrade Amb Temp 25DegC AC Volts for single phase monitoring AC Volts 220V AC Current for single phase monitoring AC Current 16A AC Frequency for single phase monitoring AC Freq 60 0Hz The last three screens are only displayed Expan 1 1 ph is selected see screen towards the end of this menu This will be the case if a system is wired with only the MMIB1 module connected Single phase monitoring is not available in 110VDC and 220VDC systems 5 5 1 Three Phase AC Monitoring Screens In a system wired for 3 phase input it will be necessary to set the 3 phase AC monitoring selection screen towards the end of this menu to Expan2 3 ph AC instead of Expan2 None In this instance the following screens will appear in place of the single phase AC monitoring s
68. expired This will trigger BDT Last BDT Fail Fail MCSU level alarm A cell in a battery string discharged below safe level alarmed available only when BCM fitted and activated Test Last BDT Cell VI failed Aborted due to loss of control of rectifiers not alarmed Last BDT No Cntr Aborted due to load being too low to control discharge current not alarmed Last BDT Lo Load Aborted due to load being too high to support controlled discharge Flagged if all SMRs indicate current limit Last BDT SMR Possible only if rectifiers failed during the test Not alarmed Terminated manually using MCSU Front Panel or from WinCSU Last Aborted If during viewing this display the ENT button is pressed a sub menu with details of the last test result will be accessed if a test was performed The results of the last test are stored in EEPROM The entries are Date of the last test Test 22 1 1999 Duration of the test Last Dur 1 30 Voltage of the battery at the time of termination of the test Last End V 49 2V Remaining estimated capacity of a battery string at the time of termination of the test where n is a number of the End Q Bl 380Ah string The test is disabled for 100 hours if any of the following took place a Controller has been powered up assumes a new installation b AC failure has been recorded c Electrolyte low level has been recorded only if sensor fitted and appropriate versi
69. he telephone numbers below at the time set in the following screen and download the status and all the operating parameters Time of daily report Phone 1 number tried first when an alarm occurs Numbers up to 20 digits long can be stored If the number is longer than 10 digits it is displayed in two screens Example of second screen for continuation of phone number Phone 2 this number will be tried if the first number does not respond Phone 3 this number will be tried if the second number does not respond Allis Electric Co Ltd No of 5 5 15 Num Batteries 1 FS Batt I 200A CSU 1234567 21 01 2002 09 28 Modem ON Modem OFF Alarm Report ON Alarm Report OFF Daily Report ON Daily Report OFF Daily Time 09 28 PH1 0936022233 PH1 PH2 0398880033 PH3 0398880033 page 29 of total 82 2002 02 User Manual R2485 amp System Note To have Alarm Report and or Daily Report sent to local PC switch the Reports ON then Modem Off Audio Alarm Enable can be toggled from On to Off when On the audible alarm will sound when any alarm occurs Audio Alm On The sound can be silenced by pressing the ENTER button Audio Alm Off 5 5 3 Expansion Function Selection amp Parameters The enabling disabling of expansion functions such as AC monitoring Battery Cell Monitoring and Site Monitoring is described below These screens form the last screens seen when stepping through the MCSU home Menu Single Phase
70. his screen shows the estimated charge in the battery at any given time QEst 300Ah Estimated Battery 2 state of Charge if present QEst 300Ah Ampere hour rating of batteries the rated A H number for the batteries must be entered in this screen Bat Rated DOOAh Battery Temperature Compensation Coefficient in mV per Deg C per Cell is entered in this screen The allowable BIC mV C C 0 1 range is 0 1 to 6mV C Cell If the value is decremented below 0 1 the display will show Off Allis Electric Co Ltd page 34 of total 82 2002 02 User Manual R2485 amp System This screen is available only when BTC is active Set temperature level at which System Voltage is not corrected BIC Nominal 20C Range 18 to 27 Note Compensation range is 10 35 Please Note a If there are no temperature sensors connected or if BTC is set to 0 the compensation function is disabled In this instance the status message in the MCSU home screen is FL or EQ instead of FLC or EQC b If the Battery temperature sensor is not connected compensation is then based on the ambient temperature sensor C If both Ambient and Battery temperature sensors are connected the compensation is based only on the battery sensor d If temperature compensation is activated the SMR voltage setting is automatically adjusted by the MCSU on a regular basis Battery Charging Current Limit applicable for voltages below Vdd This paramet
71. ibution A 3U enclosure containing all the DC load distribution circuit breakers and usually the Battery string circuit breakers If the Battery breakers are included in the DC distribution module an isolation barrier is usually required along with clear labeling which battery string the breakers are protecting The input to the DC distribution module comes directly from the DC output line of the rectifiers that is NOT connected to the system DC earth LVDS A DC contactor capable of breaking the full load fault current of the batteries when the system voltage falls below the minimum deep discharge level The LVDS is connected either at the common point of the battery strings or in series with each string to isolate the battery common terminals from the DC line connected to the system earth The control for the LVDS comes from terminals on the MUIB DC Cabling The choice of DC cabling and or busbars is based entirely on the DC current rating of the system Consult the local National wiring standard for the selection of cable busbar size for the DC connections One suggested method of DC cabling for medium systems 6 8kW is to provide short 100mm x 6mm busbars at the external DC interface with a number of holes to attach smaller DC cables Then connect cables up to 25mm from the DC terminations to the output terminals of the individual magazines The flexibility of the DC cables can be a benefit over fixed busbars when fitting components into a
72. ic X28 AN1 1 Positive analogue input max voltage 5Vdc X2 USER N O relay contact Common of analogue I P N C relay contact X31 AN2 As for AN1 Allis Electric Co Ltd page 15 of total 82 2002 02 User Manual R2485 amp System N O relay contact X50 POWER I P i N C relay contact i Common i N O relay contact N C relay contact i X2 FAN SPEED Bat ve terminal Bus ve terminal No connection X2 HVSD X2 ALARM N O relay contact X65 LVDS Coil 1 3 N C relay contact 2 between pins 1 and 2 between pins 1 and 2 Pim NM 8 LN X2 SMR S D between pins 1 and 2 2 No connection 1 2 3 X22 C B TRIP Contact closure required Sensor ve between pins 1 and 2 X32 1 PHASE AC See 1 phase AC Monitoring module sch Contact closure required X18 AMB TEMP between pins 1 and 2 Contact closure required between pins 1 and 2 1 X45 USER4 Current 2 15 103 No connection Curren
73. idual cell voltages can be monitors on the MCSU by selecting a Battery from the Batt Menu and pressing ENTER The cell information will appear on the screen and the next and previous cells can be selected by pressing the INC or DEC buttons See below Battery 1 Current screen appears after pressing BATT Pressing ENTER brings up the next screen Batti 1 2A Battery cell parameter Battery 1 Cell 01 cell voltage 2 225V which is deviating 12 from the average B1CO1 2 225V 12 voltage of the battery string Battery 1 Cell mm Cell voltage n nnnV which is deviating from the average cell voltage of the 1 n nnnV pp battery string INC and DEC to change cell number 5 11 Battery Discharge Test Note This function is only available on special versions of MCSU software and appears as the last item in the Battery Menu screens The Battery Discharge Test is a software function in the MCSU which performs a periodic controlled battery discharge using the load to discharge the battery The test can be used to confirm capacity of the battery in the same way aS a manual discharge using an external load would except the normal system load is used without disconnection Allis Electric Co Ltd page 39 of total 82 2002 02 User Manual R2485 amp System While Battery Discharge Test is active the display will alternate between the Home Screen and the message BDT in PROGRESS The system alarms Battery
74. ier related The red LED indicates that one or more of the rectifiers in the system is shut down 5 3 Operating the MCSU 5 3 1 Entering and moving through different Menus To scroll through the MCSU menu from top to bottom just press the INC button If the DEC button is pressed the screen at the bottom of the menu will appear first and will be followed by the other screens in reverse order This can be useful when it is desired to access a screen near the bottom of the menu To enter the other menus momentarily press the relevant button SMR BATT or ALARM LOG If at any time it is necessary to return to the MCSU or home menu just press the current menu button once E g if the present menu being scrolled is BATT just press BATT button again and the screen will return to the default home screen The INC and DEC keys are also used to increase or decrease parameter values when the parameters are programmable In this case press ENTER first The parameter value will begin flashing on and off Press INC to increase the value Allis Electric Co Ltd page 25 of total 82 2002 02 User Manual R2485 amp System or DEC to decrease the value until the desired value is obtained Then press ENTER again to actually enter the value into memory 5 3 2 When an alarm condition exists If one or more alarm conditions exist at any time the following message will alternate with the home screen for 2 seconds every six seconds in addition
75. if it is too high Reset circuit breakers Check and replace comms line Replace SMR No action required Replace SMR Replace SMR No Action Required 2002 02 User Manual R2485 amp System Alarm Condition Possible Cause Action Suggested H S Temp High Fan Fail Units fan cooled only Fan Fan faulty Replace fan if connection is OK fan if connection is OK microprocessor card is faulty HVDC not OK High Volts SD LVDS Open Battery discharged to the limit voltage Check AC voltage and reset if possible level due to no AC power Sys Volts High Temperature compensation coefficient Set correct temperature compensation set too high coefficient Faulty MUIB or MCSU Replace MCSU Sys Volts Low Volts Low threshold in MCSU set too Reset level to correct value high Temperature compensation coefficient Set correct temperature compensation set too high coefficient Battery Disch AC Volt Fault Set correct levels AC Freq Fault limited to preset value Batt Sym Alarm Battery discharge current differential Set correct level of Disch I Diff in BATT menu level set too low Battery current sensor is faulty Check and replace sensor if necessary Faulty MUIB or MCSU Replace MCSU Allis Electric Co Ltd page 46 of total 82 2002 02 User Manual R2485 amp System Alarm Condition Possible Cause Action Suggested Earth Leak Alarm Excessive Earth current due to either Locate source of earth leakage c
76. ilter using compressed air or similar means Replace media ensuring that it is centrally located on the protective wire grille and push retainer in place After a period of 5 to 10 years depending on average ambient temperature and air cleanliness the fan bearings will begin to cause a slowing of the fan until the Ff fan fail alarm is activated In such an instance the fan must be replaced from the magazine Allis Electric Co Ltd page 42 of total 82 2002 02 User Manual R2485 amp System 7 Fault Finding and Replacement Procedures This section describes in some detail the possible causes for alarms that may occur from time to time and the procedures that should be followed to clear the alarms and more importantly redress the problem or cause of the alarm It is assumed here that the most that a field maintenance person will do is change a complete module It is normally impractical to attempt to repair a particular unit without test equipment which is normally only available in the manufacturer s service laboratory The recommendation is for spare complete units to be kept on site This includes a complete SMR a MCSU unit and a MUIB sub assembly The fault finding procedures are presented below 7 1 System Fault Finding Procedures The following table outlines suggested procedures to be followed if it is assumed that no internal repairs of units will be attempted It is assumed instead that only MCSU adjustments and unit repla
77. in Figure 3 2 2 7 vare 185 E 3 Neutral 4 Earth SMR To MUIB Modem DC Power tot To LOADS MiniCSU E X22 MUIB vey TRIP To X65 MUIB LVDS Coil Manual LVDS ME NNI 2 Bypass Switch ire XIBMUIB D Ambient Temp Sen LVDS Contactor To X64 MUIB LVDS Aux s TEMP Dotted li BAT 1 Current tj Bat 4 Switch i Battery 1 Dotted line LA H 2 TM guum i T Rack Cabinet To X33 MUIB mha i To X17 MUIB 2 BAT TEMP 48D Battery Temp Sensor To X40 MUIB 2 H 2 Current Bat 2 Switch To 323 MUIB Toreximaumire BAT SW Tt Allis Electric Co Ltd page 7 of total 82 2002 02 User Manual R2485 amp System Figure 3 2 Rack Wiring Diagram AC Module A 3U enclosure containing all the AC circuit breakers for the rectifiers single or three phase active links neutral links and main protective earth link for connection to the installation AC system In any system larger than 3kW it is advisable to balance the loads between all three phases Consultation of local supply authority requirements is advised DC Distr
78. ing the pin connections shown in Figure 3 11 MFR Molex Conn 09 50 3051 pins 08 50 0106 1 15V co 2 15V 3 SIGNAL 4 NOT USED 5 GND pL M 4 Way cable Allis Electric Co Ltd page 18 of total 82 2002 02 User Manual R2485 amp System Figure 3 11 Load transducer pin connection for MUIB2 3 10 Power Input Power to a MCSU is connected to this MUIB MUIB2 via connector X50 Pin designations are also labeled on the PCB as well Both the bus and battery voltages are connected to the MCSU via this connector The MCSU takes power from either the battery or bus depending on which voltage is higher The system voltage is read by the MCSU via the bus terminations of this connector 3 11 CB Trip Batt SW and LVDS Aux inputs CB Trip X22 is used to sense the CB status Batt Sw X23 is used to sense status of battery switch LVDS Aux X64 is used to sense the status of the LVDS switch Open contacts on any of these 3 input creates an alarm condition on the MCSU therefore when any of these 3 inputs are not used a shorting plug should be installed on those not in use 3 12 MMIB1 input the single phase AC monitoring board is connected to connector X32 This board must not be connected if the two additional analog inputs X28 and X31 are in use The reverse is also true that the two additional analog input AN1 X28 and AN2 X31 must not be connected to anything when the MMIB1 is connected Refer to MCSU
79. ion of Cell Voltages Battery configuration is selected via the main menu of the MCSU whereas the cell or monoblock voltage must be selected via dip switch S65 on the PCB The following table indicates the DIP switch setting for different cell monoblock voltages CELL MONOBLOCK LEFT SWITCH CENTRE SWITCH RIGHT SWITCH VOLTAGE 1 2 3 9 4 6 Battery Cell Lead Connection to the BCM board The battery cell voltage sensing leads are terminated with 13 way female Weco 5 0mm pitch screw terminals This plugs onto the connectors on the BCM board How the cell voltage sense leads connect to the BCM board depends on the battery configuration The following Figures 9 6 9 13 show the connection between the battery to the BCM board for different configurations of the battery If more than 2 batteries are used a particular configuration simply repeat the connection method for batteries 3 and 4 Allis Electric Co Ltd page 61 of total 82 2002 02 User Manual R2485 amp System C14 gt gt C1 C24 C2 C34 C3 C44 C4 C5 C5 C6 Bo C6 C74 gt 7 C8 gt C8 C9 C9 C104 gt 5 C10 C114 gt 5 C11 C124 gt gt C12 C134 9 __ IN FOR MONITOR SELLS C13 C14 15 C16 Clea Gigs C19 C20 21 C22 C25 C134 X36 ML Not used if
80. ions can generate such an alarm An SMR Warning Battery Temp High Alarm only indicates that the rectifiers are operating at Ambient T High the extremes of their operation characteristic which can eee easily occur when the power is first restored after a long Bat Switch Closed discharge As such this alarm by itself is not meant to CB Trip indicate a problem exists SMR HVSD LVDS Closed SMR Comms A failure of the communications between the CSU and EEPROM Fail the rectifiers causes the SMR Comms alarm to be Bat Discharge Symmetry Alarm flagged The usual cause is either a broken wire bad BatT S connection or that a rectifier is not responding because it has no power available for its internal microprocessor Faulty SMR check the SMR status window SMR Parameter Range Bat Disch Low Discharge Test Fail Bat Switch Closed On the MUIB there is a connector that is designed to be linked through the auxiliary contacts of the battery circuit breakers If the link is broken circuit breaker opens then this alarm is flagged by the text changing to Red with the words Bat Switch Open CB Trip On the MUIB there is a connector that is designed to be linked through the auxiliary contacts of the load circuit breakers where available If the link is broken circuit breaker opens then this alarm is flagged by the text changing to Red LVDS Closed Open On the MUIB there is a connector that is designed to be
81. ith batteries and load the commissioning procedure is as follows e Make sure there is no load on the DC bus and that the batteries are disconnected e Insert a rectifier into the top left position SMR 1 in the system and turn the AC power on The rectifier should Allis Electric Co Ltd page 20 of total 82 2002 02 User Manual R2485 amp System power up and start the MCSU Using either the MCSU front panel or a PC connected to the RS 232 serial port program all the MCSU parameters according to the system requirements Make sure that the number of rectifiers in the system is correctly set It is recommended for systems that are to be commonly commissioned that the PC option be used The benefit being that predetermined configurations can be stored on disk and easily downloaded to the MCSU at any time Set up any parameters necessary to operate auxiliary equipment such as Battery Cell Monitor BCM Mains Monitoring Interface Board MMIB Site Monitor etc Put all the remaining rectifiers on line one at a time by inserting the rectifier into the magazine and switching on the corresponding AC breaker where necessary Check that each unit powers up and communicates with the MCSU This is determined by checking that the MCSU has a message window corresponding to the rectifier number similar to SMR2 0A With all rectifiers operating correctly add a load to the system of at least 30 of the rated system current Check that the
82. ith respect to earth With no external leakage current paths from the floating system the positive and negative voltage rails should be at equal potential about earth When an external leakage current is present the value of the current is displayed by the MCSU As well an alarm level can be programmed as shown below Earth leakage current display shows the leakage current to earth in mA E Leak I 0 2mA Earth leakage current alarm threshold this can be set in the range 1 0 to 9 5 mA E Leak Alm 5 0mA 5 10 Battery Cell Monitor Setup Note This function is only available on special versions of MCSU software and appears as the first option in the Expan2 sub menu For 110V and 220V systems refer to the BCM2 BM3 sections for an appropriate configuration table 5 10 1 Relationship between BCM Batteries and Num Batteries With the BCM option enabled the BCM parameters must be setup before monitoring can be performed The screen indicating BCM Batteries is where you define the number of batteries whose cell voltages are to be monitored by the MCSU There is no need to program the MCSU how many BCM boards are connected The MCSU automatically calculates the number of BCM boards that it requires from the number of BCM Batteries that you entered The number of BCM boards PCBs required for different battery configuration is shown in the following table 48V top 24V bottom Allis Electric Co Ltd page 38 of total 82 2002 02 User M
83. l Voltage versus time for all cells over entire discharge time left and for selected cells over a Zoomed section of time and voltage right Window Allis Electric Co Ltd page 74 of total 82 2002 02 User Manual R2485 amp System Battery Cell Log Iof x Battery Cell Log Ioj Xx Relative Charge 10 15 2 Logging Time Mins Logging Time Mins CSU Log Start Time 3 10 2000 17 44 55 Mouse Left Zoom Figure 11 7 Typical discharge log showing up a problem with a cell Window Allis Electric Co Ltd page 75 of total 82 2002 02 User Manual R2485 amp System Figure 11 8 MCSU Alarms Table Ala zu sias s SMR Urgent This alarm indicates one or more rectifiers is flagging a Voltage High serious alarm such as HV shut down SMR Fail The Voltage Low alarm is termed Urgent because the system is no SMR Urgent longer able to perform with its specified capacity Such a condition requires immediate maintenance attention to SMR Warning prevent the possibility of a system failure SMR Comms AC Frequency Fault AC Voltage Fault SMR This alarm indicates a minor alarm on one or more Warning rectifiers is present The rectifiers being in current or Charge Current Limit power limit or the system being under no load Battery Discharge condit
84. llow do not appear if the function is switched off Press INC to scrol to next window The battery configuration must now be entered The configuration Batt Conf 4Ax12V refers to cell type 2 4 6 or 12V and how the cells are connected to the monitor After pressing ENTER current configuration will flash Scroll through available configurations and press ENTER again once the correct battery type is chosen Declare number of battery banks to be monitored Maximum is 4 BCM Batteries 1 Scroll to the next window to set a high voltage threshold for voltage An alarm is posted if cell voltage exceeds Vhi Cell 2 5 this value Press ENTER and increment decrement the value as desired in the normal way Allis Electric Co Ltd page 31 of total 82 2002 02 User Manual R2485 amp System Similarly a low threshold can be set for the cell voltages If during a discharge or any time a cell voltage falls below Vlo Cell 1 this value an alarm is raised dVc is a differential voltage threshold It is the percentage voltage by which the voltage of a particular cell exceeds the dVc Cel 10 average cell voltage for the whole battery Scroll to the next window to set dVc the low differential cell voltage threshold dVc Cell 10 Site Monitor The site monitor is primarily designed to be operated with WinCSU from a PC However once set up the analog signal levels can be viewed and the alarm level
85. lure during the test the rectifiers will prevent the voltage from falling below the set voltage which enable the load to continue functioning correctly This test can be arranged to occur in non critical times and is used Allis Electric Co Ltd page 59 of total 82 2002 02 User Manual R2485 amp System to monitor the condition of the battery strings 9 4 2 BCM Specifications Battery configuration options 48V systems 12Cell x 2V 6Cell x 4V 4Cell x 6V x 6V 4Cell x 12V 2Cells x 12V Maximum battery voltage vee Number of cells 24 maximum perboard Cell Voltage selection DIP switch setting on the board 4V max input 6 66V 6V max input 10V 12V max input 20V Note Cell can mean both single battery cell or monoblock Accuracy for 1 year 10mv at 0 C to 40 C fees Resolution 5mV per cell 2V 4V 6V range 10 cell 12V range Sampling interval range for discharge log 1 60 minutes Power supply from MCSU Maximum distance from MCSU 10m of 16 way ribbon cable 9 4 3 Preparing the battery for connection to the BCM Battery cells are not connected to the BCM directly 560 PRO2 resistors are inserted between BCM and the cells to clear any fault that would arise if a battery cell lead were shorted The resistors are mounted as near as possible to the battery terminal in order to protect as much of the wiring as possible A typical connection is shown Figure 9 4 M6 lug
86. may cause Pulling out the rectifier up to half of unit exposed the rectifier dropped and the broken handle 3 7 Inserting a Rectifier into the Magazine Although the connectors in the unit are designed for hot pluggability it is advisable to turn off the AC power to Allis Electric Co Ltd page 10 of total 82 2002 02 User Manual R2485 amp System the input connector by means of the related circuit breaker in the AC distribution module before plugging in the unit Hold the unit by the handle provided with one hand and holding it in the correct orientation by placing the other hand under the unit place the unit carefully on the guide rails provided and gently slide it into the magazine Press the unit into the magazine until it is flush and clicks into place This action has the effect of locking the rectifier in position so that it will not fall out in the event of severe shaking as might occur in the event of an earthquake Switch on the relevant AC circuit breaker in the AC distribution module The rectifier will start automatically and connect itself to the DC bus at the appropriate time Allis Electric Co Ltd page 11 of total 82 2002 02 User Manual R2485 amp System The following please find the right steps for inserters a rectifier into the magazine Step 1 Using one hand holds the bottom of the rectifier and meanwhile pulling out the handle Step 2 Plugging a rectifier into the magazine smo
87. me screen 164A 54 5V FL Whenever there is no push button activity for more than 40 seconds the display always reverts to this home screen Note the examples shown is for 48V systems 5 2 2 Front Panel Pushbuttons There are pushbuttons associated with the LCD screen for the purpose of entering different Menus and for scrolling through the menus The layout of the pushbuttons is shown below BATT LOG O SYSTEM ok 456A 546V FL 556 M Apart from the MCSU or Home menu which includes mostly system oriented parameters there are three other menus which can be accessed by momentarily pressing the relevant pushbuttons a SMR menu which includes the rectifier related programmed parameters as well as the output current and heat sink temperature for each rectifier b Battery menu in which all the parameters appertaining to the batteries are found C Log which stores all the individual alarm information together with date and time starting with the most recent alarm A total of 99 alarms are stored in memory 5 2 3 Status Indicating LEDs MCSU In addition to the alphanumeric display there are also three LEDs to indicate system status as follows SYSTEM OK Green ALARM Amber SMR SHUTDOWN Red When all three LEDs are off the unit is off and there are a number of possible reasons for this For example e DCis not present e Internal failure of MCSU The amber LED indicates any alarm condition either system or rectif
88. n Batt Temp High OR One of the 2 battery sensors is Check battery temperatures and if necessary Temp Sensor N A reporting temperature higher than increase ventilation and cooling Allis Electric Co Ltd page 43 of total 82 2002 02 User Manual R2485 amp System Alarm Condition Possible Cause Action Suggested pre set level Allis Electric Co Ltd page 44 of total 82 2002 02 User Manual R2485 amp System Alarm Condition Batt Temp High OR Temp Sensor N A Volts High Volts Low SMR HVSD Possible Cause Set point is too low Temperature Sensor in MCSU not attached or faulty Faulty MUIB connection s Faulty MCSU card SMR fault Float level set too high on MCSU MCSU fault AC power has failed system on battery power Alarm threshold level set too high All SMRs are off due to MCSU Inhibit signal Battery charging current limit LED on due to faulty battery current signal this will depress float voltage Battery Temperature Compensation too high due to faulty battery temperature monitoring Battery Temperature Compensation too high due to faulty MUIB Output voltage too high due to SMR fault HVSD threshold on SMRs set too low re adjust if necessary temperature sensor Check and adjust if necessary Replace MCSU Restore AC power if possible Check set point and adjust if necessary Check reason for signal if necessary replace MCSU Check battery currents If one of them shows figur
89. ncy are measured using the analog inputs 9 3 4 System Set up The set up of the site monitor including labels of inputs scale factors alarm levels designation of relays to operate and the type of digital input source normally open or normally closed can only be done using a PC running WinCSU See WinCSU operation manual for details Once programmed monitoring of the levels and minor modification of levels and scaling on site can be done from the front panel of the MCSU see Operation section of this manual but primarily the site monitor is designed to be used from WinCSU SWITCHING EQUIPMENT 5 TEMP 4 PREDEFINED BATT TEMP DIGITAL INPUTS 5 C O RELAY 4 BATTERY CURRENT CONTACT SENSORS OUTPUTS LOAD CURRENT LVDS STATUS AIR SENSOR LVDS CONTROL CHIE POWER amp SYSTEM VOLTAGE INPUT HF UP TO 12 DIGITAL IP s 1 INVERTER FE SITE 4 RELAY MONITOR GUTRUTS T MODULE UP TO BATTERIES ANALOGUE IP s Battery Celfh 25 LEADS MONITORING 24 CELLS UP TO 4 Figure 9 3 Example Site Monitor Wiring Diagram Allis Electric Co Ltd page 58 of total 82 2002 02 User Manual R2485 amp System 9 4 BCM Battery Cell Monitor The Battery Cell Monitor BCM is an add on module for the MCSU It is used to monitor individual cells of a battery during float or equalization operation or during a discharge Each BCM unit is capable of monitoring up to 24 c
90. ng and control program that extends the capabilities of AEC CSU and AEC MCSU to the Windows 95 98 NT4 platforms Both controller types are referred to under the general term of CSU in this document as the functionality is common to both WinCSU can be used to connect to any number of remote sites by modem Each site is required to have its own phone number and CSU Access Code number The CSU at each site can be configured to contact WinCSU by modem in the event of an emergency alarm condition or on a daily basis WinCSU can also be directly connected to a single local CSU Both emergency and daily reports are automatically saved if no WinCSU operator is present Information about the status of the system is divided into functional groups and presented in separate windows Only windows containing information relevant to particular system configurations are shown on the screen Access to operating parameters is available only as a pop up window to avoid screen clutter due to too much information Once WinCSU is installed and run the on line help file is made available and is highly recommended for use in conjunction with this manual 11 1 Minimum System Requirements The following equipment is required to establish a connection to a CSU e Computer running Windows 95 98 NT4 with at least 5MB of disk space available and 16MB of RAM e Alive Rack Power System using either a CSU or MCSU e Ameans of connection either a direct connect cable or
91. ob Monob 24V Monob Monob Monob Monob Monob ock 1 ock 2 ock 3 ock 4 ock 5 ock 6 BATT 6x4V Monoblocks ock ock ock ock ock Monob ock 1 2 5 Connects X9 C12 to X43 C13 CELLS REMOVE LINK ERY 2 2002 02 User Manual R2485 amp System CA COS CoH C10 C11 BATTERY MONITOR 7 J x N EN FOR CELLS X356 X43 Figures 9 12 Allis Electric Co Ltd 24V BATTERY 1 29 4x6V Monoblocks Monoblock 1 Q Monoblock 2 2 M Monoblock 4 OF onoblock 3 22 24V BATTERY 2 oD 4x6V Monoblocks Monoblock 1 Monoblock 2 Monoblock 3 Monoblock 4 Nu REMOVE LINK Connects X9 C12 to X43 C13 24V BATTERY 5 gt 4x6V Monoblocks Monoblock 1 Monoblock 2 Monoblock 3 Monoblock 4 24V BATTERY 4 4x6V Monoblocks Monoblock 1 Monoblock 2 Monoblock 3 onoblock 4 YY BCM connections to four 24V 4 monoblock battery banks page 68 of total 82 2002 02 User Manual R2485 amp System 24V BATTERY 1 2x12V Monoblocks Monoblock 1 Monoblock 2
92. om a two way connector on the magazine back plane PCB BPA2 The two lines used to provide DC power to the fans is also used by the rectifier control microprocessor to sense the magazine position resistor on the magazine back plane A different resistor value is used in each magazine position up to 15 different positions to that position A circuit consisting of only a few components is used enable the microprocessor to achieve both functions The DC voltage to the fan is varied by the control microprocessor according to need At loads up to 10 amps the fans are off At current s greater than 10A each fan is driven at a voltage proportional to load current with full voltage applied when the load is greater than 47 5A or when the heat sink temperature is greater than 50 C 4 4 System Commissioning To commission a system modification of system parameters on the MCSU is required This can be done manually through the front panel of the MCSU or by using a PC running WinCSU that is connected to MCSU via the RS 232 serial interface It is assumed that the operator commissioning the system has a knowledge of programming system parameters The system parameters can vary widely depending on the system configuration and battery requirements It is advisable to consult the battery data sheets as a reference when determining the system parameters to be programmed into the MCSU 4 4 1 Commissioning Procedure With a newly installed system w
93. on of software installed If an automatic test was scheduled during that period it will be performed at the next opportunity at the BDT Time Allis Electric Co Ltd page 41 of total 82 2002 02 User Manual R2485 amp System 6 Maintenance In this section some general routine maintenance procedures are described which should be carried out to ensure that the equipment performs to the high reliability standards that it has been designed to 6 1 Warnings and precautions Since the unit utilizes high voltages and large storage capacitors it is imperative to take great care when working on the unit In particular only qualified personnel should be allowed to service the units In addition the following precaution should be observed WARNING Do not remove the cover with power on Allow two minutes to elapse after switch off before removing the cover to make sure high voltage capacitors are fully discharged 6 2 SMR Maintenance Since the SMRs are fully alarmed and operate in an active loop current sharing arrangement there is no need for regular checks or adjustments of operating parameters However some regular checks can be an early warning of problems waiting to happen 6 2 1 Current Sharing Under normal conditions the output current variation from the average rectifier current by every rectifier should be within 2A or 3 whichever is less It is possible however for internal loop parameters to change to
94. othly Step 3 Pushing the rectifier to the end and please make sure the handle which sitsfl at within the rectifier front panel Note If operating a rectifier when not inserted in the magazine or not inserted into its proper magazine it will only operate at reduced output power 40 since it senses that there is no fan current no fan connected 3 8 MUIB Mini User Interface Board Connections between the MCSU the external transducers and other inputs are made using the connectors provided on the MUIB and allow monitoring of a total of two battery currents Terminals are provided for alarm relay contacts battery and ambient temperature sensors two battery current transducers LVDS control and circuit breaker operation detection using the breaker auxiliary contacts for both the battery and load circuit breakers A 10 way ribbon cable port is available for direct connection of the optional MMIB1 single phase AC monitor module 3 8 1 MUIB Connections The table of Figure 3 3 give detailed information on the pin outs of the various MUIB connectors MUIB outline and detailed connection diagram is given in Figure 3 4 showing the location and labeling of the connectors on the MUIB This information is necessary when making various external connections of sensors and control during the system installation The table of Figure 3 5 give detailed MUIB connectors function Allis Electric Co Ltd page 12 of total 82 2002 02 Use
95. pen Allis Electric Co Ltd page 37 of total 82 2002 02 User Manual R2485 amp System 5 8 Alarms Log Screens A record of the most recent alarms is kept in the MCSU memory and can be viewed by momentarily pressing the Alarms Log pushbutton Alarm Log Pushbutton pressed the screen shows the number corresponding to where the particular alarm is in 1 AC Freq Fault relation to the most recent alarm which is number one followed by the alarm name as shown in the example below If the INC button is pressed within two seconds the second alarm will be shown If pressed again the third alarm appears etc If the button is not pressed for two seconds a date time screen will appear which shows the alarm sequence number 1 0 1 12 02 09 09 followed by the date and time at which the alarm occurred To clear the alarms log press ENTER whilst in the Alarms Log menu and the following screen will appear DEC to Clear Log Press the DEC button as requested and the log will be cleared and the following screen will confirm it No Alarms 5 9 Earth Leakage Detector Note MUIB3 and MUIB5 only This function is only available 110V 220V versions of MCSU software and with special software for 24V and 48V systems The parameters appear after the Batt Rated xxAH item in the Battery Menu screens The MUIB3 5 interface boards have a circuit that is designed to monitor any imbalance in the positive and negative DC bus voltage w
96. played The following screens will appear in turn when the INC button is pressed Batti 12A Battery 1 Current Battery 2 Current if present Batt2 14A This screen is available During an AC power outage when the batteries are supplying the load the difference Disch I Diff 20A discharge current between one battery and the other is an indication of the state of the batteries More particularly if one battery is supplying considerably less current than the other it is usually an indication that a problem exists with that battery The discharge current difference to activate the alarm is entered in this screen A reasonable value is 20 of the total discharge load current Batteries discharging is unequal if one of the two batteries supplies less current than the other by more than a Batt Disch Fail programmed amount Battery Temperature If a sensor is fitted the battery temperature is shown in degrees Celsius Since there is provision for only one sensor the sensor should be located in the hottest spot of the two batteries If the temperature sensor is not connected the message reads as shown sensor not attached When Bat Temp Sensor condition alarm is selected this screen will show Bat Temp 35DegC Battery over temperature alarm level This is programmable level and can be adjusted in the normal way Batt T Alarm 60C by the INC DEC and ENTER buttons Estimated Battery 1 state of Charge t
97. ppropriate measures and examples of options In Equalize Mode the SMRs are capable of outputting voltages in excess of the SELV limit of 60V Accordingly appropriate precautions must be observed in Equalize Mode if the voltage exceeds 60V The input disconnect device is the rectifier back plane connector The rectifier is live at all times when the rectifier back plane connector is connected Take care when removing the rectifier as it may be too hot to touch the metal casing especially if the ambient temperature is high and the unit has been operating at maximum load When removing pull the unit halfway out of the magazine and let cool for 2 3 minutes before handling Allis Electric Co Ltd page 1 of total 82 2002 02 User Manual R2485 amp System 2 Configuration 2 1 System Description This Manual has been written with the objective of giving the reader a sufficient understanding of the system and its constituent parts in order to be able to install commission and operate the system 2 2 General Description This modular system has been designed specifically to power 48V telecommunications equipment requiring accurate temperature compensated Float and Equalisation voltages low output noise and EMI levels A typical system comprises a number of rectifiers depending on the power requirement of the system and a monitoring and control subsystem comprising a monitoring and control module MCSU a User Interface Board
98. r Manual R2485 amp System Figure 3 3 MUIB Connectors wiring information See MCSU Schematic X2 USER N O relay contact N C relay contact Common X2 FAN SPEED N O relay contact X39 BATTERY 1 N C relay contact Common X2 HVSD N O relay contact N C relay contact Common X40 BATTERY 2 X2 ALARM N O relay contact N C relay contact Common X2 SMR S D N O relay contact N C relay contact X50 POWER I P Common X17 BAT TEMP No connection Sensor ve Sensor ve No connection Sensor ve between pins 1 and 2 between pins 1 and 2 Monitoring module sch between pins 1 and 2 between pins 1 and 2 between pins 1 and 2 1 2 Contact closure required between pins 1 and 2 voltage 5Vdc 2 3 C2 01 N e AJU i 1 2 5 2 1 3 2 1 2 2 2 3 1 34 3 2 1 0 2 10 1 1 1 1 1 2 3 2 2 1 1 Rza 30 a 4 ve 7 o RD 1 1 is 4 8 SY Y Ws amp a BH x E AME TEMP 2 Current D a t t AN J AN Z F o 0 7 8 6 5 i 3 5
99. r from the Magazine Although the connectors are designed to be hot pluggable it is advisable to first switch off power to the unit by means of the circuit breaker in the AC distribution module before unplugging the unit This is done to prolong the life of the hot pluggable connector Each rectifier has a handle which normally sits flat within the rectifier front panel The handle must be pulled directly forward to remove the rectifier from the magazine A latch which prevents the rectifier from being removed from the magazine under normal conditions is attached to the handle and releases when the handle is forward Please refer to Appendix F WARNING Take care when removing the rectifier as it may be uncomfortably hot to hold especially if the ambient temperature is high and the unit has been operating at maximum load The following please find the right steps for removing a rectifier from the magazine Step 1 Pulling out the handle and meanwhile holding on using fingers to forward smoothly Allis Electric Co Ltd page 9 of total 82 2002 02 User Manual R2485 amp System Step 3 Using another hand for holding the bottom of unpluged rectifier carefully Step 4 Removing out the rectifier completely until the back is just clear of the magazine Step 5 The right way for holding rectifier while moving WARNING Don t hold on a rectifier s handle using one hand only while moving This
100. rack needs a separator or base plate which prevents a burning liquid from escaping the enclosure when poured vertically into the rack This can be achieved by using either a baffle plate below the rectifiers with a front finger grill that traps the liquid or a purpose made separation plate that it mounted below the rectifier magazine to catch burning liquids e Openings in the top and sides of the enclosure must comply with the following e not exceed 5mm in any direction or e not exceed 1mm in width regardless of length or e for the top of the enclosure be constructed that direct vertical entry of falling objects be prevented from reaching bare parts at HAZARDOUS voltage gt 32VAC or gt 60VDC and or e for the sides of the enclosure be provided with louvres that are shaped to deflect outwards an externally falling object e Sufficient ventilation must be provided for rectifier cooling The examples given previously of system configurations provide adequate inlet cooling but the construction of the rack is important in providing exhaust air venting Cooling louvres vent holes or a rack with a top hat construction are all good methods of obtaining good ventilation while maintaining compliance with item ii above The rack needs to be able to mount 19 rack equipment have a depth not less than 400mm and a minimum height for enclosing the magazine and cooling vents of 12U for both rectifier systems 3 2 Magazines The two types of m
101. rammable parameter screens shown below will be displayed 3 phase AC monitor On or Off can be selected after entering Expan 2 sub menu Ex 2 R Allis Electric Co Ltd page 30 of total 82 2002 02 User Manual R2485 amp System AC 3 ph On AC 3 ph Off AC voltage high level if any one of the three phases is higher than the level programmed here the MCSU will 3ph ACV Hi 460V report an AC Volt Fail alarm AC voltage low level if any one of the three phases is lower than the level programmed here the MCSU will report an 3 h ACV Lo 323V AC Volt Fail alarm AC Frequency high level if the AC source frequency is higher than this value the MCSU will report an AC Freq Fail 3ph ACF Hi 63 0Hz alarm AC frequency low level if the AC source frequency is lower than this value the MCSU will report an AC Freq Fail alarm 3ph ACF Lo 58 0Hz AC current sensor rating for 3 phase monitor the rating for the sensors used current transformers must be entered in 3 N h ACI FS 100A this screen Battery Cell Voltage Monitoring When Battery Cell Voltage Monitor is included in software the next window enables the turning ON or OFF of the Batt Monitor Off battery monitoring function Press Enter and the Off word will flash on and off press DEC button and will appear flashing on and off Press Batt Monitor On ENTER and Battery monitoring function will be turned on The windows which fo
102. s and scale factors can be modified from the site monitor sub menu of the MCSU The site monitor sub menu is sub set of Expansion 2 When Site Monitor is declared to be Off no other menu items are displayed Site monitor menu as appears in the Expansion 2 menu Press ENT to access the site monitor sub menu Site Mon itor Off Active or de activate the site monitor by pressing ENT to make On Off flash Press INC or DEC to change state Site Monitor On When not flashing press INC or DEC to view all input levels or states Level of Analog input 1 Press ENT to access alarm levels and scaling factor Flashing of the label text in this case Inverter 0 2V Inverter indicates an alarm condition Threshold above which the input signal will trigger an alarm High Alm 253 0V Threshold below which the input signal will trigger an alarm Low Alm 187 0V Programmed scale factor of analog input Scaled for 4V of input signal 4V adc 200 0V Digital input signal levels only can be accessed from MCSU To modify the logic or the label of the digital inputs the units or labels of the analog inputs a PC running WinCSU must be used 5 6 SMR Menu Screens All information relating to the individual rectifiers is found in the menu activated by pressing the SMR button on the MCSU front panel To return to the MCSU menu at any time press SMR button To return to the SMR menu press the SMR button again When an
103. s are for remote annunciation of alarms HVSD ALARM and SMR S D while two are for control of external equipment One of these two relays for external control FAN CONTROL is programmed so that if any one of the SMR heatsink temperatures exceeds a preset non programmable value the relay closes indicating a thermal overload The closure of the relay can be used to increase fan speed or to turn on idle fans where appropriate In instances where fans are not required the FAN relay can be used as a secondary USER defined relay 3 8 3 Spare Digital and Analog Inputs There are 4 spare digital inputs USER 1 2 3 4 available on the MUIB for the monitoring of external plant associated with the power supply The inputs must be isolated relay contacts or auxiliary contacts which are either normally open or normally closed There is also provision for monitoring two external analog levels via connectors X28 AN1 and X31 AN2 on the MUIB The analog signals must be in the range 0 to 5VDC and can only be monitored if the single phase AC monitoring module is not connected This is because the MMIB1 and the spare analog input share the same input lines to the MCSU To use the spare analog or digital inputs or the spare relays the software for the MCSU must be individually programmed by the manufacturer according to the requirements of the application 3 8 4 Battery Current Transducer Input Battery current transducers are connected to X39 and
104. t Input t F amp r pw aber a pu N amp a d a A2069a H t TRAN 1 AN Z 3 g sco a 5 mig BAT TEMP PHASE AC a a 2 bi LI uaz 5 lun 1 7 gl 8 g 5 gt 5 2 8 rz L d 5 xu nd u TY mu a 3 I 160 150 ENG pay FUSE 2A FUSE 2A FUSE 2A S FUSE 2A 554 k 122 n oh Bus Bat Bus Eug IC me TM gt ur 4 EOS Lm 4 R24 RS5 HF RA TRIP Rr z g LVDS a 5 fi E E EKAA CUN OK UN AAAA AAAA AA AEKA AA E PH LAA I WU I 2 ves S BEL V 4 BAT Sl USER 1 USER 2 USER 3 USER 4 SORER INOT RE LUDS Aux LUDS Coal 8 R es Seg SB 55 ZZ Be om x78 x177 2 SEE fees 5 ED ND en Oy 65508065 zi z T li M ums qux mua R60 075 LE e gt sE nr bd Ic 4 Pa 80 000s cs JN zu SEES M 00000 ERR 2 0126 123 m 106 107 C36 res 624 ees SERO amp la 068 2a 5 5 8 BATl Curren 2 BAT3 Currenl BAT4 Current LOAD Current
105. tery voltage falls to during a discharge It is B Dis Al 45 OV used to issue an alarm indicating that the batteries are discharging Enable disable equalization charging Equalization On Allis Electric Co Ltd page 35 of total 82 2002 02 User Manual R2485 amp System Equalization initialized by voltage level V reached during battery discharge Equalization is initialized when the battery voltage falls to this level Equalization not initialized by voltage level Equalization is initialized based on charge supplied to the load by the batteries measured in Ampere Hours Equalization is initialized when the charge out of the batteries is greater than the level set in this screen Equalization is not initialized by the discharge A H method Equalization is ended based on the level of battery charging current set in this screen If Equalization is to end independently of charging current reduce the value of current in this screen to less than 5 of the A H rating of the batteries programmed in earlier screen and the number will then be replaced by OFF as shown Equalization can be terminated after the time set in this screen If termination is based only on the A H discharge method set this number to its highest value 48 Hr If no equalization occurs due to battery discharges for a period longer than the time set in this screen an equalization cycle will be initiated automatically Equalization can be en
106. ttery Equalization Parameters Automatic equalization of the battery with selectable start and end parameters Parameter Range Steps Equalize start voltage 44 0 50 0V 0 1V Equalize voltage 50 0 61 0V 0 1V Equalize start discharge AH 5 99AH 1AH Equalize time duration 3 48Hrs 1Hr Equalize end battery current 1 Periodic equalize interval 1 52weeks iweek Current range limits are based on user defined parameters Note On units with software version R2485xx and higher equalization can be disabled Battery Cell Monitoring Alarms 10 of BatILim3 OR 3 of Sensor FSD 20 of Bat AH Available when optional module is used Batteries built of different types of cells can be used 4V 6V or 12V monoblocks can be monitored as well as single 2V cells Alarm Range Steps Cell Low Voltage Alarm 1 0 12 0V 0 01V Cell High Voltage Alarm 2 0 16 0V 0 01V Cell Positive Deviation Alarm 5 99 1 Cell Negative Deviation Alarm 5 99 1 Battery Charging Parameters Parameter Range Steps Deep discharge range limit Vdd 40 0 47 0V 0 1V Float charge range limit Vfl 48 0 58 0V 0 1V Battery current limit range below Vdd 5 999A 1A Battery current limit between Vdd amp Vfl 5 999A 1A Battery current limit above Vfl 5 999A 1A Battery V temp compensation BTC 0 6mV C cell 0 1mV Zero BTC voltage set point temp 18 27
107. urrent and failure of load supply isolation or faulty correct accordingly load equipment 7 2 MCSU Fault Finding and Repair Procedures In addition to performing a supervisory function by monitoring output voltage and current and the various system alarms the MCSU also performs a voltage control function in order to achieve battery charging current control battery temperature compensation battery equalization and active current sharing To control current to the lowest battery voltage the MCSU has the ability to suppress the SMR output voltage to a value lower than the minimum battery voltage It therefore follows that it is possible for a MCSU fault to occur which can suppress the SMR voltage to that low level and thus cause a battery discharge despite the precautions that have been taken to ensure that this does not happen In such a situation disconnecting the 4 way cable which connects the SMRs to the MCSU will remove the voltage suppressing PWM control signal and thus avoid the batteries discharging Without the MCSU connected the SMRs will revert to their pre set Float voltage and passive current sharing The MCSU can then be changed to resolve the problem There are virtually no electronic components on the MUIB except for the Remote alarm relays and some fuse links but there are many connectors It is worth checking for poor connections when a MCSU system problem is being investigated 7 2 1 Replacing MCSU To replace a
108. will appear Not Adj usta ble 5 6 1 SMR Menu Programmable Parameters The remaining screens show the SMR related operating parameters which can be changed by pressing ENTER When this is done the number flashes on and off and can then be incremented or decremented by pressing the INC or DEC buttons respectively When the correct value is obtained press ENTER to enter the number into memory SMR high voltage alarm level SMRVHi 56 3 SMR low voltage alarm level SMR V Low 48 1V SMR DC High Volts Shutdown HVSD SMR HVSD 60 0V SMR I Limit 52A Fault Reset by pressing ENTER when this screen is displayed any latched alarm such as HVSD is reset and SMR Fault Reset the unit will restart unless it is damaged or faulty SMR Current Limit Please note that any parameter change will apply to all the SMRs Allis Electric Co Ltd page 33 of total 82 2002 02 User Manual R2485 amp System 5 7 Battery Parameter Menu Screens All information pertaining to the batteries is accessed by momentarily pressing the Batt button on the front panel To return to the MCSU home menu at any time momentarily press the Batt button As for the other menus in general a programmable parameter can be incremented or decremented by use of the INC and DEC buttons respectively If this is attempted when a monitored parameter is being displayed i e not a programmable operating parameter then the message Not Adjustable will be dis

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