Parallel Operation - INFOSEC UPS SYSTEM E4 LCD Evolution 10K TM Manuel Utilisateur

12. Operation of changing battery numbers
1) This operation is only available for professional or qualified technicians.
2) Turn off the UPS. If the load couldn't be cut off, you should remove the cover of maintenance bypass switch
on the rear panel and turn the maintenance switch to "BPS" position first.
3) Switch off the input breaker and bypass breaker (only available for 30KVA model). Then, switch off the
battery breaker (only available for long-run model).
4) Remove the cabinet cover, and disconnect battery wire for standard model. Then, please modify the jumper
of JS3 on the control board for 10KVA/15KVA/20KVA models or on INV control board for 30KVA model to set
the battery numbers as following table.
Battery Number
in series
18
19
20
Note:1 = connect with jumper; 0 = no jumper; x = the pins are for other functions.
5) Modify the battery pack for the setting number carefully. After complete it, put the cover back, switch on the
battery breaker for long-run model.
6) Switch on the input breaker and bypass breaker (only available for 30KVA model). Then, the UPS will enter
Bypass mode. If the UPS is in maintenance Bypass mode, turn the maintenance switch to "UPS" position and
then turn on the UPS.

3-5. Parallel Operation

1. Parallel system initial startup
First of all, please make sure all of the UPSs are parallel models and have the same configuration.
1) Turn on each UPS to AC mode respectively (Refer to section 3-4(1)). Then, measure the output voltage of
each UPS to check if the voltage difference between actual output and setting value is less than 1.5V (typical
1V) with multimeter. If the difference is more than 1.5V, please calibrate the voltage by configuring inverter
voltage adjustment (Refer to Section 3-7) in LCD setting. If voltage difference remains more than 1.5V after
calibration, please contact your local distributor or service center for help.
2) Calibrate the output voltage measurement by configuring output voltage calibration (Refer to Section 3-7) in
LCD setting to make sure the error between real output voltage and detected value of UPS is less than 1V.
3) Turn off each UPS (Refer to section 3-4(7.)). Then, follow the wiring procedure in section 2-4.
4) Remove the cover of parallel share current cable port on the UPS, connect each UPS one by one with the
parallel cable and share current cable, and then screw the cover back.
5) Turn on the parallel system in AC mode:
a) Turn on the input breaker of each UPS. If using 30KVA unit, please also turn on bypass breaker. After all
UPSs enter to bypass mode, measure the voltage between output L1 of each UPS and output L2 of each
UPS. If these two voltage differences are all less than 1V, that means all connections are correct.
Otherwise, please check if the wirings are connected correctly.
b) Turn on the output breaker of each UPS.
c) Turn on each UPS in turns. After a while, the UPSs will enter to AC mode synchronously and then, the
parallel system is completed.
6) Turn on the parallel system in Battery mode:
a) Turn on the battery breaker (only available in long-run model) and output breaker of each UPS.
INFOSEC UPS SYSTEM – 4 rue de la Rigotière – 44700 Orvault – France – www.infosec-ups.com
73
Hot Line Tel : +33 (0)2 40 76 15 82 – fax : +33(0)2 40 94 29 51 – hotline@infosec.fr – 06 14 AA 59 203 46
pin1 & pin2 pin3 & pin4
1 0
0 1
0 0
JS3
Pin5 & pin6 pin7 & pin8
0
0
1
X
X
X