INFOSEC UPS SYSTEM - 4, rue de la Rigotière – 44700 Orvault – FRANCE - www.infosec.fr
Hot Line : tel : + 33 (0)2 40 76 15 82 - fax : + 33 (0)2 40 94 29 51 - [email protected] - 07 05 04 205 04
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6. Switch on the battery breaker of the new UPS (S model) and the input breaker on the “Power Panel”.
Measure the difference between the line (L) connector of new UPS and the Line (L) connector of
Parallel System. If the difference is <1V, the user may switch on the output breaker of the new UPS.
Now the complete system (including the new UPS) has turned to MANUAL BY-PASS mode.
7. On back of the new UPS remove the metal plate from parallel port and connect the parallel cable to
the dedicated connector. Then screw the metal plate back on.
8. On back of each UPS (including the new UPS) switch the input breakers to “ON” position. When all
UPS are in “BY-PASS” mode turn them on one by one by pressing “ON” (front face). Make sure there
is no fault and that all UPS switch simultaneously to “INVERTER” mode. Also check the voltage
between JP1 and JP2 of each UPS: it should be <1 VAC.
9. Please check the voltage difference between all JP2 on the UPS terminal blocks: it should be less
than 5 V. The average voltage rate is 2V.
10. Turn off all UPS one by one by pressing “OFF”. Make sure there is no fault and that all UPS switch
simultaneously to “BY-PASS” mode. Remove the metal plates from the “Maintenance By-Pass Switch”
and turn the switch from “BPS” to “UPS”. Then screw the metal plate back on.
11. Turn on all UPS one by one by pressing “ON” and make sure all UPS switch simultaneously to
“INVERTER” mode. Now is the system working in parallel.
Note: If there is any fault in step 8 and 9, please follow operational process of removing single UPS
to maintain.
11.3
Operational process of removing single UPS
1. To disconnect a UPS please press the “OFF” button twice, the UPS output will be turned off.
2. Turn off the input breaker of the UPS to be removed, the battery breaker (for S Model) and turn off the
input breaker on the “Power Panel”.
3. Switch off the other UPS one by one by pressing “OFF”, make sure there is no fault and that all UPS
switch simultaneously to BY-PASS mode. Remove the metal plates from the “Maintenance By-Pass
Switch” and turn the switch from “UPS” to “BPS”. Screw the metal plate back on. Then turn off all UPS
input breakers. Now all UPS are in “MANUAL BY-PASS” mode
4. Disconnect the UPS to be removed. If the remaining UPS is running in single mode, you must connect
JP1 and JP2 of the output terminal.
5. Remove metal plates from parallel port and disconnect the parallel cable from the other UPS. Then
screw the metal plate back on.
6. Turn on the input breakers of remaining UPS and wait for them to switch to “BY-PASS” mode. Remove
the metal plates from the “Maintenance By-Pass Switch” and turn the switch from “BPS” to “UPS”.
Then screw the metal plate back on. Turn on all UPS one by one by pressing “ON” and make sure
there is no fault and that all UPS switch simultaneously to “INVERTER” mode. Now is the system
working in parallel.
7. Please connect JP1 and JP2 of the terminal block for the UPS which has been disconnected.
