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8.5 UPS-Module Replacement in a Redundant 9320 System
WARNING:
All the operations in this section must be performed by properly trained personnel.
By opening, removing or replacing the UPS-modules and module covers you risk
exposure to dangerous voltages!
Do not leave the UPS-module compartment without an appropriate protective cover.
8.5.1 Removing a Module from a Redundant Multi-Module System
WARNING:
Before removing the UPS-module completely, wait 2 minutes until the
internal DC capacitors are discharged.
CAUTION:
Two persons are needed to pull the module from the UPS-Frame. The
weight of a 20 kVA module is 56 kg. (a 10 kVA module is 49 kg.)
8-6
If in a redundant parallel system a UPS-module is faulty, the load will
continue to be protected by the remaining operating modules running in
On-Line-Mode (Inverter-Mode). The faulty module may be replaced
without having to transfer the load to bypass!
To extract the faulty module from the UPS-Frame in a Redundant Multi-
Module Configuration proceed as follows:
1) Identify the faulty Module with the Alarm condition and RESET
the Alarm. The audible alarm will stop.
If the Alarm conditions persist (the LED-Indicator ALARM is red)
there is a fault in the UPS-Module.
2) Open the corresponding Parallel Isolator Switch IA2 of the faulty
Module (switch to position "OFF");
NOTE:
3) On the faulty Module control panel press the two ON/OFF-
Buttons simultaneously to shutdown the UPS-Module;
4) Disconnect cables from connectors JD4 and JD7 on the faulty
module only.
5) Unscrew the four screws on the front of the faulty UPS-module;
6) Pull Module forward slightly by means of the two black handles
until the rear connectors are disconnected.
Parallel Switch IA2-1 belongs to Module 1
Parallel Switch IA2-2 belongs to Module 2
Parallel Switch IA2-3 belongs to Module 3
(*Used in model 9320-C03 only)
Powerware 9320 (10 kVA and 20 kVA) Installation and Operation
*
164201416 REV A 071103
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