UPS471-02-00 PW9000DPA User Manual UK Dated 06/08/14
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4: Operation
4.3.2 Refitting the UPS module
1. Remove the UPS module compartment protection cover (if fitted) by unscrewing four screws on the front.
2. Using two persons to lift the UPS module, slide two thirds of the module into the UPS-compartment (make sure not to
plug the UPS-Module into the rear connector).
3. When you are certain the module is located correctly on its guide rails, push it firmly into its final position, to assure
good contact on the rear plugs.
4. Tighten the four screws on the front of module to secure the module to the cabinet frame.
5. Connect the control panel cable to connector JD7.
6. Start the UPS module and bring it on line
(see paragraph 4.2.1)
.
4.4
Replacing a module in a REDUNDANT multi-module system
If a UPS module goes faulty in a REDUNDANT parallel system, the load will continue to be protected by the remaining
modules which will remain operating in the
ON-LINE
mode (
INVERTER
mode). Under these circumstances the faulty UPS
module can be replaced without having to transfer the load to bypass.
4.4.1 Removing the UPS module
1. On the UPS module to be replaced, simultaneously press the two
ON/OFF
buttons on the UPS control panel.
a) The LED display will give the following indications:
2. Open the UPS module’s parallel isolator (IA2).
3. Open the fused battery isolator(s) associated with the module.
4. The UPS module is now totally shut-down.
5. Disconnect the control panel cable to connector JD7.
6. Remove the four screws on the front of the UPS module that are fixing it to the cabinet.
WARNING:
All the operations in this section must be performed by authorised and trained personnel. By
opening or removing the UPS modules and module covers you run risk of exposure to dangerous voltages!
WARNING:
When removing a UPS module wait for at least 2 minutes after it has been disconnected in
order to allow the DC capacitors to fully discharge.
WARNING:
When the UPS module is removed from the cabinet always fit an appropriate blanking cover.
WARNING:
Two persons are needed to pull out the module from the UPS Frame. The weight of a DPA 50,
40kW module is 60kg (the weight of DPA 10, 8kW60 module is 24kg).
Employ suitable lifting aids and safety platforms where possible.
LINE 1
LINE 2
BY PASS
INVERTER
BATTERY
LOAD
LED
Colour
LINE 1
Green
LINE 2
Off
BY PASS
Off
INVERTER
Off
BATTERY
Green
