Vertiv EXM 0080kTK16FN01000, User Manual

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132 Chapter 10 Service And Maintenance
Liebert EXM 80kVA ~ 200kVA UPS User Manual
Note
The module will be blocked by a spring piece on the left side of the module when the module is pulled out of the
cabinet halfway. At this point, you must press the spring piece before you continue to pull the module out.
7. After servicing the module, check that the address of this module is different from those of other
modules and that the address ranges from one to five. Check that the ready switch is in unready state.
8. Push the module (at least 10s after another) into the cabinet, and tighten the screws on both sides.
Then place the ready switch of the module to the down position.
9. Close the UPS output switch, input switch and BCB in turn. In split bypass configuration, it is required to
close both input switches. Two minutes later, the bypass on the power flow diagram of the touchscreen
starts to run, indicating the UPS is operating in bypass mode.
10. Disconnect the maintenance bypass switch, press and hold the INVERTER ON key on the operator
control and display panel for two seconds to manually turn on the inverters, and the UPS transfers to
normal mode.
10.2.3 Service Procedures Of Bypass Module
Provided that the UPS is in normal mode, and that the bypass is normal:
1. Press and hold the INVERTER OFF key on the operator control and display panel for two seconds to
manually turn off the inverters, and the UPS transfers to bypass mode.
2. Close the maintenance bypass, and the UPS transfers to maintenance mode.
3. Disconnect the UPS input switch and output switch in turn. In split bypass configuration, it is required to
disconnect both input switches.
4. Press the EPO button, ensure that the battery current is less than 2A. Open the BCB or disconnect the
batteries.
5. Remove the fixing screws on both sides of the front panel of the bypass module, and pull the module
out of the cabinet. Wait for 10 minutes before servicing the bypass module.
6. After servicing the module, push the module (at least 10s after another) into the cabinet, and tighten
the screws on both sides.
7. Close the UPS output switch, input switch and BCB in turn. In split bypass configuration, it is required to
close both input switches.
Two minutes later, the bypass on the power flow diagram of the touchscreen starts to run, indicating the
UPS is operating in bypass mode.
8. Open the maintenance switch, press and hold the INVERTER ON key on the operator control and
display panel for two seconds to manually turn on the inverters, and the UPS transfers to normal mode.