77
7. Service
This chapter introduces the UPS service, including the service procedures of the power module,
STS & control module, battery module and the replacement of air filter.
Warning:
1. Only the customer service engineers can service the power modules, STS module and battery
modules.
2. Remove the power modules, STS module and battery modules from top to bottom to prevent
cabinet from toppling due to high center of gravity.
3.
The static transfer switch (STS) module is NOT hot pluggable.
It should be replaced
only when the UPS is in maintenance bypass mode or completely powered off.
7.1 Replacement Procedures Of Power Module
Warning:
⚫
Confirm UPS is in Line mode or Bypass mode.
⚫
Confirm at least one Power Module remains in the UPS cabinet after one Power Module is
removed
⚫
If all power modules have to be removed, the replacement MUST be under Maintenance
Bypass Operation Mode.
1.
Turn ready switch to
“
”
position
2.
The Power Module FAULT LED (RED) indicator is lit to indicate the Power Module output is off
and disconnected from UPS system.
3.
Use a screwdriver to remove the four screws from fixing holes.
4.
Two people pull out together and remove the Power Module from its slot.
5.
After servicing the module, confirm that the DIP switch of the module is set correctly and the
ready switch is in unready state
“
”.
6.
Push the module into the cabinet and tighten the screws on both sides. Turn ready switch to
“
”
position.
7.
The re-installed Power Module will be turned on automatically when UPS is in line mode.
7.2 Replacement Procedures Of STS Module
Warning:
⚫
Confirm the UPS is operating in Maintenance Bypass Mode.
1.
Follow Section “
3.3.3.1 Transfer to maint
enance bypass” procedure to tra
nsfer UPS into
Maintenance Bypass operation.
2.
Remove the fixing screws on both sides of the front panel of the module and pull the module
out from the cabinet.
3.
After servicing the module, push the module into the cabinet and tighten the screws on both
sides.
4.
Fol
low chapter “3.3.3.2 Transfer to UPS Protection”
procedure to transfer UPS into Bypass
operation
5.
Press menu
→
control
→
system turn on
→
YES to turn UPS on.
Summary of Contents for X90-5S
Page 17: ...15 X90 ENC5S...
Page 18: ...16 X90 SMB350...
Page 19: ...17 X90 ENC10S X90 SMB700 Figure 2 13 Terminal Blocks...