Xtreme Power Conversion Corporation
M90 User’s Manual
Page 65
Uninterruptible Power Supply
Service
This chapter introduces how to replace the power module.
Warning:
Only the customer service engineers can do this service.
Remove the power modules from top to bottom, so as to prevent cabinet from toppling due to high center of
gravity.
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 Opera
-
tion 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 discon
-
nected 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 together.
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. If there are more than one power
modules to re-install, please wait 30-second before installing another module.
7. The re-installed Power Module will be turned on automatically when UPS is in line mode.
Specifications
The chapter states the specifications of UPS.
Conformity and Standards
The UPS has been designed to conform to the European and international standards listed below.
European and international standards
Item
Normative reference
Uninterruptible power systems (UPS) –
Part 1: General and safety requirements for UPS UL1778, CSA C22.2 No.107.3-14
Notes:
ESD
IEC/EN 61000-4-2 Level 3
RS
IEC/EN 61000-4-3 Level 3
EFT
IEC/EN 61000-4-4 Level 3
Surge
IEC/EN 61000-4-5 Level 3
CS
IEC/EN 61000-4-6 Level 3
Power-Frequency Magnetic field
IEC/EN 61000-4-8 Level 3
Low Frequency Signals
IEC/EN 61000-2-2
Summary of Contents for M90U
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