Alpha Technologies XM2, XM2-HV, XM2-HP - Manual (Page 80)

5.7 Inverter Module Maintenance
1. Carefully remove the inverter module assembly (see Section 2.3, Inverter Module
Removal and Installation).
2. Inspect the inverter module for signs of dust or corrosion.
3. On legacy models:
Remove the inverter module’s cooling fan shroud and clean the fan’s
foam filter. Verify the fan rotates easily and is free of obstructions. Replace the filter and
fan shroud (filter and fan shroud depend on unit model and version).
4. Reinstall the inverter module (see Section 2.3 Inverter Module Removal and Installation)
and test the power supply for proper operation (see Section 4.1, Start-up and Test).
5. If the power supply passes all previous tests (e.g. Battery Load Test, Self Test):
a. Turn off the utility input breaker to remove input power. The power supply goes into
standby operation.
b. Verify there is no interruption to the output.
c. After five minutes reapply utility power. The power supply then transfers back to
Operation Normal, clears any alarms and starts the battery charger (BULK mode, if
needed). This test adds standby events and time to the event counter.
Circuit boards are static-sensitive and must be handled with care.
Do not remove the fan shroud (Legacy models only) if the inverter module is
installed into the transformer module. The fan can start without warning, possibly
placing the service technician in danger from moving parts.
When DIP switches SW1 and SW2 on PDB are reconfigured, all items in the setup menu are reset to
the original factory defaults.
NOTE:
If the CableUPS fails the following test, there will be a loss of power to the load. Do not
perform the next test step if the power supply or batteries are suspect or the load is at a
critical stage.
CAUTION!
WARNING!
CAUTION!
In the event of a low battery warning alarm, immediately reapply utility power and resolve
alarm condition. Once the cause of the alarm has been resolved, perform Step 5.
ATTENTION:
80 017-805-B0-010 Rev. K2