Alpha Technologies XM2, XM2-HV, XM2-HP - Manual (Page 66)

4.4 Alarm Indications, continued
Note 1: To clear a Latched Self-Test Fail Alarm, initiate and complete a successful self-test.
Note 2: Remove and replace power supply. Do not try to clear alarm or replace relay while in
service.
Note 3: The Automatic Tap Switch (ATS) option is not available in units sold in North America or
Europe.
NOTE:
Active Alarm or
Abnormal Condition
Probable Causes Corrective Action
Self Test Fail
(see Note 1 below)
36 Volt battery string
below 33.0 Vdc
48 Volt battery string
below 44.0 Vdc
Alarm during a Self-Test
Inverter failure has
occurred
Line Isolation Alarm 1. Check/correct other alarms.
2. Check that correct AC Input Voltage is present
3. Check Battery Circuit Breaker
4. Check Battery Fuse, if installed
5. Check Battery condition and voltage
6. In the event that a Self Test Alarm condition
was already present, re-run the Self Test to
clear the alarm.
7. Change Inverter Module
8. Replace Power Supply
Config Error
Configuration Switch
Settings Incorrect
Power Distribution Board
failure
(see Note 2 below)
1. Check the configuration switch & jumper
settings on the Power Distribution Board
match those required for the power supply.
2. Verify the configuration settings on display
(press UP and Enter simultaneously) match
the application and configuration switch
settings on the Power Distribution Board.
3. Check transformer Output Tap setting to
verify the Inverter Module voltage matches
the Transformer Module voltage and voltage
shown on the label of the Inverter Module
matches the voltage of Transformer Module.
4. Check for corrosion on the Power Distribution
Board.
5. Verify Power Distribution Board to Inverter
Module Ribbon Cable and Connectors are
properly connected.
6. Turn all power off, wait 10 seconds, turn all
power back on.
7. Change Inverter Module
8. Replace power supply.
Tap Fuse Fail
Open ATS fuse
(see Note 3 below)
ATS damage
Power Distribution Board
damage
(see Note 2
below)
1. Check/replace fuse on ATS
2. Check for damaged contacts on the ATS
board relay.
3. Check the configuration switch settings on
the Power Distribution Board match those
required for the power supply.
4. Check that configuration settings on display
(press UP and Enter simultaneously) match
the configuration switch settings on the Power
Distribution Board.
5. Turn all power off, wait 10 seconds, turn all
power back on.
6. Replace power supply
66 017-805-B0-010 Rev. K2