439 S Stoddard Ave
San Bernardino, CA 92401
Ph: 1.877.DSPM POWER
1.877.377.6769
Title:
Single Phase
Doc No.: 074
-
3000
-
AEC
Rev: NR
Page#:
-
49
-
Description:
Emergency Lighting Inverter Maintenance Manual
Date: 08/28/2020
Troubleshooting Cont.
If UPS alarms and buzzer sound, press
“
FUNC
”
key to get alarm code on the fault menu. To clear fault press
and hold
“
FUNC
”
key for 2.5s at fault menu
Code
Cause
Solutions
53
Fan Fault
One or more fans are not working properly or failed.
•
Check if fans all fans are working normally
•
Check if something is blocking fan
55
Overload
Inverter is operating at higher than rated power. System may transfer to
Bypass.
•
Remove non
-
critical loads until overall loads drops to UPS rated
power
57
Overload Timeout
UPS will transfer to bypass, if overload persist in bypass UPS will shut-
down.
•
Remove non
-
critical load
59
Inverter Over Temperature
Inverter heatsink is reading above maximum threshold.
•
Check if fans are working properly
•
Check if anything blocking ventilation
•
Check if the temperature sensor is connected correctly
•
Check if the environmental temp is over the range of UPS
63
Manual Bypass Transfer
If bypass is over synchronization range, output could be interrupted.
65
Battery Low
Battery capacity has reached low limit.
67
Battery Reversed
•
Check if battery conductors are connected properly
69
Inverter Protect
Inverter voltage abnormal or DC BUS is over voltage. UPS will clear
fault automatically, If not, contact DSPM.
78
Parallel Cable Error
•
Check if parallel communication cables are connected correctly
81
Charger Fail
•
Charger is faulty or is not connected. Contact DSPM.
119
Relay Open
•
Inverter relay opened. Contact DSPM.
121
Relay Closed
•
Inverter relay closed. Contact DSPM.
Table 4 Cont.
