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Start, when UPS is
operating apply AC by
connecting the AC harness
Er09
DC BUSS, Abnormal
Low-voltage-level
Line
Displays error code & alarm.
Switch to bypass for 1
line
minute then back to Inverter.
Remove all DC and AC
connections. Connect the
batteries, perform DC Cold-
Start, when UPS is
operating apply AC by
connecting the AC harness
Er10
Inverter Over Current
Line
Displays error code & alarm.
Switch to bypass for 1
line
minute then back to Inverter.
UPS is overloaded.
Check for the ratings being
applied to the UPS output.
Check for a short circuit on
the protected equipment.
Restart the UPS after the
correct load amount is
being used.
Backup
Locks the UPS, then displays
error code & alarm
UPS is overloaded.
Check for the ratings being
applied to the UPS output.
Check for a short circuit on
the protected equipment.
Restart the UPS after the
correct load amount is
being used.
Er11
UPS overheat
Initial backup
Locks the UPS, then displays
error code & alarm
Clean the UPS.
Check the fan
How long has the UPS
been in service.
6” of space for the vents
must be available for
adequate ventilation.
Replace the fan.
Line
Displays error code & alarm.
Switch to bypass for 1
line
minute then back to Inverter.
UPS must decrease internal
heat.
Clean the UPS.
Check the fan
How long has the UPS
been in service.
6” of space for the vents
must be available for
adequate ventilation.
Replace the fan.
Er12
Inverter overload
Line
Displays error code & alarm.
Switch to bypass for 1
line
minute then back to Inverter.
Clean the UPS.
Check the fan
How long has the UPS
been in service.
6” of space for the vents
must be available for
adequate ventilation.
Replace the fan.
Backup
Locks the UPS, then show
error code & alarm, Shut down
if not cooled down.
Clean the UPS.
Check the fan
How long has the UPS
been in service.
6” of space for the vents
must be available for
adequate ventilation.
Replace the fan.
Er13
Charger out of order
Line
Displays error code & alarm.
The UPS keeps running until
Battery Low(11.2nV), then
lock the UPS
Maximum 3 x 55 AH.
Check and test battery
voltages.
What is the age of the
batteries.
Has there been a long
power failure.
Add ABM.
38
CODE
RESULT
OCCURS
STATUS
ACTION
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English
20180312
- This manual is for qualified personnel only