37.
Chapter 8: Maintenance
Alarm Condition
Code
Description
Suggested Action
HW Fault M1
M1F Hardware error from the left module
Take all safety precaution, and
then check if the mains voltage
that is in specification. Turn on
the output power with a dummy
load to ensure if it is under
normal operation.
HW Fault M2
M2F
Hardware error from the right
module
Take all safety precaution, and
then check if the mains voltage
that is in specification. Turn on
the output power with a dummy
load to ensure if it is under
normal operation.
SW OVP
OV
Output over voltage
Take all safety precaution, and
then check if the mains voltage
that is in specification. Turn on
the output power with a dummy
load to ensure if it is under
normal operation.
SW OCP
OC
Output over current
Take all safety precaution, and
then check if the mains voltage
that is in specification. Turn on
the output power with a dummy
load to ensure if it is under
normal operation
SW OPP
OP
Output over power
Take all safety precaution, and
then check if the mains voltage
that is in specification. Turn on
the output power with a dummy
load to ensure if it is under
normal operation.
Contactor Interlock
10
Uninstallation of contactor pin in D-
sub connector
Check if contactor pin in D-sub
connector is short.
Output Interlock
11
Uninstallation of output cover
Check if output cover is
correctly installed.
Communication Loss
15
Error from internal communication
Check if the bus between panel
and control card is correctly
connected.
Fan1 Error
17
Error from the left fan
Check if the cable between fan
in the left module 1 and control
card is correctly connected.
Fan2 Error
18
Error from the right fan
Check if the cable between fan
in the right module 2 and control
card is correctly connected.
Bus UVP
20
Input voltage is under operation
range
Take all safety precaution, and
then check if the mains voltage
that is in specification.
Bus OVP
21
Input voltage is over operation range
Take all safety precaution, and
then check if the mains voltage
that is in specification.
Set Point Monitor
23
Error while output fails to reach
setting parameter within setting time
Take all safety precaution, and
then turn on the output power
with a dummy load to ensure if
it is under normal operation.
