Panasonic MINAS A6 Multi Series Technical Reference page 303

11.5Protective functions
PSM
alarm
PSM alarm name
number
10 PSM heat sink overheat
alarm
11 PSM heat sink thermal
alarm
12 PSM overheat alarm
13 PSM thermal alarm
14 PSM contactor feedback
alarm
(To be continued)
11-13
Cause of alarm
The radiator temperature of the power supply
module exceeded the specified value.
1) The ambient temperature of the power
supply module exceeds the specified
value.
2) Use in overload.
3) Power supply module failure:
Failure of temperature detection circuit.
The heat sink thermal that detects the radiator
temperature of the power supply module failed.
The ambient temperature of the power supply
module exceeded the specified value.
1) The ambient temperature of the power
supply module exceeds the specified
value.
2) Use in overload.
3) Power supply module failure:
Failure of temperature detection circuit.
The ambient thermal that detects the radiator
temperature of the power supply module failed.
The logic of the contactor control output (MC1,
MC2) of the power supply module and the
contactor feedback input (DIN1, COM1) do not
match.
1) External magnetic contactor failure.
2) There is a problem with the wiring
between the external magnetic contactor
and the power module input / output
connector.
3) Incorrect logic setting of control output
(MC1, MC2) and feedback input (DIN1,
COM1).
4) Power supply module failure:
Related circuit is broken.
Measures of alarm
Reduce the temperature of the power supply
module.
1) Improve the power supply module ambient
temperature and cooling conditions.
2) Check the operation pattern of all motors
connected to the driver module that
supplies power from the power supply
module.
Set a longer acceleration/deceleration time.
Distribute the acceleration of each motor
over time.
Reduce the load.
Increased power supply module capacity.
3) Replace the power supply module.
Turn off the power and then turn it on again.
If the alarm still occurs, there is a possibility of
failure of temperature detection circuit.
Discontinue use and replace the power supply
module.
Reduce the temperature of the power supply
module.
1) Improve the power supply module ambient
temperature and cooling conditions.
2) Check the operation pattern of all motors
connected to the driver module that
supplies power from the power supply
module.
Set a longer acceleration/deceleration time.
Distribute the acceleration of each motor
over time.
Reduce the load.
3) Replace the power supply module.
Turn off the power and then turn it on again.
If the alarm still occurs, there is a possibility of
failure of temperature detection circuit.
Discontinue use and replace the power supply
module.
Match the logic of the contactor control output
and the contactor feedback input.
1) Try replacing the external magnetic
contactor.
2) Check the wiring between the external
contactor and the power supply module.
3) Change bit1 "DIN1 logic setting" of PSM
Pr.04 "Contactor feedback monitoring
setting"
4) Replace the power supply module.