Mitsubishi Electric MR-J2-03B5 Instruction Manual page 77

8. TROUBLESHOOTING
Display Name
32 Overcurrent
33 Overvoltage
34 CRC error
35 Command
frequency error
36 Transfer error
37 Parameter
error
Definition
Current that flew is 1. Short occurred in servo amplifier
higher than the output phases U, V and W.
permissible current
2. Transistor of the servo amplifier
of the servo
faulty.
amplifier.
Alarm (32) occurs if power is
switched on after CNP2
connector are disconnected.
3. Ground fault occurred in servo
amplifier output phases U, V and
W.
4. External noise caused the
overcurrent detection circuit to
misoperate.
Input value of Power supply voltage is outside the
converter bus permissible voltage range.
voltage 35VDC or
more.
Bus cable is faulty 1. Bus cable disconnected.
2. Bus cable fault
3. Noise entere bus cable.
4. Termination connector
disconnected.
5. The same No. exists in the servo
amplifier side axis setting.
Input frequency of 1. Command given is greater than
command pulse is the maximum speed of the servo
too high. motor.
2. Noise entered bus cable.
3. Servo system controller failure
Bus cable or printed 1. Bus cable is disconnected.
board is faulty
2. Bus cable fault.
3. Printed board is faulty.
4. Terimination connector
disconnected
Parameter setting is 1. Servo amplifier fault caused the
wrong. parameter setting to be rewritten.
2. There is a parameter whose value
was set to outside the setting
range by the controller.
3. The number of write times to EEP-
ROM exceeded 100,000 due to
parameter write, program write,
etc.
Cause
Checking method
8 - 4
Action
Correct the wiring.
Change the servo amplifier.
Correct the wiring.
Take noise suppression measures.
Change battery.
Connect correctly.
Change the cable.
Take measures against noise.
Connect termination connector.
Set correctly.
Review operation program.
Take action against noise.
Change the servo system controller.
Connect the connector of the bus cable.
Change the cable.
Change the servo amplifier
Connect termination connector.
Change the servo amplifier.
Change the parameter value to within the
setting range.
Change the servo amplifier.