Mitsubishi A1SD75M3 User Manual page 624

14 TROUBLESHOOTING
Servo
Error
amplifier
code
LED display
Overspeed
2031 31 Motor speed reached or exceeded the
permissible speed.
Overcurrent
2032 32 Current not less than the permissible value
flew in the servo amplifier bus.
Overvoltage
2033 33 Converter bus voltage reached or
exceeded 400V.
CRC error
2034 34
Command cable fault
2035 35 Command pulse frequency alarm
Name and definition
1. The command speed exceeded the permissible speed.
2. The acceleration/deceleration time constant is so small that
overshoot occurs.
3. The servo system is instable to cause overshoot.
4. " Pr.103 Motor type" or " Pr.105 Motor speed" setting error
5. Encoder faulty.
1. Output phases U, V and W of the servo amplifier were connected
with each other.
2. Servo amplifier transistor damaged.
3. Ground fault occurred in the servo amplifier output phases U, V,
W.
4. Noise entered the overcurrent detection circuit.
1. Regenerative brake resistor connection fault.
2. Regenerative power transistor damaged.
3. Regenerative brake resistor in the servo amplifier switched OFF.
4. Power supply voltage high.
SSCNET cable is disconnected.
SSCNET cable fault.
Noise entered the SSCNET cable .
The terminal connector is disconnected.
1. Command pulse frequency too high.
2. Noise entered the command pulse.
14 - 36
MELSEC-A
Occurrence factor