Mitsubishi QD75M4 User Manual

15 - 38
MELSEC-Q
15 TROUBLESHOOTING
Classifi-
cation of
errors
Error
code
LED
indicator
of servo
amplifier
Error name Description Cause
Parameter "
Pr.103
" to "
Pr.105
"
setting error.
2031 31 Overspeed
Speed has exceeded the
instantaneous permissible speed.
Fault in the encoder.
Output U, V, W phases of the servo
amplifier were connected with each
other.
Transistor of the servo amplifier
damaged.
Short circuit in the servo amplifier
output U, V, W phases.
2032 32 Overcurrent
Current that flew is higher than the
permissible current of the servo
amplifier.
Noise entered the overcurrent
detection circuit.
Lead of built-in regenerative brake
resistor or regenerative brake option
is open or disconnected.
Though the regenerative brake
option is used, the DRU parameter
"
Pr.102
Regenerative brake
resistor" setting value is "0

00 (not
used)".
Regenerative brake option is open
or disconnected.
Regenerative transistor faulty.
Wire breakage of built-in
regenerative brake resistor or
regenerative brake option.
Capacity of built-in regenerative
brake resistor or regenerative brake
option is insufficient.
2033 33 Overvoltage
Converter bus voltage exceeded
400VDC.
Power supply voltage high.
The SSCNET cable is
disconnected.
Bus cable fault.
Noise has entered the bus cable.
The terminal connector is
disconnected.
Servo
amplifier
errors
2034 34 CRC error SSCNET cable communication fault
The same No. exists in the servo
amplifier side axis setting.

Mitsubishi QD75M4 Specifications

General

Brand	Mitsubishi
Model	QD75M4
Category	Controller
Language	English