Mitsubishi Electronics QD75MH2 ユーザーズマニュアル
15 - 48
MELSEC-Q
15 TROUBLESHOOTING
Classifica
tion of
errors
Error
code
code
LED
indicator
of servo
amplifier
Error name
Description
Cause
Acceleration/deceleration time
constant too small.
constant too small.
Torque limit value too small.
Start disabled due to insufficient
torque caused drop in power supply
voltage.
torque caused drop in power supply
voltage.
The setting value for " Pr.125
Model loop gain" too small.
Servomotor shaft was rotated by
external force.
external force.
Collision with the machine.
The motor encoder fault.
Servomotor miswiring servo
amplifier terminals U, V, W phase
don’t mach motor terminals U, V, W
phase.
amplifier terminals U, V, W phase
don’t mach motor terminals U, V, W
phase.
2052 52 Error
excessive
The deviation between the model
position and the actual servomotor
position exceeds "
position and the actual servomotor
position exceeds "
Pr.164
"setting
value (initial value: 3 revolutions).
SSCNET cable fault.
2060 1A
Motor
combination
error
combination
error
Wrong combination of the servo
amplifier and servomotor.
amplifier and servomotor.
Wrong combination of the servo
amplifier and servomotor
connected.
amplifier and servomotor
connected.
Servo
amplifier
errors
2088
888
Watchdog
CPU, parts faulty
Fault of parts in servo amplifier.