Mitsubishi QD75M1 User Manual

15 - 72
MELSEC-Q
15 TROUBLESHOOTING
Classifica
tion of
errors
Error
code
LED
indicator
of servo
amplifier
Error name Description Cause
The current exceeded the
continuous output current of the
servo amplifier.
The servo system is unstable,
causing hunting.
Collision with the machine.
Servo motor miswiring servo
amplifier terminals U, V, W phase
do not mach motor terminals U, V,
W phase.
2050 50 Overload 1
Load exceeded overload protection
characteristic of servo amplifier.
Load ratio 200%: 85s or more
The motor encoder fault.
Collision with the machine
Servo motor miswiring servo
amplifier terminals U, V, W phase
do not mach motor terminals U, V,
W phase.
The servo system is unstable,
causing hunting.
The bus voltage of the unit has
decreased.
2051 51 Overload 2
Machine collision or the like caused
max. output current to flow
successively for several seconds.
Servomotor locked: 1s
Encoder faulty.
Servo
amplifier
errors
2052 52 Error excessive
Droop pulse of the deviation counter
reached or exceeded setting value of
the parameter "
Pr.131
".
Acceleration/deceleration time
constant too small.

Mitsubishi QD75M1 Specifications

General

Brand	Mitsubishi
Model	QD75M1
Category	Controller
Language	English