Mitsubishi Electric MELSEC-Q QD75M User Manual page 703

15 TROUBLESHOOTING
LED
Classif-
Error indicator
cation of
code of servo
errors
amplifier
2035 35
2036 36
2037 37
2042 42
2045 45
Servo
amplifier
errors
2046 46
2050 50
Error name
Command pulse
Input frequency of too high.
frequency error
SSCNET cable or printed board is
Transfer error
faulty.
Parameter error Parameter setting is wrong.
The motor encoder signal is
Feedback error
abnormal.
Main circuit
device over Main circuit device overheat
heated
Servomotor Servo motor temperature rise
heated actuated the thermal protector.
Load exceeded overload protection
characteristic of servo amplifier.
Overload 1
Load ratio 300%: 2.5s or more
Load ratio 200%: 100s or more
Description
15 - 40
MELSEC-Q
Cause
Command given is greater than the
maximum speed of the servomotor.
Noise has entered the SSCNET
cable.
Fault in the QD75M.
The SSCNET cable is
disconnected.
The SSCNET cable fault.
Printed circuit board (H-C10) fault.
The terminal connector is
disconnected.
Servo amplifier fault caused the
parameter setting to be rewritten.
Parameter data mis-setting by
QD75M.
The motor encoder fault.
Air cooling fan of servo amplifier
stops.
The power supply was turned on
and off continuously by overloaded
status.
Servo amplifier abnormal.
Servo motor ambient temperature
exceeded the operating value of
40°C.
Servomotor overloaded.
Thermal protector in encoder is
faulty.
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.