Mitsubishi Electric QD75MH1 User Manual page 733

15 TROUBLESHOOTING
LED
Classifica
Error indicator
tion of
code of servo
errors
amplifier
2035 35
2036 36
2037 37
Servo
amplifier
errors
2045 45
2046 46
2047 47
Error name
Command Input pulse frequency of command
frequency error pulse is too high.
Receive error 2 SSCNET
Parameter error Parameter setting is wrong.
Main circuit
device over Main circuit device overheat
heated
Servomotor Servomotor temperature rise
overheate actuated the thermal protector.
The cooling fan of the servo amplifier
Cooling fan
stopped, or its speed decreased to or
alarm
below the alarm level.
Description
communication error
15 - 44
MELSEC-Q
Cause
Command given is greater than the
maximum speed of the servomotor.
Noise has entered the SSCNET
cable.
Fault in the QD75MH.
The SSCNET cable is
disconnected.
The surface at the end of SSCNET
cable got dirty.
The SSCNET cable is broken or
severed.
Noise entered the servo amplifier.
Servo amplifier fault caused the
parameter setting to be rewritten.
Parameter data mis-setting by
QD75MH.
The number of write times to EEP-
ROM exceeded 100,000 due to
parameter write, etc.
Servo amplifier faulty.
The power supply was turned on
and off continuously by overloaded
status.
Ambient temperature of servo
amplifier is over 55°C.
Used beyond the specifications of
close mounting.
Servomotor ambient temperature
exceeded the operating value of
40°C.
Servomotor overloaded.
Thermal protector in encoder is
faulty.
Cooling fan life expiration.
Foreign matter caught in the fan
stopped rotation.
The power supply of the cooling
fan failed.