Mitsubishi A1SD75M3 User Manual page 642

14 TROUBLESHOOTING
Servo
Error
amplifier
code
LED display
2036 36 Transfer error
2037 37 Parameter error Parameter setting error
Main circuit
2045 45
device overheat
Servomotor
2046 46
overheat
2050 50 Overload 1
2051 51 Overload 2
Name Definition
SSCNET cable or
printed board fault
Main circuit overheated
abnormally.
Servomotor temperature
rise actuated the thermal
protector.
Load exceeded overload
protection characteristic
of servo amplifier.
Load ratio 300%:
2.5s or more
Load ratio 200%:
100s or more
Machine collision or like
caused max. output
current to flow
successively for several
seconds.
Servomotor locked:
1s or more
1. SSCNET cable is disconnected.
2. SSCNET cable fault.
3. The terminal connector is disconnected.
1. Servo amplifier fault caused the parameter setting to be rewritten.
2. There is parameter set to outside setting range by AD75.
1. Servo amplifier faulty.
2. The power supply was turned ON and OFF continuously by
overloaded status.
3. Air cooling fan of servo amplifier stopped.
1. Ambient temperature of servomotor is over 40°C.
2. Servomotor is overloaded.
3. Thermal protector in encoder is faulty.
1. Servo amplifier is used in excess of its continuous output current.
2. Servo system is instable and hunting.
3. Machine struck something.
4. Wrong connection of servomotor.
Servo amplifier's output terminals U, V, W do not match
servomotor's input terminals U, V, W.
5. Encoder faulty.
1. Machine struck something.
2. Wrong connection of servomotor.
Servo amplifier's output terminals U, V, W do not match
servomotor's input terminals U, V, W.
3. Servo system is instable and hunting.
4. Encoder faulty.
14 - 54
MELSEC-A
Occurrence factor