Mitsubishi A1SD75M3 User Manual page 618

14 TROUBLESHOOTING
Servo
Error
amplifier
code
LED display
2034 34 CRC error
Command pulse
2035 35
frequency alarm
2036 36 Transfer error
2037 37 Parameter error Parameter setting error
2042 42 Feedback alarm Encoder signal is faulty.
Main circuit
2045 45
device overheat
Servomotor
2046 46
overheat
2050 50 Overload 1
Name Definition
SSCNET cable
communication error
Input command pulse is
too high.
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
1. SSCNET cable is disconnected.
2. SSCNET cable fault.
3. Noise entered the SSCNET cable.
4. The terminal connector is disconnected.
1. Command pulse frequency too high.
2. Noise entered the command pulse.
1. SSCNET cable is disconnected.
2. SSCNET cable fault.
3. Printed board H-C10 fault.
4. The terminal connector is disconnected.
1. Servo amplifier fault caused the parameter setting to be rewritten.
2. Mis-setting of servo amplifier parameter data
Encoder faulty.
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.
4. Air cooling fan of servomotor stopped.
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.
14 - 30
MELSEC-A
Occurrence factor