Mitsubishi Electric MELSERVO-J3 Series Instruction Manual page 105

6. TROUBLESHOOTING
Display Name
30 Regenerative
error
31 Overspeed
32 Overcurrent
33 Overvoltage
34 Receive error 1
35 Command
frequency alarm
36 Receive error 2
37 Parameter error
42 Servo control
error
45 Main circuit
device overheat
46 Direct drive
motor overheat
47 Cooling fan
alarm
Definition
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
Servo control error 1. Initial magnetic pole detection has
occurred. not been performed.
2. The position deviation exceeded the
detection level.
3. The speed deviation exceeded the
detection level.
4. Torque deviation exceeded the
detection level.
5. Wrong connection of direct drive
motor.
Servo amplifier's power supply
output (U, V, and W) do not match
with direct drive motor's power
supply input (U, V, and W).
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
Direct drive motor 1. Ambient temperature of direct drive
temperature rose. motor is over 40
(Detected by
2. Direct drive motor is overloaded.
thermistor)
3. Thermistor in direct drive motor is
faulty.
4. Thermistor wire faulty.
(Breakage or short-circuit)
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
Cause
Perform initial magnetic pole detection.
Check the operation condition.
Check the setting of parameter No.PS05
(Servo control position deviation error
detection level) as required.
Check the operation condition.
Check the setting of parameter No.PS06
(Servo control speed deviation error
detection level) as required.
Check the operation condition.
Check the parameter No.PS07 setting
(Servo control torque deviation error
detection level) as necessary.
Connect correctly.
Check environment so that ambient
(104 ). temperature is 0 to 40
1. Reduce load.
2. Check operation pattern.
3. Replace direct drive motor that provides
Replace the direct drive motor.
Repair or replace the encoder cable.
6 - 4
Action
(32 to 104 ).
larger output.