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6. TROUBLESHOOTING
6 - 4
Display Name Definition Cause Action
30 Regenerative
error
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
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
Servo control error
occurred.
1. Initial magnetic pole detection has
not been performed.
Perform initial magnetic pole detection.
2. The position deviation exceeded the
detection level.
Check the operation condition.
Check the setting of parameter No.PS05
(Servo control position deviation error
detection level) as required.
3. The speed deviation exceeded the
detection level.
Check the operation condition.
Check the setting of parameter No.PS06
(Servo control speed deviation error
detection level) as required.
4. Torque deviation exceeded the
detection level.
Check the operation condition.
Check the parameter No.PS07 setting
(Servo control torque deviation error
detection level) as necessary.
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).
Connect correctly.
45 Main circuit
device overheat
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
46 1. Ambient temperature of direct drive
motor is over 40
(104 ).
Check environment so that ambient
temperature is 0 to 40 (32 to 104 ).
Direct drive
motor overheat
Direct drive motor
temperature rose.
(Detected by
thermistor)
2. Direct drive motor is overloaded. 1. Reduce load.
2. Check operation pattern.
3. Replace direct drive motor that provides
larger output.
3. Thermistor in direct drive motor is
faulty.
Replace the direct drive motor.
4. Thermistor wire faulty.
(Breakage or short-circuit)
Repair or replace the encoder cable.
47 Cooling fan
alarm
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.