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TROUBLESHOOTING
D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
1-34 August 9, 2005
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ERROR CODE D1506 Power module error JtXX.
An error signal from the IPM module in the power block is detected by the 1KB board.
1KB board
IPM error signal
Power block
Gate Array
Servo
CPU
Interface
CPU
PWM signal
Controller
HIC
IPM
Motor
Robot
Main causes include:
1. U, V, and W phase short-circuited or short-circuited to ground wire.
2. Payload weight exceeds rating.
3. Defective cooling fan in the power block.
4. Ambient temperature above normal operating limits.
5. Constant execution of abrupt high speed direction changes.
6. Defective 1KB board.
7. Disconnected or defective harness between the 1KB board and the power block.
8. Disconnection or poor connection in the thermal line at the separate harness and/or
controller harness.
9. Defective thermal switch in the controller or servo motors (if used).
10. Defective power block.
⇒
Check and repair cause of U, V, and W phase short-circuited or short-circuited to
ground wire.
⇒
Ensure payload does not exceed rating.
⇒
Reduce ambient temperature.
⇒
Ensure cooling fans are in proper working condition.
⇒
Correct abrupt high speed direction changes in the robot program.
⇒
Replace the 1KB board.
⇒
Repair or replace the harness between the 1KB board and the power block.
⇒
Check the thermal line in the separate harness and controller harness, and repair or
replace as necessary.
⇒
Replace the power block.
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