TROUBLESHOOTING
1-81August 9, 2005
D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
Kaaaw sk
ERROR CODE E1038 Encoder ABS-track error. (Jt XX)
The absolute data and the incremental data in the encoder are different. ABSALM=1 is
output from the encoder when this error occurs.
Power
circuit Battery
EncoderEncoder
1FG/1HG board
Robot
Controller
1KB board
Encoder I/F
Servo
CPU
Encoder +12VDC power supply
Main causes include:
1. Noise related malfunction.
2. Defective encoder or encoder harness.
3. Defective 1KB or 1FG/1HG board.
4. Servo spot weld gun.
–Loose connection at tool changer.
–Defective tool changer harness.
Check for noise malfunction and shield integrity.
Replace encoder, replace 1KB board.
Check connections at encoder,
1FG/1HG board, and separation harness.
Ensure the 1KB board is properly seated into the card rack.
Check for continuity in the machine harness and separation harness.
Replace 1FG/1HG board.
Inspect the servo gun and tool changer harnesses; replace as necessary.
For additional information on error code E1038, see section 1.4.
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