TROUBLESHOOTING
D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
1-74 August 9, 2005
Kaaaw sk
ERROR CODE E1029 Encoder rotation data is abnormal. (Jt XX)
Occurs when there is a difference (+2 rotations or more) between the rotation data in
the serial encoder data and the rotation data calculated using the incremental tech-
nique.
Power
circuit Battery
EncoderEncoder
1FG/1HG board
Robot
Controller
1KB board
Encoder I/F
Servo
CPU
Encoder +12VDC power supply
Check connections at encoder, 1FG/1HG board, and separation harness.
Check for noise and shield integrity.
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.
Replace the 1KB board.
Replace the encoder.
For additional information on error code E1029, see section 1.4.
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