Omron R88M-W60010T User Manual page 360

Troubleshooting
Display Error
Encoder communi-
a.c91
cations position
data error
Encoder communi-
a.c92
cations timer error
Encoder parame-
a.ca0
ter error
5-28
Status when
error occurs
Occurs when the • The encoder cable is
control circuit
crimped, and deteriora-
power supply is
tion of the insulation is
turned ON or dur-
allowing noise to affect
ing operation.
the signal line.
• The encoder cable is
bundled with, or close to,
lines carrying a large cur-
rent.
• The electric potential of
the FG is fluctuating due
to influence from machin-
ery (such as welders) in
the vicinity of the Servo-
motor.
Occurs when the • Noise is being carried to
control circuit
the line for signals com-
power supply is
ing from the encoder.
turned ON or dur-
• The encoder is sub-
ing operation.
jected to excessive vibra-
tion and shock.
• Encoder is defective.
• The Servo Driver board is
defective.
Occurs when the • Encoder is defective.
control circuit
• The Servo Driver board is
power supply is
defective.
turned ON.
Cause of error
• Correct the cable installa-
tion.
• Arrange the cable so that
the encoder cable is not
affected by surges.
• Ground the machinery to
prevent branching to the
encoder's FG.
• Implement measures
against noise in the
encoder wiring.
• Reduce machine vibra-
tion or securely mount
the Servomotor.
• Replace the Servomotor.
• Replace the Servo
Driver.
• Replace the Servomotor.
• Replace the Servo
Driver.
Chapter 5
Countermeasures