Omron OMNUC G5 R88M-K series User Manual page 411

Alarm
Error conditions
number
21 Encoder
communications error
23 Encoder
communications data
error
24 Error counter overflow
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
Status when error
occurs
Occurs during operation.
• The encoder is
• Connector contacts
• The encoder is wired
• The encoder is
• The drive is faulty.
• The motor is
Occurs when the power
• The encoder signal line
supply is turned ON.
Or, occurs during
• Noise on the encoder
operation.
• The encoder power
Occurs when the motor
• The motor power line
does not rotate even when
command pulses are
input.
• The motor is
• Control PCB error
Occurs during high-speed
• The motor power line
rotation.
Occurs when a long string
• Gain adjustment is
of command pulses is
given.
• The acceleration/
• The load is too large.
Occurs during operation.
• The set value for the
11-4 Troubleshooting
Cause
• Fix the locations that
disconnected. are disconnected.
• Wire correctly.
are faulty.
• Wire correctly.
incorrectly.
• Replace the motor.
damaged.
• Replace the Servo Drive.
• If the motor shaft is
mechanically held. held, release it.
• Wire correctly.
is wired incorrectly.
• Take measures
wiring causes incorrect against noise on the
operation. encoder wiring.
• Provide the required
supply voltage has encoder power supply
voltage (5 VDC  5%).
dropped (especially
when the cable is
long.)
• Wire correctly.
or the encoder wiring is
incorrect.
• If the motor shaft is
mechanically held. held, release it.
• Release the
electromagnetic brake.
• Replace the Servo Drive.
• Wire correctly.
or the encoder wiring is
incorrect.
• Adjust the gain.
insufficient.
• Extend the
deceleration is too acceleration/
rapid. deceleration times.
• Reduce the load.
• Select a suitable
motor.
• Increase the set value
Error Counter Overflow of Pn014.
Level (Pn014) is • Reduce the rotation
exceeded. speed.
• Reduce the load.
• Extend the
acceleration/
deceleration times.
Measures
11
11-18