Omron OMNUC G5 User Manual page 499

Alarm
Error conditions
display
Encoder
21
communications error
Encoder
23 communications data
error
24 Error counter overflow
Excessive hybrid
25
deviation error
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
Status when error
occurs
• The encoder is
• Connector contacts
• The encoder is wired
Occurs during operation.
• The encoder is damaged. • Replace the motor.
• The driver is faulty.
• The motor is
• The encoder signal line
Occurs when the power • Noise on the encoder wiring
supply is turned ON.
Or, occurs during
• The encoder power
operation.
• The motor power line or the
Occurs when the motor
does not rotate even when
• The motor is
command pulses are
input.
• Control PCB error
• The motor power line
Occurs during high-speed
rotation.
• Gain adjustment is
Occurs when a long string
• The acceleration/
of command pulses is
given.
• The load is too large.
• The set value for the
Occurs during operation.
• There is deviation
Occurs for full closing
control.
11-4 Troubleshooting
Cause
• Fix the locations that
disconnected.
are disconnected.
• Wire correctly.
are faulty.
• Wire correctly.
incorrectly.
• Replace the driver.
• If the motor shaft is
mechanically held. held, release it.
• Wire correctly.
is wired incorrectly.
• Take measures against
causes incorrect operation. noise on the encoder wiring.
• Provide the required
supply voltage has
encoder power supply
dropped (especially
voltage (5 VDC ± 5%).
when the cable is long.)
• Wire correctly.
encoder wiring is incorrect.
• If the motor shaft is
held, release it.
mechanically held. • Release the
electromagnetic brake.
• Replace the driver.
or the encoder wiring is • Wire correctly.
incorrect.
• Adjust the gain.
insufficient.
• Extend the acceleration/
deceleration is too rapid. deceleration times.
• Reduce the load.
• Select a suitable motor.
• Increase the set value
of Pn014.
Error Counter Overflow • Reduce the rotation speed.
Level (Pn014) is • Reduce the load.
exceeded. • Extend the acceleration/
deceleration times.
• Check the motor and
between the load load connection.
position according to • Check the external scale
the external scale and and driver connection.
the motor position • Check the external scale
according to the load position and encoder
encoder. motor position settings.
Measures
11
11-12