Omron ACCURAX G5 - Page 499

11-13
11-4 Troubleshooting
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
11
Error and Maintenance
15 Driver overheat Occurs during operation.
· The ambient
temperature is too
high.
· The load is too large.
· Lower the ambient
temperature.
· Increase the capacity
of the driver and motor.
· Reduce the load.
·
Extend the acceleration/
deceleration times.
16 Overload
Occurs when the servo is
turned ON.
·
There is an error in the
motor wiring (the wiring or
the connections are faulty).
· Wire the motor power
cable correctly.
· The electromagnetic
brake is ON.
· Turn OFF the brake.
·
The Servo Drive is faulty. · Replace the driver.
Occurs during operation.
·
The effective torque
exceeds the rated torque.
· The initial torque exceeds
the maximum torque.
· Review the load conditions
and operating conditions.
· Review the motor
capacity.
· Unusual noise or
vibration is caused by
faulty gain adjustment.
· Adjust the gain
correctly.
·
The Servo Drive is faulty. · Replace the driver.
18 Regeneration overload
Occurs when the motor is
decelerating.
· Load inertia is too
large.
·
Calculate the regenerative
energy and connect an
External Regeneration Resistor
with the required regeneration
absorption capacity.
· Extend the deceleration time.
· The deceleration time
is too short.
· The motor rotation
speed is too high.
· Reduce the motor
rotation speed.
·
Extend the deceleration time.
· Calculate the regenerative
energy and connect an
External Regeneration
Resistor with the required
regeneration absorption
capacity.
· The operating limit of the
External Regeneration
Resistor is limited to 10% duty.
· Set Pn016 to 2.
For details, refer to
"Parameters Details".
Occurs during descent
(vertical axis).
· Gravitational torque is
too large.
· Add a counterbalance
to the machine to lower
gravitational torque.
·
Reduce the descent speed.
· Calculate the regenerative
energy and connect an
External Regeneration
Resistor with the required
regeneration absorption
capacity.
· The operating limit of the
External Regeneration
Resistor is limited to 10% duty.
· Set Pn016 to 2.
For details, refer to
"Parameters Details".
Alarm
display
Error conditions
Status when error
occurs
Cause Measures