Omron R88D-1SN10F-ECT User Manual page 630

12 Troubleshooting
Error No.
Name
Main Sub
(hex) (hex)
A0 00 Overload
Warning
A1 00 Regenera-
tion Over-
load Warning
12 - 30
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User's Manual (I586)
Cause
The load ratio of Servo Operation was contin-
Drive or motor (4150-81 ued for a long time with
hex) exceeded the level high load.
set in the Overload -
Warning Notification
Level.
There is incorrect wir-
ing of the motor cable or
a broken cable.
Increase in friction
The Regeneration Load The regeneration pro-
Ratio (4310-81 hex) cessing is set inappro-
exceeded 85% of the priately.
regeneration overload
ratio.
The Regeneration
Resistor is selected
inappropriately.
This Regeneration
Resistor is used for con-
tinuous regenerative
braking.
The applied power sup-
ply voltage is higher
than the specified value.
Regeneration Resistor
failure
Measures
Perform the following corrections
accordingly.
• Increase the set value of the
acceleration/deceleration time or
the stop time.
• Lighten the load.
• Adjust the gain and inertia ratio.
• If torque waveforms oscillate
excessively, adjust the system by
the tuning so that the oscillation
does not occur.
• Set the appropriate brake timing.
• Increase the capacities of the
Servo Drive and the motor.
• Connect the motor cable as
shown in the wiring diagram. If
the cable is broken, replace it. Or,
connect the motor cable and
encoder cable that are used
together to the same motor.
• Measure the voltage at the brake
terminal. If the brake is applied,
release it.
Check machine conditions and
remove the cause of the friction.
Check the regeneration processing
setting, and set the same value as
the resistance value of the Regen-
eration Resistor in use.
Check the operation pattern by the
velocity monitor. Check the load
ratio of Regeneration Resistor, and
perform the following corrections
accordingly.
• Increase the deceleration time
and stopping time.
• Decrease the command velocity
to the motor.
• Use an External Regeneration
Resistor.
• Increase the capacities of the
Servo Drive and the motor.
The Regeneration Resistor cannot
be used for continuous regenera-
tive braking.
Apply the specified power supply
voltage.
Check whether the Regeneration
Resistor is faulty, and use one with-
out failures.