Omron R88M-K - Page 529

12-19
12 Troubleshooting and Maintenance
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
12-4 Troubleshooting
12
12-4-1 Troubleshooting with Error Displays
25 0 Excessive
Hybrid
Deviation
Error
During fully-closed control, the difference
between the load position from the external
encoder and the Servomotor position from
the encoder was larger than the number of
pulses set as the Hybrid Following Error
Counter Overflow Level (3328 hex).
• Check the Servomotor and load
connection.
• Check the external encoder and Servo
Drive connection.
• When moving the load, check to see if the
change in the Servomotor position
(encoder feedback value) has the same
sign as the change in the load position
(external encoder feedback value).
Check to see if the External Feedback
Pulse Dividing Numerator and
Denominator (3324 hex and 3325 hex),
and External Feedback Pulse Direction
Switching (3326 hex) are set correctly.
26 0 Overspeed The Servomotor rotation speed exceeded
the value set on the Overspeed Detection
Level Setting (3513 hex).
• Do not give excessive speed commands.
• Check the input frequency, dividing ratio,
and multiplication ratio of the command
pulse.
• If overshooting occurred due to faulty gain
adjustment, adjust the gain.
• Wire the encoder as shown in the wiring
diagram.
1 Overspeed 2 The Servomotor rotation speed exceeded
the value set for the Overspeed Detection
Level Setting at Immediate Stop (3615 hex).
27 1 Absolute
Value
Cleared
The multi-rotation counter for the absolute
encoder was cleared during USB
communications by the CX-Drive.
• Check to see if the multi-rotation counter
for the absolute encoder was cleared
during USB communications by the CX-
Drive.
Note This operation is performed for safety
and is not an error.
4 Command
Error
The position command variation after the
electronic gear is higher than the specified
value.
• Check to see if the position command
variation is large.
• Check the electronic gear ratio.
• Check to see if the backlash compensation
amount is too large.
5 Command
Generation
Error
During position command processing, an
error such as an “over the calculation range”
error occurred.
Check to see if the electronic gear ratio, and
the acceleration and deceleration rates meet
the restrictions.
6 Operation
Command
Duplicated
An attempt was made to establish EtherCAT
communications (change from Init to Pre-
Operational state) or to turn ON the servo
from the controller (enable operation) while
executing an FFT that operates with the
Servo Drive alone or a trial run.
Check to see if EtherCAT communications is
established or the servo is turned ON
(enable operation) while an FFT or a trial run
was being conducted.
7 Position Data
Initialized
A Config operation was performed or the
multi-rotation counter was cleared for the
absolute encoder during EtherCAT
communications.
Check to see if Config operation was
performed or the multi-rotation counter was
cleared for the absolute encoder during
EtherCAT communications.
Note: This operation is performed for safety
and is not an error.
Error No. (hex)
Name Cause Measures
Main Sub
ABS