Omron R88D-KN ML2 Sries - Page 439

11-20
11-4 Troubleshooting
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
11
Error and Maintenance
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 CXDrive.
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
MECHATROLINK-II communications
were established during execution of
FFT that operates with the Servo Drive
alone or a trial run.
Check to see if MECHATROLINK-II
communications are established
during execution of FFT or a trial run.
29
1
Internal error Counter
Overflow 1
The value that is obtained by dividing
the absolute encoder position (in
pulses) by the electronic gear ratio
exceeded 2
31
(2,147,483,648)
during the initialization of position
data, after the control power was
turned ON in absolute value mode,
after a Config operation, after FFT was
executed, or after a trial run was
executed.
Review the operation range of the
absolute external encoder position
and the electronic gear ratio.
2
Internal error Counter
Overflow 2
The position error in pulses exceeded
2
29
(536,870,912). Alternatively, the
position error in command units
exceeded 2
30
(1,073,741,824).
• Check to see if the Servomotor
rotates according to the position
command.
• Check on the torque monitor to see
if the output torque is saturated.
• Adjust the gain.
• Set the No. 1 Torque Limit (Pn013)
and No. 2 Torque Limit (Pn522) to
the maximum value.
• Wire the encoder as shown in the
wiring diagram.
3
Internal error Counter
Overflow 3
The value that is obtained by
multiplying the Final Distance for
Origin Return (Pn825) by the
electronic gear ratio exceeded
2
31
(2,147,483,648).
Review the Final Distance for Origin
Return (Pn825) and electronic gear
ratio.
30
(st)
0 Safety input error
At least one of the input photocouplers
for safety inputs 1 and 2 turned OFF.
Check the input wiring of safety inputs
1 and 2.
Alarm
number
Name Cause Measures
Main Sub
ABS
ABS