Omron OMNUC G5 Series User Manual

12-17
12-4 Troubleshooting
OMNUC G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
12
Troubleshooting and Maintenance
21
0
Encoder
Communica-
tions Discon-
nection Error
A disconnection was detected because
communications between the encoder
and the Servo Drive were stopped more
frequently than the specified value.
Wire the encoder correctly as shown in the
wiring diagram. Correct the connector pin
connections.
1
Encoder
Communica-
tions Error
There was a communications error in data
from the encoder. There was a data error
mainly due to noise. The encode cable is
connected, but a communications data
error occurred.
• Provide the required encoder power
supply voltage 5 VDC ±5% (4.75 to 5.25
V). Be careful especially when the
encode cable is long.
• If the Servomotor cable and the
encoder cable are bundled together,
separate them.
• Connect the shield to FG.
23 0
Encoder
Communica-
tions Data
Error
No communications error occurred with
the data from the encoder, but there is an
error in the contents of the data. There
was a data error mainly due to noise. The
encode cable is connected, but a
communications data error occurred.
• Provide the required encoder power
supply voltage 5 VDC ±5% (4.75 to 5.25
V). Be careful especially when the
encode cable is long.
• If the Servomotor cable and the
encoder cable are bundled together,
separate them.
• Connect the shield to FG.
24 0
Error Counter
Overflow
Position error pulses exceeded the setting
of the Following error window (6065 hex).
• Motor operation does not follow the
command.
• The value of the Following error window
(6065 hex) is small.
• Check to see if the Servomotor rotates
according to the position command
pulse. Check on the torque monitor to
see if the output torque is saturated.
Adjust the gain. Maximize the set values
on the Positive torque limit value (60E0
hex) and the Negative torque limit value
(60E1 hex). Wire the encoder as shown
in the wiring diagram. Lengthen the
acceleration and deceleration times.
Reduce the load and the speed.
• Increase the set value of object 6065
hex.
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).
Error No. (hex)
Name Cause Measures
Main Sub

Omron OMNUC G5 Series Specifications

General

Brand	Omron
Model	OMNUC G5 Series
Category	Servo Drives
Language	English