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10 Troubleshooting and Maintenance
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
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Error Diagnosis with Alar
m Displa
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21
0
Encoder
Communications
Disconnection 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
Communications 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 VDC). Be careful especially when
the encode cable is long.
• If the Servomotor cable and the
encoder cable are bundled together,
separate them.
• Connect the encoder cable correctly.
23
0
Encoder
Communications Data
Error
No communications error occurred with
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 VDC). Be careful especially when
the encode cable is long.
• If the Servomotor cable and the
encoder cable are bundled together,
separate them.
• Connect the encoder cable correctly.
24
0
Error Counter
Overflow
Position error pulses exceeded the value
set in Error Counter Overflow Level
(Pn014).
• Motor operation does not follow the
command.
• The value set in Error Counter
Overflow Level (Pn014) is small.
• Check to see if the Servomotor rotates
according to the position command
pulses. Check with the torque monitor
to see if the output torque is saturated.
Adjust the gain. Maximize the values
set in No.1 Torque Limit value (Pn013)
and No.2 Torque Limit value (Pn522).
Connect the encoder cable correctly.
Lengthen the acceleration and
deceleration times. Reduce the load
and the speed.
• Increase the value set in Error Counter
Overflow Level (Pn014).
1
Excessive Speed
Error
*3
The difference between the Internal
Position Command Speed and the motor
speed (speed deviation) exceeded the
value set in Excessive Speed Error
Setting (Pn602).
• Increase the value set in Excessive
Speed Error Setting (Pn602).
• Lengthen the acceleration and
deceleration times for the Internal
Position Command Speed. Or adjust
the gain to improve the speed-
following performance.
• Disable Excessive Speed Error Setting
(Pn602 = 0).
26
0
Overspeed
The Servomotor rotation speed
exceeded the value set in Overspeed
Detection Level Setting (Pn513).
• Do not give excessive speed
commands.
• Check the input frequency, dividing
ratio, and multiplication ratio of the
command pulses.
• If overshooting occurred due to faulty
gain adjustment, adjust the gain.
• Connect the encoder cable correctly.
1
Overspeed 2
The Servomotor rotation speed
exceeded the value set in Overspeed
Detection Level Setting at Emergency
Stop (Pn615).
Alarm No.
Name
Cause
Measures
Main
Sub
Содержание G5 R88D-KE Series
Страница 3: ...2 Page 2 53 For 1 000 r min Servomotors 900 W to 3 kW Current Contents Corrected Contents...
Страница 22: ...Manual Structure 18 OMNUC G5 series Pulse train Input Type AC Servomotors and Servo Drives User s Manual...
Страница 334: ...6 Applied Functions 6 52 OMNUC G5 series Pulse train Input Type AC Servomotors and Servo Drives User s Manual...
Страница 396: ...7 Parameter Details 7 62 OMNUC G5 series Pulse train Input Type AC Servomotors and Servo Drives User s Manual...
Страница 426: ...8 Operation 8 30 OMNUC G5 series Pulse train Input Type AC Servomotors and Servo Drives User s Manual...
Страница 498: ...Appendices A 32 OMNUC G5 series Pulse train Input Type AC Servomotors and Servo Drives User s Manual...
Страница 499: ...Index 1 I OMNUC G5 series Pulse train Input Type AC Servomotors and Servo Drives User s Manual Index...
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