Omron SMARTSTEP 2 R88M-G Series User Manual page 307

Alarm
Error
code
27 Electronic gear
setting error
29 Deviation counter
overflow
34 Overrun limit error
36 Parameter error
37 Parameter corruption
38 Drive prohibit input
error
44 Encoder counter er-
ror 1
45 Encoder counter er-
ror 2
48 Encoder phase Z
error
49 Encoder CS signal
error
Status when error
occurs
Occurs when com- • The setting for the Elec-
mand pulses are given. tronic Gear Ratio Numer-
ator (Pn46 or Pn47) is not
appropriate.
Occurs when the Ser- • The Servomotor power
vomotor does not ro- wiring or the encoder wir-
tate even if command ing is incorrect.
pulses are input.
• The Servomotor is me-
chanically being held.
• Control PCB error
• The Servomotor power
Occurs during high-
speed rotation. wiring or the encoder wir-
ing is incorrect.
Occurs when long com- • Gain adjustment is insuf-
mand pulses are given. ficient.
• The acceleration and de-
celeration are too rapid.
• The load is too large.
• The Overrun Limit Set-
Occurs during opera-
tion. ting (Pn26) is exceeded
during operation.
Occurs when the power • There are errors in the
supply is turned ON. parameters that were
read.
• The Servo Drive is faulty.
Occurs when the power • The parameters that
supply is turned ON. were read are corrupt.
Occurs when the Servo • The Forward Drive Pro-
is turned ON or during hibit Input (POT) and Re-
operation. verse Drive Prohibit Input
(NOT) were both OFF at
the same time.
Occurs during opera- • The encoder detected an
tion. error in the counter.
• The encoder detected an
Occurs during opera-
tion. error in the counter.
Occurs during opera- • A phase-Z pulse from the
tion. encoder was not detect-
ed regularly.
• A logic error of the CS
Occurs during opera-
tion. signal from the encoder
was detected.
8-3 Troubleshooting
Cause Countermeasure
• Set Pn46 and Pn47 so
that the command pulse
frequency is 500 kpps
max.
• Correct the wiring.
• If the Servomotor shaft is
held by external force, re-
lease it.
• Release the electromag-
netic brake.
• Replace the Servo Drive.
• Correct the wiring.
• Adjust the gain.
• Extend the acceleration
and deceleration times.
• Reduce the load.
• Select a suitable Servo-
motor.
• Adjust the gain.
• Increase the setting for
Pn26.
• Set Pn26 to 0 to disable
the function.
• Reset all parameters.
• Replace the Servo Drive.
• Replace the Servo Drive.
• Correct the wiring.
• Replace the limit sensor.
• Check whether the pow-
er supply for control is in-
put correctly.
• Check whether the set-
ting for Drive Prohibit In-
put Selection (Pn04) is
correct.
• Replace the Servomotor.
• Replace the Servomotor.
• Replace the Servomotor.
• Replace the Servomotor.
8
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