Omron SMARTSTEP 2 SERIES User Manual page 301

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
• The setting for the Elec-
Occurs when com-
mand pulses are given. tronic Gear Ratio Numer-
ator (Pn46 or Pn47) is not
appropriate.
• The Servomotor power
Occurs when the Ser-
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.
• Gain adjustment is insuf-
Occurs when long com-
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.
• There are errors in the
Occurs when the power
supply is turned ON. parameters that were
read.
• The Servo Drive is faulty.
• The parameters that
Occurs when the power
supply is turned ON. were read are corrupt.
• The Forward Drive Pro-
Occurs when the Servo
is turned ON or during hibit Input (POT) and Re-
operation. verse Drive Prohibit Input
(NOT) were both OFF at
the same time.
• The encoder detected an
Occurs during opera-
tion. error in the counter.
• The encoder detected an
Occurs during opera-
tion. error in the counter.
• A phase-Z pulse from the
Occurs during opera-
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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