8-10
8-3 Troubleshooting
8
Troubleshooting
27
Electronic gear
setting error
Occurs when com-
mand pulses are given.
•
The setting for the Elec-
tronic Gear Ratio Numer-
ator (Pn46 or Pn47) is not
appropriate.
•
Set Pn46 and Pn47 so
that the command pulse
frequency is 500 kpps
max.
29
Deviation counter
overflow
Occurs when the Ser-
vomotor does not ro-
tate even if command
pulses are input.
•
The Servomotor power
wiring or the encoder wir-
ing is incorrect.
•
Correct the wiring.
•
The Servomotor is me-
chanically being held.
•
If the Servomotor shaft is
held by external force, re-
lease it.
•
Release the electromag-
netic brake.
•
Control PCB error
•
Replace the Servo Drive.
Occurs during high-
speed rotation.
•
The Servomotor power
wiring or the encoder wir-
ing is incorrect.
•
Correct the wiring.
Occurs when long com-
mand pulses are given.
•
Gain adjustment is insuf-
ficient.
•
Adjust the gain.
•
The acceleration and de-
celeration are too rapid.
•
Extend the acceleration
and deceleration times.
•
The load is too large.
•
Reduce the load.
•
Select a suitable Servo-
motor.
34
Overrun limit error
Occurs during opera-
tion.
•
The Overrun Limit Set-
ting (Pn26) is exceeded
during operation.
•
Adjust the gain.
•
Increase the setting for
Pn26.
•
Set Pn26 to 0 to disable
the function.
36
Parameter error
Occurs when the power
supply is turned ON.
•
There are errors in the
parameters that were
read.
•
Reset all parameters.
•
The Servo Drive is faulty.
•
Replace the Servo Drive.
37
Parameter corruption
Occurs when the power
supply is turned ON.
•
The parameters that
were read are corrupt.
•
Replace the Servo Drive.
38
Drive prohibit input
error
Occurs when the Servo
is turned ON or during
operation.
•
The Forward Drive Pro-
hibit Input (POT) and Re-
verse Drive Prohibit Input
(NOT) were both OFF at
the same time.
•
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.
44
Encoder counter er-
ror 1
Occurs during opera-
tion.
•
The encoder detected an
error in the counter.
•
Replace the Servomotor.
45
Encoder counter er-
ror 2
Occurs during opera-
tion.
•
The encoder detected an
error in the counter.
•
Replace the Servomotor.
48
Encoder phase Z
error
Occurs during opera-
tion.
•
A phase-Z pulse from the
encoder was not detect-
ed regularly.
•
Replace the Servomotor.
49
Encoder CS signal
error
Occurs during opera-
tion.
•
A logic error of the CS
signal from the encoder
was detected.
•
Replace the Servomotor.
Alarm
code
Error
Status when error
occurs
Cause
Countermeasure
