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5.3 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.050:
Combination
Error
(The capacities of
the SERVOPACK
and Servomotor
do not match.)
A.051:
Unsupported
Device Alarm
A.070:
Motor Type
Change Detected
(The connected
motor is a differ-
ent type of motor
from the previ-
ously connected
motor.)
A.080:
Linear Encoder
Pitch Setting
Error
A.0b0:
Invalid Servo ON
Command Alarm
A.100:
Overcurrent
Detected
(An overcurrent
flowed through
the power tran-
sistor or the heat
sink overheated.)
5-10
Possible Cause
Check the capacities to
see if they satisfy the fol-
The SERVOPACK and
lowing condition:
Servomotor capaci-
ties do not match
1/4
each other.
Replace the encoder and
A failure occurred in
check to see if the alarm
the encoder.
still occurs.
A failure occurred in
–
the SERVOPACK.
The motor parameter
file was not written to
Check to see if the motor
the linear encoder.
parameter file was written
(This applies only
to the linear encoder.
when not using a
Serial Converter Unit.)
An unsupported Serial
Converter Unit or
encoder (e.g., an
Check the product com-
external encoder) is
bination specifications.
connected to the
SERVOPACK.
A Rotary Servomotor
was removed and a
–
Linear Servomotor
was connected.
A Linear Servomotor
was removed and a
–
Rotary Servomotor
was connected.
The setting of Pn282
(Linear Encoder Scale
Check the setting of
Pitch) has not been
Pn282.
changed from the
default setting.
The SV_ON (Servo
ON) command was
sent from the host
controller after a util-
–
ity function that turns
ON the Servomotor
was executed.
The Main Circuit
Cable is not wired
Check the wiring.
correctly or there is
faulty contact.
Confirmation
Select a proper combina-
tion of the SERVOPACK
and Servomotor capaci-
Servomotor capacity
≤
≤
4
ties.
SERVOPACK capacity
Replace the Servomotor
or encoder.
The SERVOPACK may be
faulty. Replace the SER-
VOPACK.
Write the motor parame-
ter file to the linear
encoder.
Change to a correct com-
bination of models.
Set the parameters for a
Linear Servomotor and
reset the motor type
alarm. Then, turn the
power supply to the SER-
VOPACK OFF and ON
again.
Set the parameters for a
Rotary Servomotor and
reset the motor type
alarm. Then, turn the
power supply to the SER-
VOPACK OFF and ON
again.
Correct the setting of
Pn282.
Turn the power supply to
the SERVOPACK OFF and
ON again. Or, execute a
software reset.
Correct the wiring.
Continued from previous page.
Refer-
Correction
ence
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Continued on next page.
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Table of Contents
Troubleshooting
