Yaskawa Σ-V Series AC Servo Drives Rotational Motor Analog Voltage Reference User Manual

Page 273

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9 Troubleshooting

9.1.2 Troubleshooting of Alarms

9-14

A.d02

*4

:

Position Error

Overflow Alarm by

Speed Limit at Servo

ON

When the position errors remain
in the error counter, Pn529 limits
the speed if the servomotor power
is ON. If Pn529 limits the speed

in such a state, this alarm occurs
when reference pulses are input
and the number of position errors

exceeds the value set for the
excessive position error alarm
level (Pn520).

Set position error to be cleared

while the servomotor power is OFF.
Or, correct the excessive position

error alarm level (Pn520).
Or, adjust the speed limit level at

servo ON (Pn529).

CPF00:
Digital Operator

Transmission Error 1

The contact between the digital
operator and the SERVOPACK is
faulty.

Check the connector contact.

Insert securely the connector or
replace the cable.

Malfunction caused by noise

interference.

Keep the digital operator or the
cable away from noise sources.

CPF01:
Digital Operator
Transmission Error 2

A digital operator fault occurred.

Disconnect the digital operator and

then re-connect it. If the alarm still
occurs, the digital operator may be
faulty. Replace the digital operator.

A SERVOPACK fault occurred.

Restart the SERVOPACK. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the

SERVOPACK.

∗4.

This alarm will occur only for a SERVOPACK for pulse train references.

(cont’d)

Alarm Number:

Alarm Name

(Alarm Description)

Cause

Investigative Actions

Corrective Actions

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