5.2 FT41 Specification
5.2.2 List of Alarms
5-61
5
Maintenance
A.bF6
System Alarm 6
Internal program error 6 occurred in the SERVO-
PACK.
Gr.1
No
A.bF7
System Alarm 7
Internal program error 7 occurred in the SERVO-
PACK.
Gr.1
No
A.bF8
System Alarm 8
Internal program error 8 occurred in the SERVO-
PACK.
Gr.1
No
A.C10
Servomotor Out of Control
The Servomotor ran out of control.
Gr.1
Yes
A.C20
Phase Detection Error
The detection of the phase is not correct.
Gr.1
No
A.C21
Polarity Sensor Error
An error occurred in the polarity sensor.
Gr.1
No
A.C22
Phase Information
Disagreement
The phase information does not match.
Gr.1
No
A.C50
Polarity Detection Failure
The polarity detection failed.
Gr.1
No
A.C51
Overtravel Detected during
Polarity Detection
The overtravel signal was detected during polarity
detection.
Gr.1
Yes
A.C52
Polarity Detection Not
Completed
The servo was turned ON before the polarity was
detected.
Gr.1
Yes
A.C53
Out of Range of Motion for
Polarity Detection
The travel distance exceeded the setting of
Pn48E (Polarity Detection Range).
Gr.1
No
A.C54
Polarity Detection Failure 2
The polarity detection failed.
Gr.1
No
A.C80
Encoder Clear Error or
Multiturn Limit Setting
Error
The multiturn data for the absolute encoder was
not correctly cleared or set.
Gr.1
No
A.C90
Encoder Communications
Error
Communications between the encoder and SER-
VOPACK is not possible.
Gr.1
No
A.C91
Encoder Communications
Position Data Acceleration
Rate Error
An error occurred in calculating the position data
of the encoder.
Gr.1
No
A.C92
Encoder Communications
Timer Error
An error occurred in the communications timer
between the encoder and SERVOPACK.
Gr.1
No
A.CA0
Encoder Parameter Error
The parameters in the encoder are corrupted.
Gr.1
No
A.Cb0
Encoder Echoback Error
The contents of communications with the
encoder are incorrect.
Gr.1
No
A.CC0
Multiturn Limit Disagree-
ment
Different multiturn limits have been set in the
encoder and the SERVOPACK.
Gr.1
No
A.CF1
Reception Failed Error in
Feedback Option Module
Communications
Receiving data from the Feedback Option Mod-
ule failed.
Gr.1
No
A.CF2
Timer Stopped Error in
Feedback Option Module
Communications
An error occurred in the timer for communica-
tions with the Feedback Option Module.
Gr.1
No
A.d00
Position Deviation Over-
flow
The setting of Pn520 (Position Deviation Overflow
Alarm Level) was exceeded by the position devia-
tion while the servo was ON.
Gr.1
Yes
A.d01
Position Deviation Over-
flow Alarm at Servo ON
The servo was turned ON after the position devi-
ation exceeded the setting of Pn526 (Position
Deviation Overflow Alarm Level at Servo ON)
while the servo was OFF.
Gr.1
Yes
Continued on next page.
Continued from previous page.
Alarm
Number
Alarm Name
Alarm Meaning
Servo-
motor
Stop-
ping
Method
Alarm
Reset
Possi-
ble?
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