3.1 FT82 SERVOPACKs with Analog Voltage/Pulse Train References
3.1.4 Warning Displays
3-34
3.1.4
Warning Displays
If a warning occurs in the SERVOPACK, a warning number will be displayed on the panel dis-
play. Warnings are displayed to warn you before an alarm occurs.
3.1.5
List of Warnings
The list of warnings gives the warning name, warning meaning, and warning code output in
order of the warning numbers.
Warning
Number
Warning Name
Meaning
Warning Code
Output
ALO1 ALO2 ALO3
A.900
Position Deviation
Overflow
The position deviation exceeded the percentage
set with the following formula:
(Pn520
×
Pn51E/100)
H
H
H
A.901
Position Deviation
Overflow Alarm at
Servo ON
The position deviation when the servo was turned
ON exceeded the percentage set with the follow-
ing formula: (Pn526
×
Pn528/100)
H
H
H
A.910
Overload
This warning occurs before an overload alarm
(A.710 or A.720) occurs. If the warning is ignored
and operation is continued, an alarm may occur.
L
H
H
A.911
Vibration
Abnormal vibration was detected during motor
operation. The detection level is the same as
A.520. Set whether to output an alarm or a warn-
ing by setting Pn310 (Vibration Detection Switch).
L
H
H
A.912
Internal Temperature
Warning 1 (Control
Board Temperature
Error)
The surrounding temperature of the control PCB is
abnormal.
H
L
H
A.913
Internal Temperature
Warning 2 (Power
Board Temperature
Error)
The surrounding temperature of the power PCB is
abnormal.
H
L
H
A.920
Regenerative Overload
This warning occurs before an A.320 alarm
(Regenerative Overload) occurs. If the warning is
ignored and operation is continued, an alarm may
occur.
H
L
H
A.921
Dynamic Brake Over-
load
This warning occurs before an A.731 alarm
(Dynamic Brake Overload) occurs. If the warning is
ignored and operation is continued, an alarm may
occur.
H
L
H
A.923
SERVOPACK Built-in
Fan Stopped
The fan inside the SERVOPACK stopped.
H
L
H
A.930
Absolute Encoder Bat-
tery Error
This warning occurs when the voltage of absolute
encoder’s battery is low.
L
L
H
A.93B
Overheat Warning
The input voltage (temperature) for the overheat
protection input (TH) signal exceeded the setting
of Pn61C (Overheat Warning Level).
L
L
H
A.941
Change of Parameters
Requires Restart
Parameters have been changed that require the
power supply to be turned OFF and ON again.
H
H
L
A.942
Speed Ripple Com-
pensation Information
Disagreement
The speed ripple compensation information stored
in the encoder does not agree with the speed rip-
ple compensation information stored in the SER-
VOPACK.
H
H
L
A.971
Undervoltage
This warning occurs before an A.410 alarm
(Undervoltage) occurs. If the warning is ignored
and operation is continued, an alarm may occur.
L
L
L
A.9A0
Overtravel
Overtravel was detected while the servo was ON.
H
L
L
Continued on next page.