
B-63945EN/02 APPENDIX A.ALARM LIST
- 669 -
(5) Servo alarms (SV alarm)
Number Message Description
SV0001 SYNC ALIGNMENT ERROR In feed axis synchronization control, the amount of
compensation for synchronization exceeded the parameter
(No. 8325) setting value.
This alarm occurs only for a slave axis.
SV0002 SYNC EXCESS ERROR ALARM 2 In feed axis synchronization control, the amount of
synchronization error exceeded the parameter (No. 8332)
setting value. When the synchronization is not completed
after power-up, the determination is made by the parameter
value (No. 8332) multiplied by the parameter (No. 8330)
multiplier.
This alarm occurs only for a slave axis only.
SV0003 SYNCHRONOUS/COMPOSITE/SUPERI
MPOSED CONTROL MODE CAN'T BE
CONTINUED
Since as axis in synchronization, composition, or
superposition mode caused a servo alarm, the mode could
not be continued, If one of the axes in a mode causes a
servo alarm, all axes relating to the axis enter the servo-off
state. This alarm is generated to enable the cause of the
servo-off state to be checked.
SV0004 EXCESS ERROR (G31) The amount of positional deviation during torque limit skip
command operation exceeded the limit value of the
parameter No.6287.
SV0005 SYNC EXCESS ERROR (MCN) In feed axis synchronization control, for synchronization, the
difference value of the machine coordinate between a master
and slave axes exceeded the parameter (No. 8314) setting
value.
This alarm occurs for a master or slave axis.
SV0301 APC ALARM: COMMUNICATION
ERROR
Since the absolute-position detector caused a
communication error, the correct machine position could not
be obtained. (data transfer error)
The absolute-position detector, cable, or servo interface
module is thought to be defective.
SV0302 APC ALARM: OVER TIME ERROR Since the absolute-position detector caused an overtime
error, the correct machine position could not be obtained.
(data transfer error)
The absolute-position detector, cable, or servo interface
module is thought to be defective.
SV0303 APC ALARM: FRAMING ERROR Since the absolute-position detector caused a framing error,
the correct machine position could not be obtained. (data
transfer error)
The absolute-position detector, cable, or servo interface
module is thought to be defective.
SV0304 APC ALARM: PARITY ERROR Since the absolute-position detector caused a parity error,
the correct machine position could not be obtained. (data
transfer error)
The absolute-position detector, cable, or servo interface
module is thought to be defective.
SV0305 APC ALARM: PULSE ERROR Since the absolute-position detector caused a pulse error,
the correct machine position could not be obtained.
The absolute-position detector, or cable is thought to be
defective.
SV0306 APC ALARM: OVER FLOW ERROR Since the amount of positional deviation overflowed, the
correct machine position could not be obtained.
Check to see the parameter No. 2084 or No. 2085.