
APPENDIXB. ALARM LIST
B–63785EN/01
476
Number Message Contents
SV0008 EXCESS ERROR (STOP) Position deviation during a stop is larger than the value set in parameter
No. 1829.
Check the value of the position deviation error limit in parameter No.
1829.
SV0009 EXCESS ERROR (MOVING) The position deviation during movement is larger than the value set in
parameter No. 1828.
SV0011 LSI OVERFLOW The position deviation counter overflowed.
SV0012 MOTION VALUE OVERFLOW A speed exceeding the travel speed limit was specified.
The following travel speed limit applies:
In acceleration/deceleration before look–ahead interpolation mode:
32767 pulses/ms (detection unit)
When feed–forward is disabled in a mode other than
acceleration/deceleration before look–ahead interpolation mode:
32767 pulses/ms (detection unit)
When feed–forward is enabled in a mode other than
acceleration/deceleration before look–ahead interpolation mode:
4095 pulses/ms (detection unit)
By setting bit 1 (FFN) of parameter No. 1801 to 1, feed–forward can be
enabled only in acceleration/deceleration before look–ahead
interpolation mode. With this capability, the travel speed limit can be set
to 32767 pulses/ms at all times.
SV0013 IMPROPER V_READY OFF The speed control ready signal (VRDY) turned OFF even though the
position control ready signal (PRDY) was ON.
SV0014 IMPROPER V_READY ON The speed control ready signal (VRDY) turned ON even though the
position control ready signal (PRDY) was OFF.
SV0024 SYNC EXCESS ERROR ALARM 2 The synchronous error amount is greater than the value set to
parameter No. 1913 by the synchronize adjust function.
When synchronization alignment has not completed after the power is
turned ON, this error is judged by the value obtained of multiplying the
value of parameter No. 1913 by the value of parameter No. 1910.
SV0025 V_READY ON (INITIALIZING) During servo control, the speed control ready signal (VRDY) turned ON
even though it is supposed to be OFF.
SV0026 ILLEGAL AXIS ARRANGE The parameter for specifying the arrangement of the servo axes is set
incorrectly.
A minus value, duplicated value, or a value larger than the number of
controlled axes has been set to parameter No. 1023 (servo No. axis for
each axis).
SV0027 ILL DGTL SERVO PARAMETER The setting of the digital servo parameter is illegal.
SV0030 EMERGENCY STOP Emergency stop occurred.
Whether or not this alarm is generated is determined by ENR parameter
No. 2001#0).
1: The control is reset by an emergency stop.
0: This alarm is generated without reset by an emergency stop.
An emergency stop is canceled by resetting the control.
SV0055 ILLEGAL TANDEM AXIS The setting of parameter No. 1023 is illegal in tandem control.
SV0056 ILLEGAL TANDEM PAIR The setting of parameter No. 1020 or TDM parameter No. 1817#6 is
illegal in tandem control.
SV0060 FSSB: OPEN READY TIME OUT The FSSB was not in a ready to open state during initialization.
A probable cause is an axis card malfunction.
B.5
SERVO ALARM
(SV ALARM)