
APPENDIX
B–62075E/04
C. ERROR CODE TABLE
380
Number Message displayed on CRT Contents Remarks
SV 000 TACHOGENERATER
DISCONNECT
The tachogenerator is disconnected. Axis type
SV 001 EXCESS CURRENT IN
SERVO
The servo motor was overloaded. Axis type
SV 002 BREAKER
(FEED_CTL_UNIT) OFF
The breaker for the velocity control circuit tripped. Axis type
SV 003 ABNORMAL CURRENT IN
SERVO
Excessive current was detected in the velocity control circuit. Axis type
SV 004 EXCESS V TO MOTOR Excessive voltage was detected in the velocity control circuit. Axis type
SV 005 EXCESS DISCHARGE I
FROM MOTOR
Excessive discharge current from the motor was detected in the
velocity control circuit.
Axis type
SV 006 VELOCTY UNIT POWER
TOO LOW
Low voltage was detected in the velocity control circuit. Axis type
SV 008 EXCESS ERROR (STOP) Position deviation when stopped is larger than the value set in
parameter No. 1829.
Axis type
SV 009 EXCESS ERROR (MOVING) Position deviation while moving is larger than the value set in pa-
rameter No. 1828.
Axis type
SV 010 EXCESS DRIFT
COMPENSATION
Drift compensation is excessive (exceeded 500VELO). Axis type
SV 011 LSI OVERFLOW The value specified for position deviation compensation is not
within the range of –32767 to +32767, or the command value of
the D/A converter is not within the range of –8192 to +8192. In
general, this alarm occurs due to incorrect settings.
Axis type
SV 012 MOTION VALUE
OVERFLOW
A speed greater than 512,000 pulses per second (frequency con-
verted into detection units) was specified. In general, this alarm
occurs due to incorrect setting of parameter CMR or the feedrate.
Axis type
SV 013 IMPROPER V–READY OFF The speed control ready signal (VRDY) went off even though the
position control ready signal (PRDY) was on. When a multiaxis
amplifier is being used, specifying controlled axis detachment for
any axis driven by the amplifier causes alarm SV013 to be issued
for the other axes driven by that amplifier.
Axis type
SV 014 IMPROPER V–READY ON The speed control ready signal (VRDY) went on even though the
position control ready signal (PRDY) was off.
Axis type
SV 015 PULSE CODER
DISCONNECTED
The pulse coder is disconnected. Axis type
SV 017 ILL POSITION CONTROL
LSI
A fault occurred in the LSI for position control. Axis type
SV 018 INCORRECT DSCG
FREQUENCY
A fault was detected in a resolver or inductsyn feedback frequency
check.
Axis type
SV 019 INCORRECT PULSE
CODER PULSE
A fault was detected in the feedback pulse from the pulse coder. Axis type
SV 020 INCORRECT PHASE SHIFT
VALUE
The resolver or induction phase shift cannot be obtained correctly. Axis type
SV 021 1–REV PULSE SIGNAL
INCORRECT
The single–revolution signal for the pulse coder went on at an in-
correct position.
Axis type
SV 022 1–REV PULSE MISSING The single–revolution signal for the pulse coder did not go on with-
in the appropriate range.
Axis type
SV 023 SV OVERLOAD A servo motor overloaded. Axis type
SV 024 EXCESS ERROR ALARM 2 Alarm 2 for excess synchronous error was generated.
SV 025 V–READY ON
(INITIALIZING)
During servo control, the speed control ready signal (VRDY) is on
even though it is supposed to be off.
Axis type