CHAPTER 4 APPENDICES
Appendix 3. Alarm Messages
IV
– 26
No. Abbrev.
Message
Details
Cancel-
lation
method
SV0020 NS1
No signal detection 1
The difference input for one of the A, B or Z
phase signals of the detector installed on the
motor end has become "H" or "L".
(Software detection in the B Series.)
PR
SV0021 NS2
No signal detection 2
The difference input for one of the A, B or Z
phase signals of the detector installed on the
machine end has become "H" or "L".
(Software detection in the B Series.)
PR
SV0022 LSIE
LSI
error
An error occurred in the LSI operation.
AR
SV0024 PG
Ground
fault
A motor cable ground fault was detected.
PR
SV0025 ABSE
Absolute position lost
The absolute position data in the absolute
position detector was lost.
AR
SV0026 NAE
Unused axis error
A power module error occurred in an axis for
which the rotary switch on the 2-axis integrated
drive unit was set to F to exclude from control.
PR
SV0027 SCCPU Abs posn detect scale
CPU err
The CPU in the absolute position detection linear
scale is not operating correctly.
PR
SV0028 SOSP Absolute
position
overspeed
The scale in the absolute position linear scale
moved at a speed equal to or higher than
45mm/s during initialization.
(Alarm output from inside the linear scale.)
PR
SV0029 SABS
Absolute posn detect
circuit err
A hardware error occurred in the absolute
position detection circuit in the absolute position
linear scale.
(Alarm output from inside the linear scale.)
PR
SV002A SINC
Relative posn detect
circuit err
A hardware error occurred in the relative position
detection circuit in the relative position linear
scale.
(Alarm output from inside the linear scale.)
PR
SV002B SCPU
Scale CPU error
An error occurred in the CPU in the serial
encoder installed on the motor end.
(Alarm output from the detector.)
PR
SV002C SLED
LED error
Deterioration of the LED in the detector was
detected.
PR
SV002D SDAT
Data error
An error was detected in the position per rotation
in the detector.
PR
SV002F STRE
Communication error
Communication with the detector was cut off, or
the communication data was abnormal.
PR
SV0030 OR
Over regeneration
Overheating of the regenerative resistor was
detected.
PR
SV0031 OS
Overspeed
The motor speed reached 1.2 times the rated
motor speed.
PR
SV0032 PMOC
Power module error
An overcurrent was detected in the IPM used in
the servo drive main circuit section.
PR
SV0033 OV
Over voltage
The PN bus voltage is more than 400V.
PR
SV0034 DP
CRC error
A CRC error occurred in the communication data
from the NC.
PR
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