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479
Alarm Display
Di i l
7-
S
Alarm Output
Alarm Name
Meaning
Remarks
p y
on Digital
Operator
Segment
LED
Alarm Code Output
ALM
O
g
Operator
LED
ALO1
AL02
AL03
Output
OFF
OFF
OFF
OFF
Absolute
encoder
backup error
All three power supplies
for the absolute encoder
(+5 V, battery and
internal capacitor) have
failed.
For
absolute
encoder
only
OFF
OFF
OFF
OFF
Absolute
encoder
checksum error
The checksum results of
absolute encoder
memory is abnormal.
For
absolute
encoder
only
OFF
OFF
OFF
OFF
Absolute
encoder
battery error
Battery voltage for the
absolute encoder is
abnormal.
For
absolute
encoder
only
OFF
OFF
OFF
OFF
Absolute
encoder data
error
The checksum results of
absolute encoder
memory is abnormal.
For
absolute
encoder
only
OFF
OFF
OFF
OFF
Absolute
encoder
overspeed
The motor was running
at a speed exceeding
400 r/min when the
absolute encoder was
turned ON.
For
absolute
encoder
only
OFF
OFF
OFF
OFF
Reference
input read error
Servopack CPU failed to
detect reference input.
ON
OFF
ON
OFF
Servo overun
detected
The servomotor
(encoder) ran out of
control.
ON
OFF
ON
OFF
Encoder output
phase error
Incremental
encoder initial
pulse error
Phases A, B and C
output by the encoder
are abnormal.
Wiring of encoder phase
A or B is disconnected.
ON
OFF
ON
OFF
Encoder A-,
B-phase
disconnection
Phases A, B and C
output by the encoder
are abnormal.
ON
OFF
ON
OFF
Encoder
C-phase
disconnection
Wiring of encoder
phases C is
disconnected.
ON
OFF
ON
OFF
Full-closed
loop A-,
B-phase
disconnection
A-, B-phase of external
PG is disconnected.
Only for
full-closed
specifi-
cation
ON
OFF
ON
OFF
Full-closed
loop C-phase
disconnection
C-phase of external PG
is disconnected.
Only for
full-closed
specifi-
cation
OFF:
Output transistor is OFF
ON
:
Output transistor is ON
E