12 Error Lists
12-4
12.3
Errors in Semi-closed Loop Control with Rotary Motors
Alarm Number: Alarm
Name (Alarm
Description)
Cause
Investigative Actions
Corrective Actions
A.041:
Encoder Output Pulse
Setting Error
The encoder output pulse (Pn212) is
out of the setting range and does not
satisfy the setting condition.
Check the parameter
Pn212.
Set Pn212 to a correct
value.
A.511:
Overspeed of Encoder
Output Pulse Rate
The pulse output speed upper limit of
the set encoder output pulse (Pn212)
is exceeded.
Check the encoder output
pulse output setting
Decrease the setting of the
encoder output pulse
(Pn212).
A.810:
Encoder Backup Error
All the power supplies for the abso-
lute encoder have failed and position
data was cleared.
Check the encoder con-
nector battery or the con-
nector contact status.
Replace the battery or
take similar measures to
supply power to the
encoder, and set up the
encoder (Fn008).
A.820:
Encoder Checksum
Error
An encoder fault occurred.
-
Set up the encoder again
using Fn008. If the alarm
still occurs, the servomo-
tor may be faulty. Replace
the servomotor.
A SERVOPACK fault occurred.
-
The SERVOPACK may
be faulty. Replace the
SERVOPACK.
A.830:
Absolute Encoder Bat-
tery Error
The battery voltage is lower than the
specified value after the control
power supply is turned ON.
Measure the battery volt-
age.
Replace the battery.
A.840:
Encoder Data Error
An encoder fault occurred
Turn the power supply
OFF and then ON again.
If the alarm still occurs,
the servomotor may be
faulty. Replace the servo-
motor.
Malfunction of encoder because of
noise interference, etc.
-
Correct the wiring around
the encoder by separating
the encoder cable from the
servomotor main circuit
cable or by checking the
grounding and other wir-
ing.
Note: If the scale file is configured for Hall sensor connectivity, a Hall sensor must be con-
nected. Disabling Hall sensor connectivity (Pn080.0 = 1) and trying to work without the
sensor will cause error A.840.
A.850:
Encoder Over-speed
The encoder was operating at high
speed when the power was turned
ON.
Check the speed monitor
(Un000) to confirm the
servomotor speed when
the power is turned ON
Reduce the servomotor
speed to a value less than
200 min
-1
, and turn ON
the control power supply.
A.860:
Encoder Over-heated
The internal temperature of encoder
is too high.
Measure the ambient
operating temperature
around the servomotor.
The ambient operating
temperature of the servo-
motor must be 40 °C or
less.
A.C80:
Absolute Encoder Clear
Error and Multi-turn
Limit Setting Error
The multi-turn for the absolute
encoder was not properly cleared or
set.
Turn the power supply
OFF and then ON again.
If the alarm still occurs,
the servomotor may be
faulty. Replace the servo-
motor
The absolute encoder reset was not
completed or not supported.
Turn the power supply
OFF and then ON again.
If the alarm still occurs,
the SERVOPACK may be
faulty. Replace the SER-
VOPACK.
A.C90:
Encoder Communica-
tions Error
Communications between the Sigma-
5 and the Feedback option module is
not possible.
Check the encoder con-
nector contact status.
Check the encoder cable.
Re-insert the encoder con-
nector and confirm that
the encoder is correctly
wired.
Use the encoder cable
with the specified rating.
Summary of Contents for S-V Seres
Page 16: ...xvi ...
Page 62: ...9 Motor and Scale Parameter File 9 2 2 Scale Parameters 9 6 ...