5.1 Alarm Indicator Lights
47
Overload
Power was
turned ON.
A SERVOPACK fault occurred.
Replace the SERVOPACK.
Servo was
turned ON.
Servomotor main circuit cable
wiring is incorrect or a contact in
servomotor wiring is faulty.
Check and correct the servomo-
tor wiring.
Encoder cable wiring is incor-
rect or a contact in encoder wir-
ing is faulty.
A SERVOPACK fault occurred.
Replace the SERVOPACK.
The servomo-
tor did not
operation for a
reference input
from the con-
troller.
Servomotor main circuit cable
wiring is incorrect or a contact in
servomotor wiring is faulty.
Check and correct the servomo-
tor wiring.
Encoder cable wiring is incor-
rect or a contact in the cable is
faulty.
The starting torque exceeds the
maximum torque.
Reconsider and correct the
load, operating conditions, and
servomotor capacity.
A SERVOPACK fault occurred.
Replace the SERVOPACK.
Normal opera-
tion.
The effective torque continued
over the period of the rated
torque, or the starting torque
greatly exceeds the rated
torque.
Reconsider the load and opera-
tion conditions.
Reconsider the servomotor
capacity and use a servomotor
with a larger capacity.
Drop in power supply voltage.
Make sure that the power sup-
ply voltage is within the permis-
sible range.
The servomotor coil burned out.
Measure the coil resistance. If
the coil burned out, replace the
servomotor.
The servomotor was operated
with the holding brake engaged.
Measure the voltage of the
brake terminals and release the
brake.
The ambient temperature
around the servomotor
exceeded 55
°
C.
Reconsider the installation con-
ditions so that the ambient tem-
perature will be 55
°
C or less.
The installation conditions of the
SERVOPACK are not suitable
(the SERVOPACK is influenced
by the mounting direction,
mounting space, or ambient
objects).
A SERVOPACK fault occurred.
Replace the SERVOPACK.
Servo OFF sta-
tus.
The servomotor did not stop
three seconds after the SERVO-
PACK is set to servo OFF sta-
tus.
Reconsider the load conditions.
Check to see if the servomotor
is being rotated by an external
force.
Alarm
Display
Alarm
Name
Conditions at
Alarm Occur-
rence
Cause
Corrective Action
AL1
AL2
AL3
AL1
AL2
AL3
TOEP_C710806_01A_0_0.book Seite 47 Montag, 2. Juli 2007 4:24 16