
B–64113EN–1/01
2. PREPARATIONS FOR OPERATION
185
4248 Spindle load torque monitor constant
[Data type] Word axis
[Valid data range] 0 to 32767
[Standard setting] Depends of the motor model.
This constant is determined by the maximum output torque and inertia of
the motor. It is used for observer processing.
4249 Observer gain 1 for spindle load torque monitor
[Data type] Word axis
[Valid data range] 0 to 32767
[Standard setting] 500
4250 Observer gain 2 for spindle load torque monitor
[Data type] Word axis
[Valid data range] 0 to 32767
[Standard setting] 500
4341 Threshold for abnormal load detection alarm
[Data type] Word axis
[Unit of data] 0.01 %
[Valid data range] 0 to 10000
This parameter specifies the threshold load torque at which an abnormal
load detection alarm is issued for the spindle. Set a percentage (in units of
0.01 %) for the maximum output torque of the motor. When 0 is set, no
abnormal load detection alarm is issued for the spindle.
(1)Servo axis
Number Message Description
409
Servo alarm: Abnormal load
detected on axis n
An abnormal load was detected on a servo
motor, or on a spindle motor during Cs
mode. To release the alarm, use RESET.
(2)Spindle
Number Message Description
754
Abnormal load detected on
the first spindle
An abnormal load was detected on the first
spindle motor. To release the alarm, use
RESET.
764
Abnormal load detected on
the second spindle
An abnormal load was detected on the se-
cond spindle motor. To release the alarm,
use RESET.
Alarm and message