167
Operation setting at fault occurrence
P
ARAME
TERS
4.14.4 Overspeed detection (Pr.374)
The drive unit output can be shut off in case of overspeed.
Parameter
number
Name
Initial value
Setting range
Description
374
Overspeed detection level
3450r/min
0 to 4800r/min
When the motor speed reaches or
exceeds the speed set in
Pr.374
,
overspeed (E.OS) occurs, and the drive
unit outputs is stopped.
The above parameters can be set when
Pr.160 Extended function display selection
= "0".
When a value exceeding 3000 r/min is set, the rotation speed will be limited at 3000 r/min.
Also, when an S-PM geared motor is used, the maximum setting value differs depending on the drive unit capacity. (0.2 to 2.2K: 12000 r/min, 3.7K: 8000
r/min)
ALM
Motor rotation speed
Time
E.OS
Coast to stop
ON
Pr.374
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