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Operation setting at fault occurrence
4
PARAMETERS
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". (Refer to page 182)
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