Overspeed Detection (Pr.374) - Mitsubishi Electric FR-E700EX Instruction Manual

4.14.4 Overspeed detection (Pr.374)

The drive unit output can be shut off in case of overspeed.
Parameter
Name
number
374 Overspeed detection level
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)
Initial value
3450r/min
Motor rotation speed
Pr.374
ALM
Operation setting at fault occurrence
Setting range
When the motor speed reaches or
exceeds the speed set in Pr.374,
0 to 4800r/min 
overspeed (E.OS) occurs, and the drive
unit outputs is stopped.
Coast to stop
Time
ON
E.OS
Description
167
4