173
Operation setting at fault occurrence
4.14.4 Overspeed detection function (
Pr.374
)
Selecting the IPM motor control by the parameter setting mode or
Pr.998
IPM parameter initialization
changes the
Pr.374
setting
to "maximum motor frequency (motor speed)
105%". (For the details of parameter setting mode and
Pr.998
IPM parameter
initialization
, refer to
page
.)
Inverter outputs are stopped when the motor speed exceeds the
Pr.374
Overspeed detection level
under IPM motor
control.
Parameter
Number
Name
Initial value
Setting range
Description
374
Overspeed detection level
9999
0 to 400Hz
When the motor speed exceeds the
speed set in
Pr.374
, overspeed (E.OS)
occurs, and the inverter outputs are
stopped.
9999
No function
The above parameter can be set when
Pr. 160 Extended function display selection
= "0".
..... Specifications differ according to the date assembled.
to check the SERIAL number.
NOTE
An E.OS activation at a high frequency setting (a frequency higher than "maximum motor speed
105%") may damage the
inverter.
ALM
Motor speed
Time
E.OS
Coast to stop
ON
Pr. 374
Summary of Contents for FR-F700PJ Series
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