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Parameters
(H) Protective function parameter
FR-F800
5 - 189
5.7.13
Motor overspeeding detection
The Overspeed occurrence (E.OS) is activated when the motor speed exceeds the overspeed detec-
tion level. This function prevents the motor from accidentally speeding over the specified value, due
to an error in parameter setting, etc.
The maximum motor frequency is set in Pr. 702 "Maximum motor frequency." When Pr. 702 = "9999
(initial value)", the Pr. 84 "Rated motor frequency" setting is applied as the maximum motor
frequency.
Pr.
Name
Initial
value
Setting
range
Description
374
H800
Overspeed detection level
9999
0 to 590 Hz
If the motor rotation speed exceeds the speed set in
Pr. 374 during PM motor control, Overspeed
occurrence (E.OS) occurs, and the inverter output is
shut off.
9999
During PM motor control, E.OS occurs when the speed
exceeds "the motor maximum fre 10 Hz"
Fig. 5-75:
Overspeed detection level and alarm occurrence
I002601E
ALM
E.OS
Motor speed
Pr. 374
Coast to stop
ON
Time
Summary of Contents for FR-F800
Page 2: ......
Page 4: ......
Page 28: ...Related manuals Introduction 1 8 ...
Page 104: ...Connection of stand alone option units Installation and wiring 2 76 ...
Page 162: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 806: ...Outline dimension drawings Specifications 8 26 ...
Page 833: ......