Mitsubishi Electric FR-F800 Series Instruction Manual page 303

NOTE
• When the load reference is not set for five points, the load characteristics value is determined by linear interpolation of the set
load reference values only. If there is only one load reference setting, the set load reference is used as the load reference all
through the range.
Parameters referred to
Pr.41 Up-to-frequency
Pr.190 to Pr.196 (Output terminal function
5.7.14 Motor overspeeding detection
PM PM PM
The Overspeed occurrence (E.OS) is activated when the motor speed exceeds the overspeed detection level. This function
prevents the motor from accidentally speeding over the specified value, due to an error in parameter setting, etc.
Pr.
374 Overspeed detection
H800 level
*1 The motor maximum frequency is set in Pr.702 Maximum motor frequency. When Pr.702 = "9999 (initial value)", the Pr.84 Rated motor
frequency is used as the maximum motor frequency.
Motor speed
Pr.374
ALM
302
5. PARAMETERS
5.7 (H) Protective function parameter
Downloaded from ManualsNet.com
Load(%)
120
100
80
60
40
26
20
0
0 10 20
sensitivitypage 337
selection)page 330
Initial
Name
value
9999
Coast to stop
ON
E.OS
search engine
30 40 50 60
Setting range
If the motor rotation speed exceeds the speed set in Pr.374 during PM
0 to 590 Hz motor control, overspeed (E.OS) occurs, and the inverter output is shut
off.
During PM motor control, E.OS occurs when the speed exceeds the
9999
"maximum motor frequency + 10 Hz"
Time
70 Frequency(Hz)
Description
*1
.