Mitsubishi Electric FR-F820-00046 Instruction Manual page 275

Fr-f800 series
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Pr.
22
Stall prevention
H500
operation level
156
Stall prevention
H501
operation selection
48
H600
Second stall
prevention
V/F
V/F
V/F
operation level
Magnetic flux
Magnetic flux
Magnetic flux
49
Second stall
H601
prevention
V/F
V/F
V/F
operation
frequency
Magnetic flux
Magnetic flux
Magnetic flux
23
Stall prevention
H610
operation level
compensation
V/F
V/F
V/F
factor at double
Magnetic flux
Magnetic flux
Magnetic flux
speed
66
H611
Stall prevention
operation reduction
V/F
V/F
V/F
starting frequency
Magnetic flux
Magnetic flux
Magnetic flux
148
H620
Stall prevention
V/F
V/F
V/F
level at 0 V input
Magnetic flux
Magnetic flux
Magnetic flux
149
H621
Stall prevention
V/F
V/F
V/F
level at 10 V input
Magnetic flux
Magnetic flux
Magnetic flux
154
Voltage reduction
H631
selection during
V/F
V/F
V/F
stall prevention
operation
Magnetic flux
Magnetic flux
Magnetic flux
157
OL signal output
M430
timer
858
Terminal 4 function
T040
assignment
868
Terminal 1 function
T010
assignment
874
H730
OLT level setting
PM
PM
PM
*1
The upper limit of stall prevention operation is limited internally to the following.
120% (SLD rating), 150% (LD rating)
274
5. PARAMETERS
5.7 (H) Protective function parameter
Initial value
Name
FM
CA
120%
110%
0
120%
110%
0 Hz
9999
60 Hz
50 Hz
120%
110%
150%
120%
1
0 s
0
0
120%
110%
Setting range
0
Stall prevention operation disabled.
Set the current limit at which the stall prevention operation
*1
0.1 to 400%
starts.
Enable/disable the stall prevention operation and the fast-
0 to 31, 100, 101
response current limit operation.
0
Second stall prevention operation disabled.
The stall prevention operation level can be changed using the
*1
0.1 to 400%
RT signal.
0
Second stall prevention operation disabled.
Set the frequency at which the Pr.48 stall prevention operation
0.01 to 590 Hz
starts.
9999
Pr.48 is enabled when the RT signal is ON.
The stall operation level when running at high speeds above the
0 to 200%
rated frequency can be reduced.
9999
Stall prevention operation disabled at double speed.
Set the frequency at which the stall operation level reduction
0 to 590 Hz
starts.
*1
0 to 400%
The stall prevention operation level can be changed by the
analog signal input to the terminal 1 (terminal 4).
*1
0 to 400%
Output voltage
0
reduction enabled
Output voltage
1
reduction disabled.
Output voltage
10
reduction enabled
Output voltage
11
reduction disabled.
Set the OL signal output start time when stall prevention is
0 to 25 s
activated.
9999
No OL signal output.
When set "4", the stall prevention level can be changed with the
0, 4, 9999
signal to the terminal 4.
When set "4", the stall prevention level can be changed with the
0, 4, 9999
signal to the terminal 1.
The inverter can be set to trip at activation of stall prevention
0 to 400%
and stalling of the motor. Set the output to be shut off.
Description
Enable/disable the output voltage
reduction during stall prevention
operation.
Use this setting when the overvoltage
protective function (E.OV[]) is activated
during stall prevention operation in an
application with large load inertia.

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