Mitsubishi Electric FR-A800 Series Instruction Manual page 433

Pr.
22 Stall prevention
H500 operation level
156 Stall prevention
H501 operation selection
Second stall
48
prevention operation
H600
level
Second stall
49
prevention operation
H601
frequency
114 Third stall prevention
H602 operation level
115 Third stall prevention
H603 operation frequency
Stall prevention
23 operation level
H610 compensation factor at
double speed
Stall prevention
66
operation reduction
H611
starting frequency
148 Stall prevention level at
H620 0 V input
149 Stall prevention level at
H621 10 V input
Voltage reduction
154
selection during stall
H631
prevention operation
157
OL signal output timer
M430
858 Terminal 4 function
T040 assignment
868 Terminal 1 function
T010 assignment
*1 The upper limit of stall prevention operation is limited internally to the following.
120% (SLD rating), 150% (LD rating), 220% (ND rating), or 280% (HD rating)
432
5. PARAMETERS
5.10 (H) Protective function parameter
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Initial value
Name
FM CA
150%
0
150%
0 Hz
150%
0 Hz
9999
60 Hz 50 Hz
150%
200%
1
0 s
0
0
search engine
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
0.01 to 590 Hz
operation starts.
9999 Pr.48 is enabled when the RT signal is ON.
0 Third stall prevention operation disabled.
The stall prevention operation level can be changed using the
*1
0.1 to 400%
X9 signal.
0 Third stall prevention operation disabled.
Set the frequency at which the stall prevention operation
0.01 to 590 Hz
starts when the X9 signal turns ON.
The stall operation level when running at high speeds above
0 to 200%
the 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 reduction
0
enabled
Output voltage reduction
1
disabled.
Output voltage reduction
10
enabled
Output voltage reduction
11
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
0, 1, 4, 9999
the signal to the terminal 4.
When set "4", the stall prevention level can be changed with
0 to 6, 9999
the signal to the terminal 1.
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.