101
S
tall pr
evention
operation
22
Stall prevention
operation level
0.1%
150%
0
Stall prevention operation selection
becomes invalid.
{
{
{
0.1 to 400%
Function as stall prevention operation
under V/F control and advanced magnetic
flux vector control.
Set the current value at which stall
prevention operation is started.
Refer to
page 102
for torque limit level.
23
Stall prevention
operation level
compensation
factor at double
speed
0.1%
9999
0 to 200%
The stall operation level can be reduced
when operating at a high speed above the
rated frequency.
{
{
{
9999
Constant according to
Pr. 22
48
Second stall
prevention
operation current
0.1%
150%
0
Second stall prevention operation invalid
{
{
{
0.1 to 220%
The stall prevention operation level can be
set.
49
Second stall
prevention
operation frequency
0.01Hz
0Hz
0
Second stall prevention operation invalid
{
{
{
0.01 to
400Hz
Set the frequency at which stall prevention
operation of
Pr. 48
is started.
9999
Pr.48
is valid when the RT signal is on.
66
Stall prevention
operation reduction
starting frequency
0.01Hz
60Hz
0 to 400Hz
Set the frequency at which the stall
operation level is started to reduce.
{
{
{
114
Third stall
prevention
operation current
0.1%
150%
0
Third stall prevention operation invalid
{
{
{
0.1 to
220%
The stall prevention operation level can be
set.
115
Third stall
prevention
operation frequency
0.01Hz
0
0
Third stall prevention operation invalid
{
{
{
0.01 to
400Hz
Set the frequency at which stall prevention
operation of
Pr. 114
is started.
148
Stall prevention
level at 0V input
0.1%
150%
0 to 220%
When "4" is set in
Pr. 868
(
Pr. 858
), stall
prevention operation level can be changed
by the analog signal input to terminal 1
(terminal 4).
{
{
{
149
Stall prevention
level at 10V input
0.1%
200%
0 to 220%
{
{
{
154
Voltage reduction
selection during
stall prevention
operation
1
1
0
With voltage
reduction
You can select
whether to use
output voltage
reduction during
stall prevention
operation or not.
{
{
{
1
Without voltage
reduction
156
Stall prevention
operation selection
1
0
0 to 31,
100, 101
Pr. 156
allows you to select whether to use
stall prevention or not according to the
acceleration/deceleration status.
{
{
{
157
OL signal output
timer
0.1s
0s
0 to 25s
Set the output start time of the OL signal
output when stall prevention is activated.
{
{
{
9999
Without the OL signal output
858
Terminal 4 function
assignment
Refer to
page 134.
868
Terminal 1 function
assignment
Fu
nc
tio
n
Parameter
Name
Incre
ments
Initial
Value
Range
Description
Para
meter
copy
Param
eter
clear
All
param
eter
clear
Re
la
te
d
p
a
ra
mete
rs
{
: enabled
×
: disabled
V/FV
/
F
V/F
Magnetic fluxM
a
g
n
e
ti
c
f
lu
x
Magnetic flux
Summary of Contents for FR-A741-11K
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