Mitsubishi Electric FR-A701 Instrucion Manual page 108

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