Mitsubishi Electric FR-A720-0.4K Instruction Manual page 107

Parameter List
Parameter
22
Torque limit level
OL signal output
157
timer
Constant power
range torque
803
characteristic
selection
Torque limit input
810
method selection
Set resolution
811
switchover
Torque limit level
812
(regeneration)
Torque limit level
813
(3rd quadrant)
Torque limit level
814
(4th quadrant)
Torque limit level 2
815
Torque limit level
816
during acceleration
Torque limit level
817
during deceleration
OLT level setting
874
24 to 27
Refer to Pr. 4 to Pr. 6.
—
Multi-speed input
28
compensation
selection
100
Incre- Initial
Name
ments Value
150/
0.1%
200%
0.1s 0s
1 0
1 0
1 0
0.1% 9999
0.1% 9999
0.1% 9999
0.1% 9999
0.1% 9999
0.1% 9999
0.1% 150%
1 0
Range
This functions as torque limit level under
Real sensorless vector control.
* For the 3.7K or lower, the initial value changes
from 150% to 200% when V/F control or
0 to 400%
Advanced magnetic flux vector is changed to
*
Real sensorless vector control or vector
control.
Refer to page 99 for stall prevention
operation level.
Set the output start time of the OL signal
0 to 25s
output when torque limit is activated.
9999 Without the OL signal output
Constant output limit (torque current limit
0
and control)
Constant torque limit (torque limit and
1
control)
Internal torque limit
0 Parameter-set torque limit operation is
performed.
External torque limit
1 Torque limit based on the analog input to
terminal 1 and 4
Running speed
increments
0 1r/min
1 0.1r/min
10 1r/min
11 0.1r/min
Set the torque limit level for forward
0 to 400%
rotation regeneration.
Limit at the value of Pr. 22 or analog
9999
terminal
Set the torque limit level for reverse
0 to 400%
rotation driving.
Limit at the value of Pr. 22 or analog
9999
terminal
Set the torque limit level for reverse
0 to 400%
rotation regeneration.
Limit at the value of Pr. 22 or analog
9999
terminal
When the torque limit selection (TL) signal
0 to 400% is on, the Pr. 815 value is a torque limit
value regardless of Pr. 810.
9999 The torque limit set to.Pr. 810 is active.
Set the torque limit value during
0 to 400%
acceleration.
9999 Same torque limit as at constant speed
Set the torque limit value during
0 to 400%
deceleration.
9999 Same torque limit as at constant speed
This function can make an inverter trip if
the torque limit is activated to stall the
0 to 200%
motor. Set the output torque at which an
inverter trip is made in Pr. 874 .
0 Without compensation
1 With compensation
Description
Torque limit
increments
0.1% increments
0.01% increments
: enabled
× : disabled