Mitsubishi Electric FR-A700 Instruction Manual page 261

Parameter
Pr.
Name
No.
Stall prevention operation
22
level (torque limit level)
Constant power range torque
803
characteristic selection
Torque limit input method
810
selection
811
Set resolution switchover
Torque limit level
812
(regeneration)
Torque limit level
813
(3rd quadrant)
Torque limit level
814
(4th quadrant)
815
Torque limit level 2
Torque limit level during
816
acceleration
Torque limit level during
817
deceleration
Terminal 4 function
858
assignment
Terminal 1 function
868
assignment
874
OLT level setting
Setting can be made only when the FR-A7AP is mounted.
FR-A700 EC
Speed control by real sensorless vector control, vector control
Initial Setting
Description
Value Range
Set the torque limit level on the
assumption that the rated torque
is 100%
* For the 00126 or less, the value
150%/
0–400% changes from 150% to 200%
200% *
when V/f control or advanced
magnetic flux vector control is
changed to real sensorless vec-
tor control or vector control.
Constant motor
0
output limit
0
Constant
1
torque limit
Internal torque limit (torque limit
0
by parameter settings)
0
External torque limit (torque limit
1
by terminal 1, 4)
Speed setting
and running
speed monitor
increments
from the PU,
RS-485 com-
munication or
0
communica-
tion option.
0 1 r/min
1 0.1 r/min
10 1 r/min
11 0.1 r/min
Set the torque limit level for for-
0–400%
ward rotation regeneration.
9999
Limit at the value of Pr. 22 or ana-
9999
log terminal
Set the torque limit level for
0–400%
reverse rotation driving.
9999
Limit at the value of Pr. 22 or ana-
9999
log terminal
Set the torque limit level for
0–400%
reverse rotation regeneration.
9999
Limit at the value of Pr. 22 or ana-
9999
log terminal
When the torque limit selection
(TL) signal is on, the Pr. 815 value
0–400%
is a torque limit value regardless
9999
of Pr. 810.
Limit at the value of Pr. 22 or ana-
9999
log terminal
Set the torque limit value during
0–400%
acceleration.
9999
Same torque limit as at constant
9999
speed
Set the torque limit value during
0–400%
deceleration.
9999
Same torque limit as at constant
9999
speed
When "4" is set in, the torque limit
0 0/4/9999 can be changed with a signal to
terminal 4.
When "4" is set in, the torque limit
0 0/2–5/9999 can be changed with a signal to
terminal 1.
This function can make an alarm
stop if the torque limit is activated
150% 0–200%
to stall the motor. Set the output
at which an alarm stop is made.
Parameters referred to
22
178–189
840
865
Select the torque
limit in the con-
stant output
region by torque
limit 1 Constant
torque setting.
Torque limit set-
ting increments
Pr. 22, Pr. 812 to
Pr. 817
0.1%
0.01%
Refer to
Section
Stall prevention 6.7.4
operation level
Input terminal 6.14.1
function selection)
Torque bias selec- 6.3.5
tion
Low speed detec- 6.14.6
tion
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