Parameter Description
Parameters
176
5.8
2
Torque control parameters (P.400~P.407)
P.400 “The torque control parameter”
P.401 “Torque reference”
P.402“Speed limit”
P.403 “Speed limit bias”
P.404 “Torque filter coefficient”
P.405 “Torque setting source”
P.406
“
Selection of speed limit
”
P.407 “Unidirectional Speed Limit
Bias”
Parameter
Factory
setting
Setting range
Remarks
400
0
0~1
0 Torque control is invalid
1
Torque control is valid (in the mode of close-loop
vector control)
401
0%
-100%~100% Torque reference
402
0
-120%~120%
When P.406=0, speed limit of torque control is
effective. The speed limit value is set as a percentage
of the P.305.
403
10%
0%~120%
The bias is set as a percentage of the P.305.
404
0
0~31
Torque filter coefficient
405
0
0~2
0 The torque is given by the parameter P.401
1 The torque is given by the analog or pulse input
2 The torque is given by the communication mode
406
0
0~1
0 The speed is limited according to
P.402 and P.403.
1
Frequency reference source(it is decided
according to P.79)
407
0
0~1
Parameter P.407 selects how the speed limit bias is
applied. Please refer to the instruction on speed limit
of torque control and speed limit bias.
<Setting>
•
When P.400=0, the torque control is invalid and the inverter will do the general close-loop
vector speed control. When P.400=1, the torque control is valid and the inverter will do the
torque control. When the torque control is valid, the inverter need to work in the mode of
close-loop vector control and the speed encoder must be installed.
And if the Torque
reference is larger than
the load torque, the motor will accelerate until the motor speed is
equal to the speed limit. Now the inverter will switch to speed control mode to avoid
accelerating the motor continually.
When P.400=1, “the switch function of external terminal speed /torque control” is invalid,
and only the torque control function can be operated.
•
P.401 is used to set the Torque reference, the actual Torque reference =P.401* the motor
