Parameter Description
Parameters
180
Parameter
Factory
setting
Setting
range
Remarks
600
0
0~4
0
The tension control is invalid
1
Open-loop torque control mode (in the mode of
close-loop vector control)
2
Close-loop speed control mode
3
Close-loop torque control mode (in the mode of
close-loop vector control)
4
Constant line speed control mode
601
0
0~1
0
Wind-up
1
Roll-down
602
0
0~1
0
Active inverse material take-up is not allowed
during startup
1
Active inverse material take-up is allowed during
startup
603
1.00
0.01~300.00 Mechanical transmission ratio
<Setting>
• When P.600=0, the tension control is inactive, and the inverter is used as general inverter.
• When P.600=1, the open-loop torque control mode is active. The inverter controls the
constant tension through controlling the motor output torque. No tension feedback is
required. The speed encoder must be installed when the inverter works in the mode of
close-loop vector control.
•
When P.600=2, the close-loop speed control mode is active. The controlling result is to
make the tension (position) feedback signal stable at the value given by PID.
Close loop means that the tension (position) detection feedback forms a close loop for
adjustment. Speed control mode means that the inverter realizes the control by adjusting
the output frequency according to the feedback signal.
This mode can work in any motor
control mode, that is to say P.300 can be set to 0~4.
•
When P.600=3, the close-loop torque control mode is active. The tension feedback
close-loop adjustment is added on the basis of open-loop tension control.
The tension
signal fed back by the tension detection device and the tension setting value constitute the
PID close-loop adjustment which is used to adjust the inverter output Torque reference. The
control method of it works in the mode of close-loop vector control method, and the speed
encoder must be installed.
•
When P.600=4, the constant line speed control method is active. It is a special application
to realize constant line speed control without PID adjustment, which is more stable than
general close-loop control and applicable to the filed requiring smooth operation rather
than fast line speed adjustment. This mode can work in any motor control mode, that is to
say P.300 can be set to 0~4.
