5.4. constant tension control

Make sure that the mounting and connection of the proximity switch/encoder is correct, and check if the proximity switch/encoder works correctly.

Set proper values for the constant tension control related parameters.

• Set Function[28] to Radius control.

  Set Ctrl Mode[29] to Constant ctrl.

  Set Count Mode[31] to Thick Sum or Ratio.

• Set proper values for the radius measurement parameters, see Section 5.2.

• Set Torque[38] according to the actual brake/clutch.

• Set proper values for parameters 08-15.

Operate in manual mode to test if the measurement of the radius is correct, if not, goto step 2.

Adjust the output manually, after the tension of the web is stable, switch to automatic mode, the controller will smooth the transition automatically.