Open loop Tension Control System TCD050

Overview

The TCD050 s a controller for controlling the tension of a web at the unwinder or winder, without using a tension sensor. The roll diameter is calculated by using signals from two generators mounted on the winding/unwinding reel, and a control signal corresponding to the change in the roll diameter is delivered.

Feature

• The roll diameter can be measured

  The roll diameter is indicated on the indicator while a signal of 0 to 5 V is issued. The TCD050 can be used for other applications such as external taper signals for a closed-loop controller.

• Not necessary to use gears

  The roll diameter is calibrated internally. It is not necessary to use gears between the measure roll and the pulse generator.

• The sequence control makes operation easy

  Since a stop signal that is proportional to the roll diameter is output when the line stops, the web is prevented from slackening.

• The re-start level allows smooth re-starting because the stop level

  immediately before the line stops is stored. In addition, the start level can be set manually with the manual VR by resetting this stored stop level with the reset contact.

• Applicable to various brakes/clutches

  The control output is available at a voltage of 0 to 10 V and a current of 4 to 20 mA. Using them, the TCD050 can control an electromagnetic brake/clutch and an air brake/clutch.

• Taper tension can be controlled

  In addition to the constant tension control, the taper tension can be controlled.

• Compact unit

  This compact unit can be panel-mounted. It can be easily installed in the control panel.

• Non-contact detecting system

  The non-contact detecting system allows the TCD050 to measure the roll diameter without causing any damage. In addition, it is not necessary to make a roll space for attaching a sensor, which is required with other control systems.

Specifications

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