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Open loop Tension Control System TCD030
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Open loop Tension Control System  TCD030


The TCD030 is 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 a signal from a gate generator mounted on the winding/unwinding reel, and a control signal corresponding to the change in the roll diameter is delivered.


  • Non-contact detection of roll diameter
    The roll diameter is detected without any contact being made using a gate generator attached to a winding/unwinding reel. Therefore, the material is not exposed to damage.
  • Easy to operate
    It is operated just by setting the roll radius and the web thickness.
  • Stop output circuit incorporated
    A stop output signal is generated when stopping an unwinder. The reel is stopped without slackening the web.
  • Applicable to various brakes/clutches
    It is available with voltages of 0 to 10V and currents of 4 to 20 mA for control outputs. Combined with a converter, it can control an electromagnetic brake/clutch or an air brake/clutch.
  • Applicable to very thin webs as well as to very thick webs
    The web is available in thicknesses of 1 µm to 9.99 mm.
Radius setting Radius: 1 to 999 mm (internal setting)
Thickness settings 0.01 to 9.99 mm or 1 to 999 μm
Control output 0 to 10V (5 mA) and 4 to 20mA DC
Gate generator input "0": 0 to 1 V or less (10 mA)
"1" : 10 to 12 V
12 V system rectangular wave; one pulse per
revolution of a winding/unwinding reel
Contact input Start signal and stop signal
Contact switching capacity: 15 V DC,
30 mA or more.
Power supply 100/110/200/220 V AC ±10%, 50/60Hz
Power consumption 5VA
Ambient temperature 0 to +50℃
Weight 1.7kg