Web Tension Controls

 

OWC-330 Load Cell Control

The OWC-330 digital web tension control operates in conjunction with load cells and can be used at unwinders, process (NIP) sections and rewinders. The HMI with 4,3" TFT 256 - display is prepared for "plug & play" installation. It ensures precise web tension control and also includes numerous features for optimal use at web processing machines. 

In addition to numerous other functions, this web tension control offers the following features:
web break detection, soft-start and quick-stop compensation, flying splice, taper tension, range expansion, variable wrab angle compensation, diameter control, record & analysis function, etc..  

All OWC-300 types are available either with optional housing or purely as control boards.

OWC-320 Dancer Control

The OWC-320 digital web tension control is used in conjunction with a dancer system at the unwinder of machines for web processing. This progressive PID control regulates the web tension depending on the dancer position, roll weight and gain. With this dynamic system, short reaction times and a high control precision are of decisive importance for the stability of the system.

In addition to numerous other functions, this web tension control offers the following features:
web break detection, soft-start and quick-stop compensation, flying splice, range expansion, diameter control, record & analysis function, etc..

All OWC-300 types are available either with optional housing or purely as control boards.

OWC-310 Open-Loop Control

The OWC-310 digital web tension control is used at unwinders and rewinders. The control receives a diameter signal from the roll via US sensor, laser sensor, proximity sensor or similar. Brakes, clutches and drives are controlled based on the measured or calculated roll diameter, which ensures a constant web tension.

Up to 6 control ranges are available. Features such as Start/Stop function, diameter calculation, mass inertia compensation , etc., are part of the performance spectrum.

All OWC-300 types are available either with optional housing or purely as control boards.

OWC-110 Ultrasonic Web Tension Control

The OWC-110 ultrasonic control system enables easy and cost-effective web tension control via contactless scanning of the roll diameter using ultrasonics. The system can also be subsequently installed at unwinders and rewinders without the need for extensive modifications. The "Touch-Panel" ensures high operating convenience and optimal system visualisation.

OWI-120/130 Web Tension Display

When using load cells, the actual web tension can be visualised with the aid of OWI-120/130 web tension displays. Different versions are available for all standard load cells and for power supply voltages of 24 V DC and 110 - 220 V AC.

OWA-120/130 Amplifier Module

OWA-120/130 amplifier modules are compact and can be used for the amplification of measuring signals of standard load cells. Power supply voltage range 110 – 240 VAC.

OWA-124/134 Amplifier Module

OWA-124/134 amplifier modules are compact and can be used for the amplification of measuring signals of standard load cells. Power supply voltage 24 V DC.

OWP-200 Pneumatic Interface

This pneumatic interface is an important connecting link between OWC web tension controls and pneumatic brakes and clutches. The system includes an I/P converter, digital pressure gauge as well as up to 4 optional solenoid valves for the variable control of individual friction modules at brakes and clutches.

OWP-120 I/P Converter

The OWP-120 I/P converter is an important module in the OWP-200 pneumatic series. Different special types are available to suit specific applications.