web tension control systems
sensors
The integrated web tension control systems operate an accurate monitoring of the parameters variations and send the correct input to the brake
Web tension sensors
Used in open-loop regulation systems, they send an ultrasonic pulse towards the reel and read the reflected signals
DatasheetWatch videoSensors are used for the web tension control in open-loop systems in order to detect different parameters, for example the diameter of the roll, by emitting ultrasonic pulses towards the reel and reading the reflected signals.
They can also be used in combined or closed-loop systems as a support to the other tension controllers.
Sensors models
Web tension sensors
USX 5000
Ultrasonic sensor
Ultrasonic sensor with programmable measurement field.
| TECHNICAL DATA | |
| power supply | 12÷13 Vdc; 35 mA |
| angle of measurement | 70÷1000 mm programmable |
| resolution | < 0,3 mm |
| repeatability | < 0,5 mm |
| time of response | < 40 ms |
| operating temperature | from -25 °C to +65 °C |
| output | analog 0÷10 V; 2 digital push pull |
| output current | < 100 mA |
| LEDs | LED for power supply + LED for measurement field |
Web tension sensors
SAX 360
Angular sensor
Non-contact inductive angular sensor with programmable angle of measurement.
| TECHNICAL DATA | |
| power supply | 15÷30 Vdc; 100 mA |
| angle of measurement | 0÷360° programmable |
| resolution | 12 bit |
| repeatability | ≤ 0,025% full scale |
| operating temperature | from -25 °C to +70 °C |
| output | analog 0÷10 V or 4÷20 mA programmable |
| LEDs | LED for power supply + LED for measurement field |
Web tension sensors
EP CONVERTER
Transducer
The EP Converter converts the electrical signal received from the controller into a pneumatic value input to be sent to the pneumatic brake. Consequently, the EP Converter adjusts the torque, or RPM if motor, to obtain the web tension required.
The transducer can be used for the web tension control in closed-loop systems and the open-loop system. Thanks to its compact dimensions it can be easily placed near the brake it is connected to, in order to obtain the maximum performance.
The EP Converter is included within the Isobox tension control box and can be configured to work with load cells, dancer or ultrasonic sensor.
- Maximum precision and accuracy
- Very compact dimensions: it can be easily placed near the brake it is connected to, in order to obtain the maximum performance
| TECHNICAL DATA | |
| medium | oil free, dry air, filtered to 5 μm |
| output pressure 0-6 BAR (0-90 psi) | 0-6 BAR (0÷90 psi) |
| supply pressure | minimum 1,5 BAR (22 psi) above max output pressure |
| electrical connection | 0÷10 V / 4÷20 mA |
| supply | 24 VDC ± 10% |
| flow capacity | forward: < 200 l/min (7 scim); relief: < 180 l/min (6 scim) |
| air consumption | √6 BAR (90 si) ≤ 3 nl/min |
| degree of protection | IP30 |
| electromagnetic compatibility | compliant with EC requirements |
| materials | diaphragm: nitrile; base: zinc casting; spacer: aluminum |
