CPC – Center Position Controller

CPC SYSTEM

Strip centre guiding systems with pair of edge position detectors, the sensor system is firmly installed and constantly detects any lateral strip deviation.
The strip centre guiding system is used for uncoilers and steering units, those used to feed strip products to a treatment process or to guide them toward reference position, centrally along the process line.
The measured values are evaluated by the CPC controller and are used to activate the servovalve, which will control the hydraulic cylinder and therefore the actuator which counteracts the lateral deviation of the strip.
And by the stroke transducer, the actuator can be moved to the central position.

CPC – COMPONENT AND TECHNICAL DATA:

Component:

1. Controller

2. Hydraulic power pack (servo valve included)

3. Hydraulic cylinder

4. Stroke transducer

5. CPC sensor

SPECIFICATION:

• Power supply: 220VAC 50Hz (L+N+PE)
• Signal: Digital: 24VDC ; Analog: 4…20mA / 0…10VDC
• Plant-wide data communication via: Profibus/Profinet
• Local data logging for system runtime information & fault trace
• No special tool required for program download and firmware upgrade
• Cylinder stroke range from center position: ± 150mm (max)
• Stroke transducer: magnetostrictive linear displacement sensor (contactless)
• Working hydraulic pressure: 80-140 bar (max)
• Working hydraulic flowrate: 40-80 lpm (max).
• Accuracy: ± 1mm (max) – no mechanical tolerance count
• Dynamic respone to line speed up to 200 mpm (max)

Further information, please refer to attached appendix:

1. CPC Sensor technical specification

2. Hydraulic power pack diagram and technical specification

3. Servo valve and stroke transducer

4. Control system diagram.