PECS – The Control System for Extrusion Blow Moulding - Inea

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� Motion control in open-loop or closed-loop for carriage, mould and blow-pin movements � Up to 16 channels possible to drive servo/proportional valves (using four SPAC20 PA4 modules) � Hydraulic motion control with high accuracy and repeatability � Simple calibration of the complete hydraulic system (including valve, cylinder and linear position sensor) Parison Control Wall thickness parison controller is available for continuous as well as for accumulator based machines. The touch screen technology enables fast and efficient design of the parison wall thickness profile. � Wall thickness control using profiles with up to 128 points and smooth interpolation between points � Control loop update in 80µs or 160µs 3
� For continuous extrusion and for accumulator-based machines � Up to 16 channels available for multi-head machines (by using up to four SPAC20 PA4 modules. Axial wall thickness control possible. � Cycle time correction for time based systems and push-out time correction for accumulator based machines � Separate weight and profile adjustments Temperature Control Multi-loop temperature control is capable of accurate temperature control of different types of extruders and co-extruders. Intelligent pre-tune and auto-tune functions are built-in to enable simple automatic tuning of the control loops and to adapt control parameters to varying load conditions. User-friendly graphical screens and improved diagnostics make the control system easy to use and simple to maintain the heating/cooling elements. 4
Page 2 and 3: PECS - The Control System for Extru
Page 6 and 7: � Temperature control of up to 64
Page 8 and 9: Example of the System Configuration

PECS – The Control System for Extrusion Blow Moulding - Inea

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