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Gefran Packaging Solution Precious objects or everyday products, foods, drinks, powders, cosmetics and pharmaceuticals all share a common need: the right packaging. An elegant package offering total safety and hygiene can contribute to the success of consumer products.Vertical and horizontal packaging machines, dosers, fillers, formers, cartoners, hot melt, and hot air are just some of the machines used for this purpose. Packaging machine automation has to satisfy demands for cycle speed, precision checking, and repeatability, plus careful attention to aesthetics of the packaged product. All aspects of system control must mesh perfectly to achieve these goals. Gefran offers a complete range of products for packaging machine automation, including industrial sensors for the acquisition of physical variables, plus actuators such as solid-state relays and SIEIDrive drives. These instruments perform the following functions: •Supervision •Control of remote I/Os •Complete automations based on PLC and Soft-PLC structuresGefran's new "" operator panels completely control the machine, and can be programmed with the PLC languages approved by IEC-61131-3 and with on-board or remote I/O boards. Integration of sensors with control, supervision and actuation to field is standard practice for Gefran, which has always integrated its products in turnkey solutions.ApplicationsVertical packaging machinesThe main functions of vertical ("form-fill-seal") machines are: •Forming container to required dimensions by sealing heat-seal film on bottom and longitudinal side •Precise dosing of product •Closing by sealing top of bag •Final cuttingGefran's measurement, control, and actuation devices optimize the packaging process, which demands speed, precision, and accurate control of variables.Longitudinal seal Continuous longitudinal sealing of film with high dynamics and low thermal mass is managed by PID loops in series 4-channel controllers. The solid-state relays with on-board heatsink are equipped with a "fast cycling" control.Positioning, Change, Format The sealer / cutter group is positioned according to the formats to be produced. Position is read with series linear potentiometers or with a . remote I/O modules feed the potentiometers and read position with 16 bit resolution.Transverse seal The discontinuous transverse seal is managed by controller loops.Machine cycle and operator interface The machine cycle is managed by the Soft-PLC functions of the industrial terminals, programmable with languages approved by IEC-61131. The graphics pages are available on TFT screens with 3,5" to 15" touch screen.Inputs/Outputs control modules control all of the machine's digital and analog inputs/outputs, including direct signals from potentiometers, load cells, and pressure sensors.Diagnostics, Alarms, ProtectionsAny breaks in heating resistances, temperature sensors, and power junctions are diagnosed by the processor in the controllers and immediately generate alarm messages. The controller houses fuses and fuse holders. Wrappers Multi-head baggers, Dosers •TFT operator panels, touch screen •Programmable in IEC-61131-3 •HMI + SoftPLC functions in a single device •Range from 3.5" to 15", touch •Sturdy industrial construction, IP65, vibration resistant, fanless, diskless •Modbus RTU, Modbus TCP, CANopen, Ethernet TCP/IP connection •4-loop "power" controllers for fastening to DIN bar •Solid-state relays with heatsink on-board •Current transformers on-board •Fuses with fuse holders on-board •Modbus RTU, Modbus TCP, Ethernet IP, CANopen, DeviceNet, Profibus DP connection/ •Controllers with double displays, double PID heat/cool with automatic tuning •Indicators with direct inputs from load cells, fast, high resolution •With and without heatsink •With interrupted load diagnostics and alarm functions and diagnostics for short circuit •Remote I/O onReal Time Ethernet, Modbus TCP, CANopen, Profibus DP
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