Printing & Converting
Cut-to-length machine automation links job settings, material feed, length feedback and the cutting cycle. PLC, HMI, encoder, VFD or servo choices depend on the material, feed mechanics, cutter and repeatability requirements.
The control sequence connects material detection and job settings to a feed command, length feedback and cut-cycle handshake. The PLC should confirm the feed is in the expected state, stop or position the material according to the machine design, then wait for cut completion before advancing. A different sequence may be needed for flying or continuously moving cutters; that capability must be established from the actual machine.
An encoder can provide length or position feedback when mechanically coupled and electrically compatible with the controller. Measuring wheel slip, backlash, material stretch, sensor resolution, cutter delay and stopping response can all influence repeatability. The control specification should define how length is measured and how the line handles a missing or implausible signal rather than promise an unsupported accuracy.
The HMI can show the active job, measured length, piece count, machine state and fault reason. SmartPLC can review the machine sequence, existing PLC/HMI, feed drive, encoder and cutting interfaces before estimating programming, panel changes or an automation retrofit. Product cards use real active catalog items and do not imply automatic compatibility.
A cut-to-length system measures or indexes material, feeds it to a target length, performs a cut and prepares for the next piece. The measurement may use an encoder, measuring wheel, sensor or another machine-specific method. Mechanical slip, material behavior, sensor placement and drive response all affect achievable repeatability, so no accuracy can be assumed without reviewing the equipment.
The PLC can manage job parameters, feed states, target comparison, cut permissives, cycle completion and piece count. Encoder-based measurement is appropriate only when a compatible sensor, mounting and signal interface are present.
A VFD may suit speed-controlled feeding, while servo or other motion control may be used when the positioning demands and mechanics require it. Selection depends on load, feed design, stopping behavior and feedback—not on the page keyword.
An HMI may provide authorized job length and quantity entry, automatic/manual selection, feed or jog commands where safe, cycle status and fault messages. Setpoint limits and operator permissions should be agreed for the machine.
Cut-cycle permissives should include the machine's required guards, material and actuator states. Existing safety circuitry must be evaluated independently from standard PLC logic. A retrofit needs a review of drawings, controller, drive, feedback and cutter interfaces.
Explore the control systems that may be relevant to this scope.
These active catalog products are related by their existing category. Confirm model compatibility and availability for your application.
Control Panel Components
Automatic relay and contactor-based control panel for 10 HP baling machines, providing automatic cycle control, motor protection, limit-switch sequencing, fault indication and operator controls without a PLC.
Control Panel Components
Fully automatic AGSS control panel for automatic operation and monitoring of two-stage vacuum/scavenging systems, featuring HMI monitoring, automatic pump control, pump selection, alarms, protection and emergency stop.
PLC
Siemens S7-1200 CPU 1214C DC/DC/DC PLC with 14 digital inputs, 10 digital transistor outputs and 2 analog inputs. 24 V DC supply, 150 KB program/data memory and PROFINET communication.
VFD & Drives
Delta VFD002EL21A 0.2kW (0.25HP) VFD with 200–240V single-phase input, 3-phase output, 1.6A rated output current, V/F control, RS-485 Modbus, built-in braking transistor and 0.1–600Hz frequency range.
HMI
Delta DOP-107CV 7-inch industrial touchscreen HMI with 800×480 resolution, 65,536-color TFT display, 256 MB RAM/ROM, RS-232/RS-485/RS-422 communication, USB Host/Client, and 24 VDC power supply.
PLC
Delta DVP28SV11T2 DVP-SV2 Series high-performance slim PLC with 16 digital inputs and 12 NPN transistor outputs. Featuring high-speed processing, high-speed counters and pulse outputs, it is suitable for machine automation, motion control, packaging, printing, conveyor and industrial control applications
PLC
Delta DVP12SA2 DVP-SA2 Advanced Slim PLC with 8 digital inputs, 4 digital outputs, 24VDC supply, 16K steps and RS-232/RS-485 Modbus communication.
Control Panel Components
Fully automatic PLC-based control panel for iron foundry sand mixing plants with material dosing, sand feeding, mixing, discharge, recipe control, process monitoring and safety interlocks.
Discuss the equipment, existing controls and project requirements with our engineering team.
Request service quote →Discuss the equipment, existing controls and project requirements with our engineering team.
Request service quote →Discuss the equipment, existing controls and project requirements with our engineering team.
Request service quote →Discuss the equipment, existing controls and project requirements with our engineering team.
Request service quote →Discuss the equipment, existing controls and project requirements with our engineering team.
Request service quote →Discuss the equipment, existing controls and project requirements with our engineering team.
Request service quote →The PLC can sequence job selection, material feed, length feedback, cut permissives, cycle completion and piece count. The exact logic depends on the feed and cutter design.
Not always. Length can be measured by different methods. An encoder is an option when the measurement method, mechanical coupling and controller interface suit the machine.
That depends on feed mechanics, required positioning behavior, load and feedback. A VFD may support speed control; servo motion may be considered where the axis and controller requirements call for it.
Measurement method, material movement, mechanical backlash, drive stopping response, cutter timing and sensor installation can all contribute. The required repeatability should be evaluated against the actual machine.
Share the equipment details, current controls and process sequence for a scope review.