Product Details

The Delem DAC 250 is a classic single‑axis programmable NC controller dedicated to backgauge positioning for hydraulic guillotine shears. This shear backgauge NC controller adopts incremental encoder feedback to deliver stable and repeatable length positioning for sheet cutting jobs. As a reliable guillotine shear positioning unit, it supports servo, single‑speed and two‑speed AC or DC drive systems and features a straightforward numeric membrane keypad for fast operator setup. This sheet metal shear NC unit is widely adopted as replacement spare parts and retrofit components for ageing small and medium shearing machines, providing dependable cutting length accuracy and low maintenance requirements for sheet metal fabrication workshops.

Basic Parameters

Brand: Delem

Model: DAC 250

Display: Monochrome segment LCD

Controlled axis: Single X backgauge axis

Encoder input: One incremental encoder channel

Keypad: Dedicated membrane numeric and function keys

Program storage: Multiple cutting recipes with multi‑step positioning

Digital I/O: Isolated 24 VDC digital input and output terminals

Communication: RS232 service port for parameter backup

Drive support: Servo motor, single‑speed AC, two‑speed AC / DC drive

Compatible machine: Hydraulic guillotine swing beam shear

Supply voltage: 18–28 VDC

Product type: Shear backgauge NC controller

Supported Functions

This shear backgauge NC controller supports manual jog movement, single cutting cycle and sequential automatic cutting. The guillotine shear positioning unit provides backgauge retract, position preset, batch counter and inch / metric unit switching. It supports absolute and incremental positioning adjustment, travel limit setting and basic scale factor calibration. This sheet metal shear NC unit also features built‑in I/O signal testing and clear alarm indication for convenient on‑site commissioning and fault verification.

Core Functions

Precision encoder counting ensures consistent backgauge positioning for batch cutting production. The shear backgauge NC controller executes preset positioning sequences accurately and retains all stored cutting programs after power loss. It outputs interlock and drive signals to coordinate the full shear machine cycle. Integrated fault detection helps technicians quickly locate encoder, wiring and signal faults to reduce machine downtime. Its compact panel mounting design allows direct swap for the original failed controller on vintage shearing equipment.

Hardware Specifications & Environmental Features

Mounting: Panel cutout installation

Operation: Integrated membrane numeric and function keypad

Operating temperature: 0 °C to +55 °C

Storage temperature: -20 °C to +70 °C

Relative humidity: 5% – 90%, non‑condensing

Front protection: IP54 against dust and splashing liquid

Condition: Original new or fully tested refurbished Delem spare part

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm 800 series backplane compatibility, pulse signal type, counting mode and preset logic before ordering.

This is from our current stock.

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