Product Details

The Delem 7389-003/A4 is an original OEM digital I/O circuit board belonging to the Delem 7389 series, designed for Delem press brake CNC control systems. This press brake digital I/O board manages digital input acquisition, relay output drive and safety interlock signal routing for sheet metal bending machines. As a reliable CNC safety interface board, it links the Delem main controller with foot pedals, limit switches, emergency stop circuits, safety light curtains and hydraulic valve actuators, supporting the full axis set including Y1, Y2, X, R, Z1 and Z2. This Delem spare circuit board is widely stocked as an original replacement spare part for overhaul and retrofit, restoring complete automatic bending cycles for legacy DA and DM series Delem controllers.

Basic Parameters

Brand: Delem

Model: 7389-003/A4

Type: Digital I/O and safety interlock circuit board

Supply voltage: 24 VDC

Signal isolation: Opto-isolated digital inputs, relay outputs

Connection: Plug-in socket for Delem dedicated backplane

Compatible controller: Delem DA / DM series press brake CNC systems

PCB treatment: Conformal coating for dust and moisture resistance

Product type: Original Delem system I/O spare circuit board

Supported Functions

This press brake digital I/O board captures discrete feedback signals from travel limits, foot switches and safety components. The CNC safety interface board transmits switch signals to trigger hydraulic valves, relays and auxiliary machine actuators. It continuously monitors the safety chain and activates system interlock protection once abnormal feedback is detected. This Delem spare circuit board maintains stable signal transmission during long continuous operation and enables direct substitution to shorten equipment downtime during maintenance.

Core Functions

Opto-coupler isolation separates noisy field signals from the internal control bus to suppress industrial electromagnetic interference. The press brake digital I/O board transfers safety and motion trigger signals accurately to guarantee safe bending cycle execution. It cooperates with the main CNC unit to implement axis soft limit protection, pedal enable and emergency stop logic. Onboard signal detection feeds channel faults back to the Delem HMI for fast diagnosis. Its original pin layout supports plug-and-play replacement without complex rewiring.

Hardware Specifications & Environmental Features

Mounting: Plug-in installation on Delem dedicated backplane

Operating temperature: 0 °C to +55 °C

Storage temperature: -20 °C to +70 °C

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

Protection: Conformal coated PCB against dust and moisture

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.

available stock.xlsx