WD3-004.1802 is Berger Lahr (SIG POSITEC, later acquired by Schneider) WD3 series three-phase stepper power driver. It accepts pulse and direction signal from PLC or motion controller to drive VRDM364/366/368 three-phase stepper motors, built-in rotation speed monitoring function to detect motor stall abnormity. Widely used on printing machinery, textile equipment, packaging automation and special machine tools. It is an end-of-life spare part for legacy Berger Lahr stepper positioning systems.

This cabinet wall-mounted driver adopts IP20 protection class. Input voltage 230~240V AC, rated input current 2A, max output current 4A. Equipped with multiple interfaces: pulse/direction signal port, motor power terminal, encoder feedback port for speed supervision. DIP switches set micro-step resolution and motor rated current. Front panel LED indicators display power, running state and fault alarms for fast on-site troubleshooting.

Built-in protection functions include overcurrent, overvoltage, undervoltage, overheat and motor stall detection. Operating temperature 0~45℃, metal housing with heat sink for heat dissipation. It supports smooth low-vibration stepping motion, reduces resonance in low-speed segment. Parameter setting is completed via onboard DIP switches without extra software.

WD3-004.1802 is obsolete Berger Lahr stepper drive spare part. Many legacy automation machines adopt this model for stepper axis control. When the original unit fails, replacement with identical WD3-004.1802 can reuse mounting holes, power cable, motor wiring and pulse signal cable. Technicians install the driver, set DIP switch parameters and test jogging and positioning motion, so stepper positioning system resumes operation and reduces production downtime.

Before shipment, every WD3-004.1802 undergoes comprehensive functional inspection including power-on self-test, pulse input response test, motor output test and insulation resistance test. All products come with 12-month warranty. Our automation technical team provides remote support for installation, wiring guidance, DIP switch setting and fault diagnosis. Fast global shipping available for urgent maintenance orders.

For automation maintenance engineers and system integrators, WD3-004.1802 is reliable spare three-phase stepper driver for legacy Berger Lahr POSITEC motion systems. It restores high-precision stepper positioning control, guarantees machine operation stability, extends service life of automation assets and avoids whole mechanical axis renovation.