ALSTOM DIZ232.1 029.223.004 Digital Interface Board

ALSTOM DIZ232.1 | 029.223.004 Digital Interface Board (Pulse Counting Type) >
Brand: **ALSTOM / Converteam (subsequently merged into GE Power Conversion)**
Model Identification: PCB silk screen **DIZ232.1**; Alstom material code **029.223.004** (both for spare parts inquiry should be written together)
Classification: **8-channel high-speed digital pulse counter / digital interface board** (excitation, plug-in card for high-power drive cabinets)

✅ Core Function

1. **8-channel DC pulse / digital quantity acquisition** (12 – 30VDC, typical 24VDC), supporting high-speed pulse counting, speed / encoder pulse acquisition
2. Optical isolation, strong and weak current isolation, used for on-site switch quantity, pulse feedback, knife switch / fan / emergency stop interlock signal conversion
3. Belongs to the Alstom 232 series bus board card family (the same series also includes ADU232.1, DAU232.1, BIO232.1)
4. Typical partner: **WAGO 750-873 (commonly known as 758-873) I/O controller**, used in conjunction for synchronous motor excitation, ship propulsion, rolling mill main drive system

📌 Key Specifications

– Channels: **8-channel voltage-type pulse / digital input**
– Input voltage: **12…30 VDC (rated 24VDC)**
– Function: Digital signal isolation transmission + pulse counting
– Operating temperature: **-20℃ ~ +70℃**
– Installation: Cabinet slot type (Alstom drive / excitation frame)