Products Description
ABB 3ASC25H204 DAPU100 Drive Signal Processing Unit in stock
ABB 3ASC25H204 DAPU100 is a high-performance drive signal processing unit designed for ABB ACS800 series medium and low voltage frequency converters. It is responsible for encoder feedback signal acquisition, closed-loop motion control calculation and digital signal processing for variable frequency drive systems.

This board supports high-resolution encoder input, integrates digital I/O channels and 37-pin D-sub external connector. It obtains 5VDC and 24VDC power supply from the inverter, adopts plug-in installation, widely used for ACS800 drive cabinet maintenance, spare parts replacement and industrial drive system retrofit projects.

Data Parameters
1. Brand: ABB.
2. Model: 3ASC25H204 DAPU100.
3. Product Type: Drive Signal Processing Unit / Encoder Interface Board.
4. Applicable Series: ABB ACS800 variable frequency drive series.
5. Encoder Support: Up to 1024 ppr pulse encoder signal input.
6. External Interface: 37-pin D-sub connector for signal wiring.
7. Power Supply: 5VDC logic power and 24VDC signal power supplied by drive.
8. Function: Speed closed-loop control and position feedback processing.
9. Operating Temperature: -25℃ ~ +55℃.
10. Installation: Plug-in board mounting inside ACS800 inverter cabinet.
Core Functions
1. Collect pulse signals from shaft encoder and convert signals for closed-loop speed and position control of motor.
2. Process real-time motor speed feedback and assist ACS800 drive to realize high-precision speed regulation.
3. Provide multi-channel digital input and output interfaces for drive interlock and status signal transmission.
4. Realize signal conditioning and noise filtering to improve stability of encoder feedback signal in industrial environment.
5. Work as motion control auxiliary board to expand high dynamic position synchronization control function for ACS800 drive.
Application Scenarios
1. Metallurgical factory ABB ACS800 inverter cabinet DAPU100 board replacement and maintenance.
2. Paper making, textile production line variable frequency drive closed-loop control system retrofit project.
3. Port hoisting, material conveyor high-precision synchronous drive hardware renewal.
4. Mining and chemical industry large motor variable speed control spare parts inventory backup.
5. Legacy ACS800 series drive overhaul and aging encoder signal processing board replacement project.
FAQ
1. Q: What is ABB 3ASC25H204 DAPU100?
A: It is DAPU100 drive signal processing and encoder interface board, specially matched with ABB ACS800 frequency converter for motor closed-loop motion control.2. Q: What encoder signal can DAPU100 process?
A: It supports incremental encoder signal up to 1024 pulses per revolution for speed and position feedback.3. Q: Does DAPU100 need external power supply?
A: No, it gets 5VDC and 24VDC power directly from ACS800 inverter without additional external power source.