ABB 3ASC25H204 DAPU100 Replacement Control Module

The ABB 3ASC25H204 DAPU100 Replacement Control Module is the I/O control board (Control Board, I/O) of the ABB DARA 1000 / DARA 2000 thyristor AC drive systems. Working alongside the DAPC100 main control board (3ASC25H203), it provides the input/output signal interface between the drive control electronics and the external control circuits — handling command, feedback, and status signals for the DARA crane and hoist drive family.
Key Features

1. I/O control board for ABB DARA 1000 / DARA 2000 thyristor AC drive systems
2. Companion board to the DAPC100 main control board (3ASC25H203)
3. Handles input/output signal interfacing between drive control logic and external circuits
4. 24 V DC supply (24 V DC ±10%)
5. Isolated I/O channels (16 input / 16 output per service data)
6. Compact plug-in board (approx. 0.08 kg) for DARA drive cubicle mounting
7. Swedish-made (ABB, DARA drive family)

1. Type Designation: DAPU100
2. Order Code: 3ASC25H204
3. Product Type: Control board — I/O (DAPU 100; Control Board, I/O)
4. System: ABB DARA 1000 / DARA 2000 series thyristor AC drives (crane / hoist applications)
5. Function: Input/output signal interface for the drive control system
6. Supply Voltage: 24 V DC ±10%
7. I/O Channels: 16 isolated inputs / 16 isolated outputs (service data)
8. Input Range: 0–30 V DC (service data)
9. Weight: approx. 0.08 kg
10. Mounting: DARA drive cubicle (board slot)
11. Origin: Sweden (ABB)

1. De-energize the DARA drive cubicle and confirm the DC-link is discharged before handling the board.
2. Install the DAPU100 in its designated I/O board slot; seat the connector fully and secure the board.
3. Verify the 24 V DC supply (within ±10%) before power-up.
4. Connect the external command / feedback / status wiring per the DARA wiring diagram; check isolation of I/O channels.
5. After commissioning, verify I/O signal exchange with the DAPC100 control board via the drive's diagnostics before returning the drive to service.

1. What is the DAPU100 used for? It is the I/O control board of the ABB DARA drive system: it interfaces input/output signals (commands, feedback, status) between the drive control electronics and the external control circuits, working with the DAPC100 main control board.
2. Which systems use it? ABB DARA 1000 / DARA 2000 thyristor AC drive systems, used in crane and hoist applications. The 3ASC25H203 DAPC100 is its companion control board.
3. What power does it need? 24 V DC ±10%.
4. Where is it manufactured? Sweden.

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