ABB DSQC667 3HAC026840-001 PROFIBUS DP Interface Module
The ABB DSQC667 3HAC026840-001, also cataloged as the DSQC667 PROFIBUS DP Interface Module, operates as a dedicated hardware component for fieldbus data exchange and closed-loop motion control feedback within ABB IRC5 robot controller platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DSQC667 (3HAC026840-001) |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.028 kg (board) / ~0.2 kg (servo unit assembly) |
| Dimensions | 22.3 mm x 50.5 mm x 56.5 mm |
| Operating Temp | 0 deg C to +45 deg C |
| Power Consumption | Powered via backplane bus (200 V system / 380-480 VAC input options) |
| Article Number | 3HAC026840-001 |
| Protocol Support | Profibus DP (EN 50170, DP-V0 slave) |
| Interface Ports | RS-485 via 9-pin D-SUB connector |
| Drive Output | Up to 15 kW per axis (configuration dependent) |
| Mechanical Support | Plugs into DSQC639 main computer board / IRC5 rack slot |
| Protection Class | IP20 (cabinet installation) |
Backplane Bus Communication Velocity & Network Synchronization
The module connects directly to the DSQC639 main computer board and IRC5 backplane bus, enabling high-speed Profibus DP slave communication across automated control networks. RS-485 differential transceivers isolate digital signals, maintaining low-latency data flow between the robot controller and supervisory PLC or DCS master units. Integrated LED status indicators monitor operational power rails, active node synchronization, and communication loop errors in real time.
Frequently Asked Questions
Q: How does the DSQC667 module obtain operating electrical power inside the controller?
A: The card plugs directly into the internal backplane bus interface, drawing supply power from the system distribution rails without requiring external power wiring.
Q: Which main computer board accepts direct insertion of the DSQC667 card?
A: The board interfaces directly with the dedicated expansion slot of the DSQC639 main computer board inside the IRC5 control cabinet.
Q: What physical network interface is used to connect the module to a Profibus DP network?
A: The board provides an RS-485 serial communication port via a standard 9-pin D-SUB female connector.
Field Installation Guidelines
Follow these sequential physical installation steps when integrating the module:
- De-energize main AC power to the IRC5 robot controller cabinet and apply safety lock-out procedures.
- Put on an ESD grounding wrist strap and connect its clip to an unpainted metal surface on the cabinet frame.
- Access the DSQC639 main computer board inside the IRC5 controller rack enclosure.
- Align the edge connector of the DSQC667 board with the designated slot receptacle on the main computer board.
- Push the module firmly into the slot until the electrical contacts fully seat and mechanical retention clips engage.
- Connect the shielded Profibus DP cable to the RS-485 9-pin D-SUB interface connector.
- Route fieldbus wiring away from high-voltage motor power leads to prevent electromagnetic interference.
- Re-apply power to the controller and verify that front panel LED status indicators show normal bus communication.
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