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Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | DSQC608 |
| Part Number | 3HAC12934-1 |
| Manufacturer | ABB |
| Product Type | Customer I/O power supply module |
| Compatible Controller | ABB IRC5 robot controller |
| Primary Function | 24V DC power supply for customer I/O |
| Typical Output | 24V DC |
| Mounting | Internal controller cabinet module |
| Connection Type | Backplane and terminal connectors |
| Condition | New surplus / Refurbished tested / Used |
| Warranty | 12 months |
Product Introduction
The ABB DSQC608 3HAC12934-1 is a customer I/O power supply module used in ABB IRC5 robot controllers. It provides 24V DC power to customer I/O circuits, helping external sensors, relays, valves, and interface modules operate correctly inside the robot cabinet.This module is not a servo drive or a safety I/O board. Some online listings describe DSQC608 as a servo drive or safety module, but those descriptions conflict with more consistent references identifying it as an IRC5 customer I/O power supply. Always verify the label, connector layout, and controller slot before installation.
Installation & Configuration Guide
Preparation (10 min)
- Power down the IRC5 controller and lock out energy sources.
- Photograph the original module label, connectors, and slot position.
- Confirm the part number reads 3HAC12934-1.
- Check the controller manual for the correct I/O power supply slot.
Removal (5–10 min)
- Disconnect controller mains power.
- Wait for DC bus discharge; do not assume zero voltage immediately.
- Remove connector plugs before unscrewing the module.
- Note cable orientation and connector keying.
Installation (10 min)
- Insert the module into the correct IRC5 slot.
- Seat backplane and terminal connectors fully.
- Verify no bent pins or loose terminal screws.
- Confirm the module matches the original mounting position.
Power-On & Test (10 min)
- Measure 24V DC at the customer I/O power terminals before reconnecting field wiring.
- Power up the controller and check for power supply faults.
- Verify customer I/O circuits receive stable 24V DC.
- Record label data, output voltage, and controller status.
Troubleshooting Quick Reference
| Symptom | Likely Cause | First Check |
|---|---|---|
| No 24V DC at I/O terminals | Failed power module | Measure output with controller powered |
| Intermittent I/O power | Loose connector | Reseat backplane and terminal plugs |
| Controller reports power fault | Wrong slot or damaged module | Verify slot position and label |
| Low output voltage | Overload on customer I/O | Disconnect field loads and retest |
| Module overheats | Internal fault or poor seating | Check airflow, seating, and load current |
| Repeated fuse trips | Shorted field wiring | Inspect external 24V circuits |
Dimensions, Mounting & Wiring Notes
- Dimensions: Not standardized across all listings; measure from the original unit.
- Mounting: Internal IRC5 controller cabinet module; installed into a designated backplane slot.
- Terminal Notes: Confirm connector orientation before removal. Take photos of cable positions and terminal labels.
- Wiring Caution: Do not confuse this module with DSQC651, DSQC652, or safety I/O boards. It is a power supply for customer I/O, not a general-purpose digital I/O module.
FAQ
Is DSQC608 3HAC12934-1 still available new?
Not as regular OEM stock. Available units are typically new surplus, refurbished tested, or used. Condition is confirmed per batch.Can I use any IRC5 power module as a replacement?
No. The slot, connector type, output rating, and controller generation must match. Use the original label and ABB documentation to confirm compatibility.Is this a servo drive module?
No. Some third-party listings call it a servo drive, but more consistent references identify it as an IRC5 customer I/O power supply. Verify physically before installation.I have a DSQC651 — can it replace DSQC608?
No. DSQC651 is a DeviceNet I/O module, not an I/O power supply. They serve different functions inside the IRC5 cabinet.Do you test the module before shipping?
Yes. Each unit undergoes visual inspection, label verification, connector check, power-on test, and output voltage verification. Function is verified under test conditions.What is the lead time?
If in stock, shipment can usually be arranged within 1–3 business days. Non-stock items require separate confirmation.Can you supply the exact ABB datasheet?
Not directly. Always confirm electrical ratings, slot assignment, and connector definitions against the official ABB IRC5 documentation for your controller version.
