DSQC663
HV Main Drive Unit · 3HAC029818-001 · MDU-790A
Lifecycle note: Preserve the robot-specific drive configuration. Main-drive and additional-drive units are different service items; replacement and testing require qualified personnel.
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3HAC029818-001一次Product Condition
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+86-18020776786High-Voltage Main Drive Unit · IRC5
ABB DSQC663, order 3HAC029818-001, is an HV main drive unit identified as MDU-790A in ABB IRC5 application documentation. It belongs to the robot drive system, not the power-distribution-unit product category. Procurement should distinguish the drive-unit identity from other DSQC modules installed in the same controller.
ABB lists a net weight of 12.33 kg and dimensions of 430 mm length/depth, 179 mm height and 335 mm width. Robot-specific drive-position mapping remains important: the documented IRB 2400 sequence differs from the IRB 2600, IRB 4400 and IRB 4600 sequence. A shared drive-unit designation does not justify transferring another robot variant’s connection schedule.
For integration and MRO replacement, retain the controller backup, robot variant, unit identification and original cable labels in one service record. Plan handling around the net mass and the complete packaged dimensions. Commissioning and any high-voltage work must be performed by qualified personnel using the applicable ABB instructions and site isolation procedure; a matching label alone is not a functional acceptance test.
| Manufacturer | ABB |
|---|---|
| Model | DSQC663 |
| Order number | 3HAC029818-001 |
| Module type | High-voltage main drive unit (HV MDU) |
| Drive-unit family | MDU-790A |
| Controller platform | IRC5 |
| Net weight | 12.33 kg |
| Net length / depth | 430 mm |
| Net height | 179 mm |
| Net width | 335 mm |
| Robot families listed by ABB | IRB 2400, IRB 2600, IRB 4400, IRB 4600, IRB 6400R, IRB 660, IRB 66XX, IRB 7600 |
| Power-stage template designations | INV_31_54 and INV_17_26 in the documented MDU-790A profiles; these are identifiers, not current ratings |
| IRB 2400 circuit sequence | For drive positions M1–M6: M1, M2, M4, M6, M3, M5 (ABB application manual mapping) |
| IRB 2600 / 4400 / 4600 circuit sequence | For drive positions M1–M6: M1, M4, M2, M5, M3, M6 (ABB application manual mapping) |
Retain the robot-specific drive mapping, controller configuration and identification of each motor connection. Replacement requires the applicable ABB service procedure.
The manufacturer mapping for IRB 2400 differs from the mapping shown for several other robots using MDU-790A. An integrator should identify the robot variant and preserve its documented drive-position assignments rather than copy a neighbouring cell’s schedule. These table references are not instructions to reconnect an energized controller.
No. Here they are power-stage template identifiers from the ABB application manual. Do not turn the numbers embedded in those identifiers into voltage or current specifications. Select electrical ratings from the applicable controller documentation and physical unit markings.
Do not substitute solely because the names contain 790A. ABB documentation distinguishes main and additional drive-unit entries. A supplier should quote the requested DSQC663 / 3HAC029818-001 identity, and treat a proposed alternative as a separate engineering approval item.
No. The application manual contains robot-specific profiles, including different populated positions for certain four-axis robots. The system integrator should work from the installed robot’s configuration rather than infer an identical allocation from the number of positions in another profile.
It is the manufacturer’s net product weight. The dispatch team must measure gross weight after protective packaging, and use the actual carton or crate dimensions for freight booking. Keep net and shipping weights separate in the purchase and receiving records.
They describe length/depth, height and width respectively. They do not include a guaranteed cable-bend allowance, service withdrawal envelope or packaging clearance. A layout engineer should compare the installed mounting arrangement and access space before treating the dimensions as proof that the spare fits.
Request a report tied to each individual unit, identifying the controller or test fixture, configuration and acceptance procedure used. A generic power-on statement for a lot does not establish the performance of each robot drive channel. Agree the inspection and return criteria before accepting the shipment.
No. A family-level listing narrows the search but is not a revision-by-revision interchangeability statement. An MRO buyer should provide the precise robot variant and controller build so the replacement decision can be checked against the installed system rather than the family name alone.
Send the model, complete part number, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
Documentation status: Verification Required. Manufacturer product identity is verified; a downloadable model-specific PDF has not been validated for attachment.
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