Key facts
- Brand
- ABB
- Model
- ACS550-U2
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-07
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ABB ACS550-02 Drives (132 355 kW) ACS550-U2 Drives (250 550 hp) User Manual
This manual covers the ACS550‑02 and ACS550‑U2 adjustable‑speed AC drives, detailing safety instructions, electrical installation planning, mechanical mounting, wiring, and commissioning procedures. It also includes extensive information on control panels, application macros, parameter settings, embedded fieldbus options, and diagnostic features.
Safety warnings emphasize the presence of dangerous voltage, proper handling of EMC filters and varistor networks, and safe lifting of the heavy drive units. Installation guidance addresses frame size selection, cable routing, and grounding. Operational sections describe start‑up, I/O control, ID‑Run, and maintenance, while the technical data section lists ratings, dimensions, and compliance information.
ABB ACS550-U2 specifications
| Power rating | 132–355 kW (250–550 hp) |
|---|---|
| Frame size | R7 or R8 |
| Maximum DC‑capacitor charging cycles | 5 in ten minutes |
| EMC filter handling on IT systems | Disconnect filter (R7) and varistor network (R7,R8) |
Source: ABB ACS550-02 Drives (132 355 kW) ACS550-U2 Drives (250 550 hp) User Manual
All ABB ACS550-U2 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Disassembly, diagnostics and part numbers, for repair.
Questions answered in these manuals
What are the main safety warnings for the ACS550 drives?
The manual warns of dangerous voltage on power terminals, the need for qualified electricians, the presence of voltage even when the motor is stopped, the requirement to disconnect EMC filters on certain power systems, and the heavy weight of the drive requiring lift lugs only.
From: ABB ACS550-02 Drives (132 355 kW) ACS550-U2 Drives (250 550 hp) User Manual
How should the EMC filter be disconnected when installing the drive on an IT system?
Disconnect the EMC filter (frame size R7) and the varistor network (frame sizes R7 and R8) before connecting the drive to an IT (ungrounded) or corner‑grounded TN system.
From: ABB ACS550-02 Drives (132 355 kW) ACS550-U2 Drives (250 550 hp) User Manual