Brand: ABB
Category: Drives
Document Type: Manual
Language: EN
Manual for ACS550
Uploaded: April 20, 2026, 7:41 p.m.
Manual Publish Date: 2007-04-16
Warranty Information
Contact the factory or your local Authorized Service Center for replacement if the drive is not field repairable.
ACS550 User's Manual - Operation Summary
This manual provides comprehensive information for the installation, start-up, and operation of the ABB ACS550 adjustable speed AC drive. It covers:- Safety: Important warnings and notes for safe installation and operation.
- Installation: Step-by-step guide including preparing the mounting location, mounting the drive, and wiring.
- Start-up, Control with I/O and ID Run: Procedures for initial drive setup and control methods.
- Control Panels: Details on the various control panels available for the ACS550.
- Application Macros: Pre-defined configurations for different applications.
- Parameters: Comprehensive list and descriptions of all drive parameters.
- Embedded Fieldbus & Fieldbus Adapter: Information on integrating the drive into communication networks.
- Diagnostics: How to interpret diagnostic displays and correct faults or alarms.
- Maintenance: Recommended maintenance intervals and procedures.
- Technical Data: Specifications, ratings, dimensions, and environmental conditions.
Troubleshooting and error codes
| Fault Code | Description | Possible Causes and Actions |
|---|---|---|
| 1 | OVERCURRENT | Motor current too high. Check motor, load, and acceleration time. |
| 2 | OVERVOLTAGE | DC bus voltage too high. Check input voltage, braking resistor, and deceleration time. |
| 3 | UNDERVOLTAGE | DC bus voltage too low. Check input voltage and connection. |
| 4 | MOTOR PHASE LOSS | Motor phase is lost. Check motor connections and motor itself. |
| 5 | HEATSINK TEMP. | Heatsink temperature too high. Check cooling, ambient temperature, and motor load. |
| 6 | EXTERNAL DEVICE | External fault signal received. Check external fault source. |