This is a PDF document describing the technical specification of an adjustable speed drive
The ABB ACS550 Adjustable Speed Drive (ASD) is designed for constant‑torque applications with a power range from 1 HP to 550 HP and input voltages from 208 VAC to 600 VAC. It provides V/Hz, Sensorless Vector, and Flux Vector control modes and meets ISO 9001, ISO 14001, OSHAS 18001, UL, and CE certifications.
The manual covers functional specifications, control panel features, digital and analog I/O, serial communications, protective functions, installation guidelines, start‑up procedures, and warranty information, providing engineers with the data needed for selection, integration, and maintenance of the drive.
| Power Range | 1 HP to 550 HP |
|---|---|
| Input Voltage Range | 208 VAC to 600 VAC |
| Efficiency | ≥ 98 % at full speed and load |
| Over‑voltage Trip Level | Minimum 30 % above nominal |
| Input Power Factor | 0.98 (fundamental) |
| Operating Temperature | -15 °C to 40 °C |
| Enclosure Rating | UL Type 1 (NEMA 1) listed |
| Digital Inputs | Six (6) inputs, 12‑24 VDC, PNP/NPN |
| Digital Outputs | Three (3) form C relay contacts |
| Serial Communication Port | RS‑485 (standard), Modbus RTU protocol |
| Certifications | ISO 9001, ISO 14001, OSHAS 18001, UL, CE |
The drive is certified to ISO 9001:2000, ISO 14001:2004, OSHAS 18001:1999, UL listed, Canadian UL listed, and complies with the EU CE directives.
It can operate from 208 VAC up to 600 VAC on a three‑phase supply.
The drive achieves an efficiency of at least 98 % at full speed and full load.