The ABB ACH550 is a complete dedicated low voltage AC drive especially for HVAC applications. The drives are designed to meet the HVAC market requirements including harmonics and EMC standards, and for easy integration with building management systems straight out of the box. They feature built-in control programs specifically designed for HVAC applications like cooling tower fans, supply and return fans, and booster pumps and condensers. With built-in PID control, native BACnet communication, timers, real-time clock and a calendar, ABB drives provide flexible solutions for a wide range of HVAC needs.

The drives are manufactured at our regional factories around the world and are available directly from our central stocks.

A wide range of global drive services are available for the ACH550 and service contracts can be tailored to meet your unique needs.
 

Supply connection

Voltage and power range

3-phase, 380 to 480 V, +10/-15% (0.75 to 355 kW)

3-phase, 208 to 240 V, +10/-15% (0.75 to 75 kW)

1-phase, 208 to 240 V, +10/-15% (50% derating)

auto-identification of input line

Frequency                           

48 to 63 Hz

Efficiency at rated power: 98%

Environmental limits

Ambient temperature

Transportation and storage: -40 to 70 °C

Operation: -15 to 50 °C (no frost allowed)

Altitude/Output current

Rated current available at 0 to 1000 m

Relative humidity

Lower than 95% (without condensation)

Protection classes

IP21 and IP54

Inputs and outputs

2 analog inputs, voltage signal, current signal, potentiometer reference value, 2 analog outputs, internal auxiliary voltage: 24 V DC ±10%, max. 250 mA, 6 digital inputs , 3 relay outputs

Communication

Protocols as standard (RS 485): BACnet MS/TP, Modbus RTU, N2 and FLN

Available as plug-in options: BACnet/IP router, LonWorks, Ethernet etc.

Available as an external option: Ethernet adapter for remote monitoring

Protection functions

Overvoltage and undervoltage controllers, earth-leakage supervision, motor short-circuit protection, output and input switch supervision, overcurrent protection, phase-loss detection (both motor and line), underload and overload supervision (belt-loss detection), stall protection

Product compliance

Harmonics

IEC/EN 61000-3-12

Standards and directives

Low Voltage Directive 2006/95/EC

Machinery Directive 2006/42/EC

EMC Directive 2004/108/EC

Quality assurance system ISO 9001 and

Environmental system ISO 14001

CE, UL, cUL, and GOST R approvals

Galvanic isolation according to PELV

RoHS (Restriction of Hazardous Substances)

EMC (according to EN61800-3)

Class C2 (1st environment restricted distribution) as standard