Variable Frequency Drives
Greenheck packages a wide range of variable frequency drives (VFD's) with fan products to meet the performance needs of any ventilation system. VFD's are pre-programmed at the factory with fan parameters to ensure easy start-up in the field. VFD's ship loose and are available in a variety of enclosures. VFD's are only available when selected with a fan product.
OVERVIEW
VFD
ACH-180
- 3 Phase, 230VAC or 380/480VAC
- Controls motors up to 15 hp
- NEMA-1 enclosure (ships separate)
- ModBus RTU and BACnet communication
- No built-in impedance, requires line retractor
- 4 digital and 2 analog inputs
- 1 digital, 1 analog, and 1 relay outputs
ACH-255
- 1 Phase,
- 3 Phase,
ACH-580
- 3 Phase, 230VAC or 480VAC
- Controls motors up to 30 hp
- NEMA-1 standard enclosure, with optional NEMA-3R or NEMA-12
- ModBus RTU and BACnet communication
- 5% impedance, DC bus choke
- 6 digital and 2 analog inputs
- 0 digital, 2 analog, and 3 relay outputs