Line of variable frequency drives (VFDs) enhanced with an energy management bypass (EMB) option
An energy management bypass (EMB) feature has been added
to the line of variable frequency drives (VFDs). The new option assures uninterruptible operation of customers’ HVAC systems, even if the drive is taken out of the loop for reprogramming or maintenance operations. With integrated real time ANSI-grade power metering and BACnet communications, the EMB accurately measures consumption in both VFD and bypass mode to +/- 1%. The EMB also provides all the advanced motor protection in bypass mode that would typically only be available through the VFD (OV/UV, ground fault, phase loss, phase reversal, and belt loss protection). The VFDs are available in a range of packages from 1HP to 400HP.
