G2030-II-C
Mar ‘17
- 18 -
Variable Speed Drive
Your DV Systems ‘G Series’ Rotary Screw Compressor Unit may have been equipped with an optional ‘Variable
Speed Drive’, or ‘VSD’. A Compressor with an integral VSD can handle the constant loads for an extended period
of time (running at close to 100% duty cycle), but it can also run at slower speeds to accommodate lower air
demands at other times of the day.
Variable Speed Drives can reduce the overall energy costs associated with operating the Compressor Unit by
simply controlling the speed of the Motor and Air End to match consumption. As Rotary Screw Compressors
using the variable speed technology match the varying air demands and therefore have the ability to impact your
energy consumption, some energy providers have offered rebates when these Units are purchased. Consult your
local energy provider to determine if this applies.
Shown below is a ‘G Series’ Unit with a Variable Speed Drive.
VSD Interface
The VSD Controller Interface is shown at right. It
provides a means of operating, monitoring, and adjusting
the parameters of the Variable Speed Drive.
Please note that adjustments to the parameters of the
Variable Speed Drive should be made only by qualified
Technicians, or with the guidance of factory trained
personnel. Incorrect adjustments will affect the
performance of the Unit, and could result in damage to
the Drive.
Variable Speed Drive
‘CSC300’ Controller
Control Panel
