ITT BPHV User Manual
Page 11
11
HYDROVAR VERSIONS
INTRODUCTION
The
HYDROVAR Concept consists mechanically of two main parts, the Power Unit and the
Control Card. In its basic configuration (consists only of the Power Unit) the HYDROVAR can be used as a
“Basic Inverter” without the need of the Control Card. In that form the HYDROVAR can be used as a sequence pump in
a multi pump system, with at least one master inverter.
By extending this “Basic Inverter” with the additional Control Card and LCD display, the HYDROVAR
“Master Unit” is able
to work in different modes and can be extended by the implementation of different modules.
STANDARD OPTIONAL FEATURES VERSIONS
CASCADE SERIAL (MASTER + BASIC)
In this mode there are various possibilities to combine the different versions of the HYDROVAR.
In general, each of the pumps is equipped with a HYDROVAR unit. Each pump of the system (extended up to 8 pumps) is
equipped with a HYDROVAR unit (at least one
“Master Inverter” and the others can be
“Basic Inverters” in order to ensure a proper control of the system) which are connected via the serial interface.
Minimum requirement: One “Master Inverter” and the others equipped with “Basic Inverters”.
The whole control is performed via the “Master Inverter” every time, but also an automatic change over of the lag pumps
to achieve even operating hours is possible.
Following versions are available:
•
Power size 3 HP up to 15 HP motor mounted single phase and/or three phase power supply.
-
PHV: one pump with wiring, fused disconnect, master Hydrovar drive, transducer, conduit.