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3 Product Overview
3.1 Hardware Configurations
The HYDROVAR Modul 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 “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, but also as
a simple soft starter for single pump applications.
By extending this “Basic Inverter” with the additional Control Card, the HYDROVAR is able
to work in different modes and can be extended by the implementation of different
modules.
General Versions:
Basic Inverter – HYDROVAR in its simplest configuration, consists only of the power unit.
Application: Single pump operation as soft-starter, sequence pump in a multi pump system
Master Inverter – Full featured HYDROVAR including the high level Control Card (supports
also the optional modules like the optional “Relay Card” and all special software features).
Application:
- Single pump control including all extended features
- Multi pump system of “Master” and “Basic Inverters” (up to 8 pumps)
- Multi pump system equipped with up to 8 “Master Inverters”
- in combination with the optional “Relay Card” up to 5 fixed speed pumps can be
controlled with this kind of configuration
Single Inverter – HYDROVAR with Control Card developed only for Single pump operation
and less features in comparison with the Master Inverter. Additionally the Single Inverter
isn’t able to support any optional Modules like the Relay Card.
Application:
- Single pump control
3.2 Operation Modes
3.2.1 Actuator (for single pump operation only!)
In this mode the HYDROVAR operates as an Actuator with external speed signal or
switching between 2 programmed frequencies by using the corresponding digital input.
For this application the HYDROVAR operates like a standard frequency converter when an
external controller is used.
!!! Please consider that this mode is only possible by using a HYDROVAR Master or
Single Inverter and is limited for single pump operation only!!!
3.2.2 Controller
This mode should be selected if only one HYDROVAR pump is in operation and there is no
connection to any other HYDROVAR via RS485 interface.
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