Name: Xylem hydrovar
Brand: Xylem
Rating: 5 (1 reviews)

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Controller (Default Setting):

Select this mode when only one HYDROVAR Master/Single Drive is used and there is no connection to any

other HYDROVAR via RS-485 interface.

Cascade Serial:

Selected if multiple HYDROVAR controlled pumps operate together via the RS-485 interface.

The standard application for this mode is a multi-pump system with up to 8 pumps, each controlled by a

HYDROVAR Master Drive or a combination of Master and Basic Drives. Advantages: reliability, lead/lag for

balanced usage and wear and tear, automatic alternation in the event of a drive failure (duty standby).

Cascade Synchron:

The Synchronous Controller mode is similar to cascade serial mode. The difference is that all pumps in the

multi pump system run at the same frequency.

Advantages: In the synchronous mode the pumps can operate in a better efciency range and the system

may provide additional energy savings compared to standard Cascade Serial mode.

Actuator: (For single pump operation only!)

Actuator mode is used if a xed speed setting is required or an external speed signal is connected to con-

trol the speed of the drive.

In this mode, the HYDROVAR does not control the set value but runs the connected motor at a frequency

proportional to the input signal from the analogue input, or is programmed on the HYDROVAR. The follow-

ing input signals can be used:

X3/13: Voltage signal input (Required value 1) 0-10V 0 - MAX.FREQ.[0245]

X3/15: Voltage signal input (Required value 2) 0-10V 0 - MAX.FREQ.[0245]

X3/18: Current signal input (Required value 1) 4-20mA 0 - MAX.FREQ.[0245]

0-20mA 0 - MAX.FREQ.[0245]

X3/23: Current signal input (Required value 2) 4-20mA 0 - MAX.FREQ.[0245]

0-20mA 0 - MAX. FREQ. [0245]

• Manual switching between the analogue inputs can be controlled by the corresponding digital inputs.

• The frequency varies along the programmed Ramps 1 (accelerating) and 2 (decelerating). The functions

thermal protection and external ON/OFF remain active.

• The functions “External ON/OFF”, “Motor Overheat”, “Lack of water” and all other internal protections still

work.

PROGRAMMING

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