DAB PUMPS ACTIVE DRIVER M/T 2.2 Instruksi Untuk Instalasi dan Pemeliharaan - Halaman 8

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8.3

OPERATION : PARAMETERS FOR THE USER

Access keys MODE & SET for 2 seconds

8.3.1 SP : Setting the set point pressure ( in bar )

From normal operating status, hold down the MODE and SET keys simultaneously until the letters

SP appear on the display. In these conditions the + and – keys allow you respectively to increase and

decrease the desired pressure value.

The regulating range is from 1.0 to 6.0 bar for the A.D. M/M 1.1 and from 1.0 to 9.0 bar for the other models.

Press SET to return to normal operating status.

As well as the working pressure the ACTIVE DRIVER allows you to set two other values:

RP: expresses in bars the decrease in pressure, with respect to SP, that makes the pump restart.

DP: expresses in bars the desired decrease in pressure at low flow rates.

The three parameters are related to each other.

Diagram for regulating pressure according to in flow rate

Example:

SP = 4.5 bar

DP = 1.0 bar

RP = 0.7 bar

During normal operation the system will be pressurised at 4.5 bar.

In case of low flow rates (losses) the system will be pressurised at 3.5 bar.

The electropump restarts when the pressure falls below 2.8 bar.

8.4

OPERATION : PARAMETERS FOR THE INSTALLER

Access keys MODE & SET & - for 5 seconds

If an error or malfunction occurs during this phase, the display is not changed. Depending on

the type of error, the electropump may switch off. However it is still possible to make the

desired calibration. To know the type of error that has occurred you must return to the mode

in which you see the operating status by pressing the SET key.

From normal operating status, hold down the MODE & SET & - keys simultaneously until the letters "rC"

appear on the display. In these conditions the + and – keys allow you respectively to increase and decrease

the value of the parameter while the MODE key allows you to move on to the next parameter in cyclic mode.

Press SET to return to normal operating status.

8.4.1

rC : Setting the rated current of the electropump (excluding A.D. M/M 1.1)

This parameter must be set the same as the current on the motor data plate (Amps) in the configuration

in which it is used (power supply 230V for A.D. M/T - power supply 400V for A.D. T/T).

8.4.2

rt : Setting the direction of rotation (excluding A.D. M/M 1.1)

Possible values: 0 and 1

If the direction of rotation of the electropump is not correct, it is possible to invert the direction of

rotation by changing this parameter.

If it is not possible to observe the direction of rotation of the motor, proceed as follows:

Open a user and observe the frequency (parameter Fr with MODE key from GO) and the current

(parameter C1).

Without changing the amount of water taken, change the parameter rt and observe the frequency Fr

and the current C1 again.

The correct parameter rt is the one which, with the same amount of water taken, requires a lower

frequency Fr and current C1.

ENGLISH

5 l/min

Pressure set in the system

Reduced pressure for low flow rates

Electropump restarting threshold