DAB PUMPS ACTIVE DRIVER M/T 1.0 Інструкція з монтажу та обслуговування - Сторінка 9

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8.4.3

od: Setting the operating mode of the ACTIVE DRIVER

Possible values: 1 and 2

The ACTIVE DRIVER leaves the factory in mode 1 for working without expansion vessels or with

small vessels. If there is an expansion vessel near the ACTIVE DRIVER, with a half-inch or larger

fitting, you must change to mode 2.

8.4.4

rP: Setting the fall in pressure for restarting

Expresses, in bars, the fall in pressure that makes the pump restart.

rP may be set from a minimum of 0.1 to a maximum of 1.5 bar.

rP has a limitation system depending on the combination of the values SP and dP so that there is always

a minimum restarting pressure of 0.3 bar.

8.4.5

Ad : Setting the interconnection address (excluding A.D. M/M 1.1)

With the ACTIVE DRIVER system it is possible to realise booster sets composed of two elements

communicating by means of serial interconnection (see fig.3). In this type of installation it is necessary

for the two units to have a different identifying address (Ad).

The admissible values are: "- -", 1 and 2:

When "Ad" is "- -" the communication is disabled.

When "Ad" is "1" it is called Secondary ACTIVE DRIVER (booster).

When "Ad" is "2" it is called Primary ACTIVE DRIVER (leader).

Attention: If two interconnected ACTIVE DRIVER units are set with the same "Ad" value, the

communication does not work and there may be malfunctions in regulation.

When the communication does not work (due to incorrect setting of the "Ad" value, for wiring

problems, or other reasons), the two ACTIVE DRIVER units will work as though they were two

completely independent machines, but they will indicate the impossibility of dialogue by making the

display blink when the states "Go" or "Sb" are shown.

When the "Ad" values are correctly set, some regulating parameters are aligned. In particular the

secondary ACTIVE DRIVER copies the following values from the primary ACTIVE DRIVER:

SP : Setting of the set point pressure.

rP : Setting of the restarting pressure drop.

Eb : Enabling of the booster pump.

CM : Method of exchange.

dP : Setting of the pressure differential at low flow rates.

P1 : Setting of the input function 2 set point P1.

Note: During operation it is possible to change all the parameters of the ACTIVE DRIVER on each of

the two machines.

8.4.6

Eb : Enable booster (pre-set value 2) (excluding A.D. M/M 1.1)

When two ACTIVE DRIVER units are interconnected with each other, in the case where only one

ACTIVE DRIVER is not able to satisfy the user, there is the possibility of activating the two

electropumps at the same time.

Eb = 1 :

The leader-booster operating mode is disabled, so only one electropump at a time will

be active.

If during operation the leader electropump is not able to satisfy the user, the booster

electropump will not be switched on.

Eb = 2 :

The leader-booster operating mode is enabled, so 2 electropumps can be activated at the

same time.

If during operation the leader electropump is not able to satisfy the user, the booster

electropump will also be switched on and will work at the maximum frequency, while

the leader machine will continue to modulate the rotation frequency according to the

user.

ENGLISH