DAB PUMPS ACTIVE DRIVER M/T 2.2 Instruction For Installation And Maintenance - Page 6

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6.3

The ACTIVE DRIVER is already provided with current protections. If a magnetothermal switch is

installed in line, it must have a max. capacity of 16A.

6.4

The connection of the line to the ACTIVE DRIVER must include the earth line. The total earth

resistance must not exceed 100 Ohm.

6.5

To protect the system it is recommended to install a differential switch with correct

dimensions, type:

Class A, with adjustable dispersion current, selective, protected against sudden

tripping.

The automatic differential switch must be marked with the following two symbols:

HYDRAULIC CONNECTIONS

7.1

Always install a check valve on the pipe upstream from the ACTIVE DRIVER.

For the purposes of operation of the ACTIVE DRIVER it does not matter whether the valve is fitted

on the suction or on the delivery of the pump.

7.2

The hydraulic connection between the ACTIVE DRIVER and the electropump must not have any

derivations.The dimensions of the pipe must be suitable for the electropump installed.

7.3

The ACTIVE DRIVER works at constant pressure. This regulation is appreciated if the hydraulic

system downstream from the system is of suitable dimensions.

Systems made with pipes that have too narrow a section introduce load losses which the appliance

cannot compensate; the result is that the pressure is constant on the device but not on the user.

When electrical and hydraulic installation have been completed, supply power to the system and check the

direction of rotation of the electropump. If it is not correct, invert two phases on the motor terminal board.

CHARACTERISTICS – INTERPRETATIONS – OPERATION

The ACTIVE DRIVER is an innovative integrated system for controlling electropumps with variable speed, able to

keep a constant pressure while the flow rate varies.

The ACTIVE DRIVER is composed of an inverter, a pressure sensor and a flow sensor.

With the exclusion of models M/M 1.1 and M/T 1.0 the ACTIVE DRIVER is provided with 3 inputs and 2 outputs so

as to be able to realise certain interface solutions with more complex installations.

Figure 1 shows the logical function diagram for the connection of the user input terminals.

Figure 2 shows the logical function diagram for the connection of the alarm output terminals.

Figure 3 shows the connection diagram for 2 ACTIVE DRIVER units, for the exchange function.

8.1

CHARACTERISTICS AND INTERPRETATIONS

Ref.

L – N

SINGLE-PHASE

R – S – T

THREE-PHASE

U - V- W

THREE-PHASE

R – S

SINGLE-PHASE

Power supply terminal: + 12V DC – 50Am.

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