Espa SPEEDRIVE Instruction Manual page 18

If the need is beyond the capacity of the pump A, pump B is activated. Both pumps sync speed to meet
-
demand (exchange rate set according to menu 10.4)
If the need exceeds the capacity of the pumps A + B, the pump C is activated. Three pumps sync speed to
-
meet demand.
And successively...
-
The operation mode is alternated. For each activation of the booster set, the order of start pumps is random. This
will equal the operation hours.
Installation and connections. Installation and connections.
Installation and connections. Installation and connections.
The Speedrive installation and electrical wiring is done as described in this manual.
The connection of the pressure transducer must be made solely on the "Master" Speedrive.
A 2-wire twisted and shielded cable 0.5mm2 section must make the communication between devices.
Adjust the micro-switches (
MASTER/SLAVE
Respect the polarity of the RS-485connection:
1
A B
Configuration. Configuration. Configuration. Configuration.
Set master Speedrive menus as follows:
figure 6 o figure 7
) as needed:
SWITCH 1
MASTER OFF
SLAVE 1 OFF
SLAVE 2 OFF
SLAVE 3 OFF
2 3 1 2
A B
AUXILIAR AUXILIARY PUMP Y PUMP
AUXILIAR AUXILIAR Y PUMP Y PUMP
Press ► (Adjust) for the adjustment of the parameters that govern to the
auxiliary pumps.
Ignore. Press ▼
Figure 9 Figure 9 Figure 9 Figure 9
SWITCH 2 SWITCH 3
OFF OFF
OFF OFF
OFF ON
OFF ON
3 1 2 3
A B
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SWITCH 4
OFF
ON
OFF
ON
1 2 3
A B