The following modifications may be made during configuration:
If you want the pumps to be exchanged every 24 hours and not at each restart, set DS_A2 at ON.
If you do not want protection against too rapid restarts, set DS_A3 at OFF.
If you do not want to use the pump P1 set DS_A7 at ON.
If you do not want to use the pump P2 set DS_A8 at ON.
If level probes are used and not floats, set DS_B4 at OFF
If a depth sensor is used, set DS_B7 at ON and position DS_B5 according to the desired scale.
7.12 Regulating the rated current of the pumps (Imax) and the pump starting and stopping
levels (only with depth sensor connected)
With a straight tip screwdriver, position the indices in the centre of the graduated scales, as shown, so that:
Imax indicates the rated current of the installed pumps, which you can find on the pump data plate.
SP represents the maximum level in the tank (LMAX) that you want the water to reach during normal
operation.
DP represents the minimum level in the tank (LMIN) that you want the water to reach during normal operation.
DP is expressed as a percentage of SP.
Attention, SP and DP have significance only if a depth sensor is used. For their meaning, refer to Figure
43. The scale adapting label must be applied on SP.
7.13 System operation:
Operation with 2 floats or level probes
The operating logic is the following:
Float or level probe connected to input B starts P1 and stops both pumps.
Float or level probe connected to input C starts pump P2.
Operation with 3 floats or level probes
The operating logic is the following:
Float or level probe connected to input B starts pump P1.
Float or level probe connected to input C starts pump P2.
Both pumps are stopped on the float or level probe connected to A.
Figure 42: Regulating the rated current SP and DP
Filling operation with 2 floats
Float or level probe on
Pump P1
B = CLOSED
Float or level probe
Pump P2
C = CLOSED
Table 8: Filling operation with 2 floats
Filling operation with 3 floats
Float or level probe on
Pump P1
B = CLOSED
Float or level probe
Pump P2
C = CLOSED
Table 9: Filling operation with 3 floats
ENGLISH
Start
Float or level probe
Float or level probe
Start
Float or level probe on
Float or level probe on
98
Stop
B = OPEN
B = OPEN
Stop
A = OPEN
A = OPEN