Advertenties
Beschikbare talen
Beschikbare talen
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.
•
Pump P1
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.
•
Pump P1
Pump P2
Note: the function with 3 floats is used in installations with deep narrow tanks that do not allow an ample travel of the
floats!
Note: in the Ebox version with display, the correct number of floats or level probes used is displayed automatically.
Operation with depth sensor and display
If a depth sensor is being used, with an Ebox with display, it will be possible to set independently the starting level of pump P1, of
pump P2, and the stopping level of both. In particular:
HA is the stopping level of the pumps P1 and P2
•
HB is the starting level of pump P1
•
HC is the starting level of pump P2
•
It will also be possible to set the alarm levels for maximum and minimum level. The minimum settable level (including the minimum
alarm level) cannot be lower than 15 cm. The maximum settable level (including the maximum alarm level) cannot be higher than the
tank height minus 5 cm. The various levels are separated from one another by a minimum of 5 cm.
Operation with depth sensor without display
In operation with a depth sensor, the parameters must be set with the Trimmers SP and DP, see Figure 42.
SP represents the maximum level in the tank (L
•
DP represents the minimum level in the tank (L
•
as a percentage of SP.
ENGLISH
Figure 42: Regulating the rated current SP and DP
Filling operation with 2 floats
Start
Float or level probe on B = CLOSED
Float or level probe C = CLOSED
Table 8: Filling operation with 2 floats
Filling operation with 3 floats
Start
Float or level probe on B = CLOSED
Float or level probe C = CLOSED
Table 9: Filling operation with 3 floats
) that you want the water to reach during normal operation.
MAX
) that you want the water to reach during normal operation. DP is expressed
MIN
Float or level probe on A = OPEN
Float or level probe on A = OPEN
92
Stop
Float or level probe B = OPEN
Float or level probe B = OPEN
Stop
Advertenties
