Pump Control Quick Guide
31
J37 (sec)
J36 (Hz)
Figure 4.5: Increase of the pump’s speed to disconnect the pump from the main supply
The exact point where the inverter will disconnect the pump from the main supply can be defined with
function code J41. The equation to find this point is:
Auxiliary pump’s disconnection frequency (Hz)
( )
191918
100
41
JJJ
J
+
−×=
For example:
J41 = 40 %
J18 = 50 Hz
J19 = 25 Hz
Auxiliary pump’s disconnection frequency (Hz)
( )
Hz35252550
100
40
=+
−×=
In this case, when the regulated pump is rotating at 35 Hz, the inverter will disconnect the pump from the
main supply.
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