31
Press
¾
on the Hydrovar-
Smart
to change to
7.21.2
Fall Value
For calculation of the set pressure after start of pumps 2 to 4
ACTU. VALUE DEC.
0.15 BAR
Adjustable from 0,0 to pre-selected
Sensor range
determines the start-value of the 2
nd
pump and the
other following pumps.
(
Start-Value
= REQUIRED VALUE –ACT. VALUE DEC.)
Press
¾
on the Hydrovar-
Smart
to change to
7.21.3
Release frequency of the following controller
ENABLE SEQ. CTL.
48.0 Hz
Release of the follow-up pump only when the start-
value
is reached and the lead
Pump has reached the programmed frequency (Adjustable from 0.0 Hz to 70 Hz)
If you do not want to start a following pump this value has to be set higher than the
maximum frequency.
This parameter is also used to start a constant speed pump (when Simple Multicontr. is
set). When this frequency level is reached, the potential free contact of the relay X2/5 –
X2/6 will be closed.
Press
¾
on the Hydrovar-
Smart
to change to
Summary of Contents for HYDROVAR smart
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Page 44: ...44 12 Diagram of all Software parameters XYLEM...
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