Vacon 100 INDUSTRIAL - Page 174

vacon • 174 Parameters
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P3.13.7.1 ENABLE SP 1
P3.13.7.2 S
ETPOINT 1 MAX COMPENSATION
The sensor is placed in Position 1. The pressure in the pipe will remain constant when we have no
flow. However, with flow, the pressure will drop farther down in the pipe. This can be compensated
by raising the setpoint as the flow increases. In this case, the flow is estimated by the output fre-
quency and the setpoint is linearly increased with the flow as in the figure below.
Figure 67. Enable setpoint 1 for pressure loss compensation
P
T
P
T
9102.emf
Position 1 Position 2
Pressure
No flow
Wi
t
h
f
l
o
w
a
n
d
c
o
m
p
e
n
s
a
t
i
o
n
Pipe length
Setpoint
Max Freq and FlowMin Freq and Flow
Setpoint + Max compensation
Setpoint