Vacon NX Series Applications Manual page 326

VACON · 326
f
out
f
max
(par.
ID102)
f
min
(par. ID101)
Minimum of the
actual value
Start/stop
control of
Stop
the AC drive
Aux. drive 1
Aux. drive 2
Fig. 82: Example of variable speed drive and two auxiliary drives with bypassed PID controller
1021 ANALOGUE INPUT SELECTION FOR INPUT PRESSURE MEASUREMENT 7 (2.9.17)
Use this parameter to select the analogue input signal for which you want to set the input
pressure measurement.
1022 INPUT PRESSURE HIGH LIMIT 7 (2.9.18)
Use this parameter to set the high limit for the analogue input you selected for the input
pressure measurement.
1023 INPUT PRESSURE LOW LIMIT 7 (2.9.19)
Use this parameter to set the low limit for the analogue input you selected for the input
pressure measurement.
1024 OUTPUT PRESSURE DROP VALUE 7 (2.9.20)
Use this parameter to set the decrease in output pressure when the input pressure goes
below the input pressure low limit.
In pressure increase stations there may be need for decreasing the output pressure if the
input pressure decreases below a certain limit. The input pressure measurement which is
needed is connected to the analogue input selected with parameter ID1021.
9
Start freq. of Start freq. of
the aux. the aux.
drive 1 drive 2
(par. ID1002) (par. ID1004)
Stop freq. of the aux.
drive 1 (par. ID1003)
Start
Start
Stop
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
PARAMETER DESCRIPTIONS
Stop freq. of the aux.
drive 2 (par. ID1005)
Start
Stop
Actual
valve
Maximum
of the actual
value