Belimo NMV-D2M - N-P Diagnosis and Troubleshooting; N-P1 Index of recorded Test-Sequences; N-P1.1 VAV-Box Correct Function

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4A1PC-T V2.1 NMV-D2M-EN 11-02-04.doc PM VAV - Subject to technical changes
VAV – Module NMV-D2M
Practical tip – Quick setting
N-E2.1.1 Reference signal [w], Working range V’min ... V’max
Start point: DC 0.6 ... 30 V
Stop point: DC 2.6 ... 32 V
Range:
N-E2.1.2 Actual volumetric flow signal [U5]
Actual volumetric flow signal [U5], Working range 0...100% V’nom
Start point: DC 0.0 ... 8 V
Stop point: DC 2.0 ... 10 V
Range:
N-E2.1.3 Sensor connection
In bus mode (‘MP’ address 1...8) an active sensor or a switch can be
connected to the NMV-D2M reference input [w]. This input value can be
used in the higher level control system for VAV control, e.g. room tem-
perature or other applications. See 4. NMV-D2M Product Information for
further information.
- Connecting switches
In order to allow the NMV-D2M to evaluate the status of a connected
switch reliably the start point of the working range must be properly set
first:
Start point: DC 0.6 V It is essential for the Start Point to be
set to 0.6 V
Stop point: DC 10 V
Reference signal function [w]
in the V’min ... V’max control range
for controlling the NMV-
D2M in CAV and VAV
applications

its signal form can be adapted by the mode or
variable setting
Actual volumetric flow signal [U5]
corresponds to 0...100% V’nom
indicates the current actual value of volumetric flow
is not affected by the V’min and V’max settings

its signal form can be adapted by the mode or
variable setting
0 10020 40 60 80
Volumetric flow
[%V'nom]
V'nom
Actual volumetric
flow signal U5 [V]
Start point Stop point
Mode:
- 0...10V
- 2...10V
- variable
Actual volumetric
flow signal U5
V'min V'max< modulating function >
0,0 0,5 10
0...10V
Shut-off
V'min
close
V'max< modulating function >
0,0 0,1 102,0
2...10V
V'min
close
V'max
< modulating function >
30,0 32,0
2,60,6
0,0 0,1
variable
Start point Stop point
Mode: