Belimo VRP-M - Page 5

VRP-M VAV
Ready-to-connect system solution
www.belimo.eu Product information S4-VRP-M VAV • en • v2.0 • 11.2006 • Subject to changes 5 / 28
Electrical installation
Wiring diagrams: VAV operation Example 1:
With analogue reference signal
Example 2:
DC 0 ... 10 V with shut-off (CLOSED)
Conventional operation:
See pages 10 and 11 for a description of
functions such as control priority
AC 24 V
DC 24
V
~
T
+
_
T
4321 VRP-M
MPw
~
T
+
_
5 6 7
U5 z1 z2
VFP-...NM...-ST
VRP-M
Tool
4321 VRP-M
MPw
~
T
+
_
5 6 7
U5 z1 z2
VFP-...NM...-ST
VRP-M
Tool
+
DC 24
V
_
AC 24 V
DC 24
V
~
T
+
_
T
Example 3:
DC 0 ... 10 V with shut-off / parallel control
4321 VRP-M
MPw
~
T
+
_
5 6 7
U5 z1 z2
VFP-...NM...-ST
VRP-M
Tool
+
DC 24
V
_
AC 24 V
DC 24
V
~
T
+
_
4321 VRP-M
MPw
~
T
+
_
5 6 7
U5 z1 z2
VFP-...NM...-ST
VRP-M
Tool
+
DC 24
V
_
T
Example 4:
With bus control
Beispiel 5:
Typical application: MP with shut-off (CLOSED)
Bus control:
See pages 16 to 18 for a description of functions
MP
~
T
+
_
AC 24
V
DC 24
V
4321 VRP-M
MPw
~
T
+
_
5 6 7
U5 z1 z2
VFP-...NM...-ST
VRP-M
Tool
MP
~
T
+
_
AC 24
V
DC 24
V
4321 VRP-M
MPw
~
T
+
_
5 6 7
U5 z1 z2
VFP-...NM...-ST
VRP-M
Tool
Reference value input w
0 ... 10 / 2 ... 10 / adjustable
PP/MP communication
Volume flow actual value U5
0 ... 10 / 2 ... 10 / adjustable
Control input z
PP/MP communication
Volume flow actual value U5
0 ... 10 / 2 ... 10 / adjustable
CLOSED (shut-off)
ZU (Absperrung)
CLOSED (shut-off)
Reference value input w
0 ... 10
Note
– Supply via safety isolation transformer!
– We recommend routing connections 1, 2
(AC/DC 24 V) and 4 (MP signal) to accessible
terminals (floor distributor, control cabinet, etc.),
in order to simplify access with the VRP-M-Tool
for diagnostic and service work.
!