Description
Type
Service Tools
Service tool for parametrisable and communicative Belimo actuators /
VAV controller and HVAC performance devices
ZTH EU
Belimo PC-Tool, software for adjustments and diagnostics
MFT-P
Adapter to Service Tool ZTH
MFT-C
Electrical installation
!
Notes
• Connection via safety isolating transformer.
• The wiring of the line for BACnet MS/TP / Modbus RTU is to be carried out in
accordance with applicable RS485 regulations.
• Modbus / BACnet: Supply and communication are not galvanically isolated.
Connect earth signal of the devices with one another.
Wiring diagrams
BACnet MS/TP / Modbus RTU
1
2
3
5
6
7
D+
D
–
+
~
–
T
AC/DC
24
V
D+
D
–
1
2
3
5
6
7
D+
D
–
+
~
–
T
AC/DC
24
V
GND
Cable colours:
1= black
2 = red
3 = white
5 = orange
6 = pink
7 = grey
Signal assignement Modbus:
C1 = D– = A
C2 = D+ = B
Connection with passive sensor, e.g. Pt1000, Ni1000, NTC
1
2
+
~
–
T
3
5
6
7
Ni1000
PT1000
NTC
–28...+98°C
–35...+155°C
–10...+160°C
1)
850...1600 Ω
2)
850...1600 Ω
2)
200 Ω...60 kΩ
2)
MFT
D+
D
–
D–
D+
1) depending on type
2) Resolution 1 Ohm
Connection with active sensor, e.g. 0...10 V @ 0...50°C
1
2
+
~
–
T
3
5
6
7
MFT
D+
D
-
D-
D+
Possible voltage range:
0...32 V (resolution 30 mV)
NM24A-MOD
Damper actuator, modulating
communicative
hybrid mode, AC/DC 24 V, 10 Nm,
Accessories
www.belimo.com
NM24A-MOD • en-gb • 2018-04-26 • subject to changes
4