Carel DP, User Manual, Page: 61 / 76

25
ENG
DP S030220660 rel. 2.3 - 06.12.2021
Nota:
• with output configured for 0 to 1 Vdc or 0-10Vdc the load must be >1K Ω;
• with output configured for 4 to 20 mA the load must be < 100 Ω;
• with NTC resistive output the two signals are isolated from the reference M(G0).
Wiring the sensor to the instrument
+Vdc
GND
Bn
Bm
+ (
G
)
out T M out H
Fig. 4.e
Wiring the sensor to the instrument when an additional external transformer is required
12/24 Vac
230 Vac
Trasformatore / Transformer
TRA12/TRA24
+ (
G
)
out T M out H
+Vdc
GND
Bn
Bm
Fig. 4.f
Wiring the sensor with voltage or current output
Sensor connection with voltage or current
output and power supply directly from the
controller. The power supply capacity (maxi-
mum current) of the controller must be eva-
luated. For distances > 10 metres, the 4...20 mA
current connection should be used, to avoid
measurement errors due to the drop in the
reference M (G0). Sensor connection with se-
parate power supply via transformer, used to
avoid measurement errors due to current on
reference M(G0) connection or for power sup-
ply problems on G0 with earth connection.
+Vdc
GND
Bn
Bm
+ (
G
)
out NT
C
out NT
C
M out H
Fig. 4.g