nVent Raychem NGC-20-C-E Installations-, Betriebs- Und Wartungsanleitung Seite 10

L1
N
PE
RS485 cable from
previous device
When the device is the last on the communication
line install a wire bridge between the - and
W/B R R
R R
W/B
W/B R
PT100
temperature
sensor(s)
Figure 2: connection diagram NGC-20-C(L)-E
10 | nVent.com
T terminal as shown by the dotted line
PE RTD 2
PE
RTD 1
PE
R PE RTD LIMITER
PT100
temperature sensor
Only to be used for the LIMITER
Li Lo
RS485 S
+ –
RS485
S + – T
Internal RS485
end of line
termination
resistor
Ni No PE PE PE Lo No
Heater
Alarm
3A Max
Heating cable
To next NGC-20
RS485 cable to
next device