![Pentair Digitrace NGC-20-C-E Скачать руководство пользователя страница 10](http://html1.mh-extra.com/html/pentair/digitrace-ngc-20-c-e/digitrace-ngc-20-c-e_installation-operation-and-maintenance-instructions_1524976010.webp)
NGC-20 INSTALLATION MANUAL
10
Figure 2: connection diagram NGC-20-C(L)-E
W/B
W/B
R
R
R
R
PE
L1
N
PE
RS485 cable from
previous device
RS485 cable to
next device
To next NGC-20
Heating cable
PT100
temperature sensor
Only to be used for the LIMITER
PT100
temperature
sensor(s)
RTD 1
RTD 2
RS485
RS485 S
S
+
Li
Lo
Ni
No
PE
PE
PE
Lo
No
Internal RS485
end of line
termination
resistor
When the device is the last on the communication
line install a wire bridge between the - and
T terminal as shown by the dotted line
Alarm
3A Max
Heater
+
–
–
T
PE
RTD LIMITER
R
PE
R
PE
W/B
ü
www.ze-gmbh.de
[email protected]
ZIEGLER ENGINEERING