Installation
39
Connect Communication
REFUsol 50K-3T
982081 | 03 | 2021-03
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4.11.1Connect RS485 Communication
✅
The connection box cover is open.
1. Slightly loosen the union nut of the PG screw con
-
nection.
2. Remove the blind plug from the PG gland and feed
the shielded network cable through the cable gland
and seal.
3. Use a crimping tool to assemble the network cable
with an RJ45 plug. Make sure that the PIN assign
-
ment is correct.
Fig. 38: Pin assignment RJ45 plug
4. Insert the RJ45 connector into the RS485 port of the
communication board until it locks securely.
5. Check secure connection of the RJ45 plug.
6. Tighten the union nut of the PG screw connection.
7. Check the tightness and the strain relief of the PG
screw connection.
4.11.2Connect Digital Inputs IN1 to IN4
✅
The connection box cover is open.
Pin Colour
RS485 function
1
white and orange RS485
B-
, RS485 differential signal-
2
orange
RS485
A-
, RS485 differential
3
white and green
RS485
A-
, RS485 differential
4
blue
RS485
A-
, RS485 differential
5
white and blue
RS485
B-
, RS485 differential signal-
6
green
RS485
B-
, RS485 differential signal-
7
white and brown NC
8
brown
NC
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8