13
Channel
Channel
1
2
Relay
Relay
Relay Relay
1
2
3
4
27
16
1 2 3 4 5 6 7 8
17 18 19 20 21 22 23 24
9
25
10
26
11 12
28
13
29
14
30
15
23
25
MAX
°C
GESTRA
TRS 5-40
Electrical Connection
- continued -
Wiring diagram for control unit TRS 5-40
Fig. 6
L N
Connector with terminating resistor 120 Ω
Connecting plug with terminating resistor 120Ω
Central
earthing point
CEP
Control unit
NRS 1-4x
NRS 2-40
NRR 2-40
LRR 1-40
TRS 5-40
Operating unit
URB 2
Level/
conductivity
electrode
NRG x6-4x
LRG xx-4x
Temperature
transmitter
TRV 5-40
Wiring diagram for CAN bus system – example –
Fig. 5
Terminating resistor 120 Ω
S
Twisted pair cable 24 V DC
Twisted pair cable CAN-Bus
Return temperature
Channel 2
Actual value output 2
4-20 mA (optional)
Inlet temperature
Channel 1
Actual value output 1
4-20 mA (optional)
