14
Electrical Connection
- continued -
Wiring diagram for control unit TRS 5-40 with closed-loop control
Attention
n
Wire equipment in series. Star-type wiring is not permitted!
n
Link screens of bus cables such that electrical continuity is ensured and connect them
once to the central earthing point (CEP).
n
To protect the switching contacts provide the circuit with a T 2.5A or 1.0 A fuse
(TRD 604, 72 hrs. operation)
n
If two or more system components are connected in a CAN bus system, provide the
first and the last device with a terminating resistor of 120 Ω (terminal C
L
/C
H
).
n
The CAN bus network must not be interrupted during operation!
Note that an interruption will cause an alarm.
Pump OFF with MAX control, relay 2
Terminating resistor 120 Ω
Twisted pair cable 24 V DC
Twisted pair cable CAN-Bus
Pump contactor
Fig. 7
L
K1
K1
N
1
16
2
17
3
18
4
19
5
20
6
21
7
22
8
23
9
24
10
25
11
26
12
27
13
28
14
29
15
30
MAX
°C
GESTRA
TRS 5-40
Channel 2
Actual value output 2
4-20 mA (optional)
Channel 1
Actual value output 1
4-20 mA (optional)
