13
Wiring
– continued –
Wiring diagram for temperature transmitter TRV 5-40
– continued –
Attention
n
Wire equipment in series. Start-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
Connect the screens of the sensor lines only once to the temperature sensor
(EMC cable gland).
n
If two or more system components are connected in a CAN bus the first and the last
item of equipment
must
be provided with a terminating resistor of 120 Ω (terminals
C
H
/C
L
). We recommend that you use the TRV 5-40 equipped with the connector fitted
with the terminating resistor either as first or as last equipment.
n
The CAN bus network must not be interrupted during operation.
In the event of an interruption an alarm message will be triggered.
Connecting the connector and jack
If you do not use the preassembled control cables connect the connector and the jacks for the CAN bus
lines in accordance with the wiring diagram.
Tools
n
Screwdriver for slotted screws, size 2.5, completely insulated to VDE 0680-1
n
Screwdriver for cross recess head screws, size 2
