Connecting The Bus Coupler Electrically; General Notes On Connecting The Bus Coupler - Aventics DeviceNet Instrucciones De Servicio

BUS IN
X71
1 4
5
2 3
2 3
5
1 4
BUS OUT
X72
AVENTICS | DeviceNet | R402003659–BAL–001–AG
6.3

Connecting the bus coupler electrically

Applied electric voltage
Danger of injury from electric shock
O
Make sure the relevant system component is not under
pressure or connected to power when electrically connecting
modules to the valve system.
O
Do not insert or disconnect plug connectors under load.
Current flow in shield due to differences in potential
Compensating currents caused by differences in potential must not
flow over the shield of the bus coupler cable, as this will cancel the
shielding, which could damage the line and connected bus couplers.
O
If necessary, connect the grounding points for the system using
a separate line.
6.3.1

General notes on connecting the bus coupler

Use pre-assembled plug connections and cables to connect the
modules, if possible. See "Spare parts and accessories" on page 79.
O
Use A-coded plugs for the bus coupler.
O
If you do not use pre-assembled plug connections and cables,
connect the cable wires to the bus plugs (X71, X72) with the pin
assignment according to Table 5.
Table 5 Assignment X71 (BUS IN) and X72 (BUS OUT), M12, A-coded
Pin Signal Meaning
1 Drain Shield via RC on FE (internally)
1) 2)
2 V+ 24 V bus supply
1) 2)
3 V- Ground / 0V / GND bus supply
4 CAN_H CAN_H bus line (dominant high)
5 CAN_L CAN_L bus line (dominant low)
Housing Shield or function grounding
1)
The bus coupler is supplied with power via X10. All lines are looped through.
The bus state from V+ and V– is monitored internally.
2)
If V+ and V- have been incorrectly assigned, the LED will display a fault and the
device will stay in initialization status. Make sure that V+ and V- are assigned on
the bus plug.
WARNING
NOTICE
63
Assembly