18
ICC
6.2
Wiring Connections
Note that in order to power the unit, a power supply must also be installed. Refer
to section 5.1 for more information.
1. Mount the unit via the desired method (refer to section 6.1).
2. Connect the various networks to their respective plugs/terminal blocks.
Refer to Table 1 for the DeviceNet network terminal block pin assignments.
Ensure that any wires are fully seated into their respective terminal blocks,
and route the network cables such that they are located well away from any
electrical noise sources, such as adjustable-speed drive input power or
motor wiring. Also take care to route all cables away from any sharp edges
or positions where they may be pinched.
3. Take a moment to verify that the gateway and all network cables have
sufficient clearance from electrical noise sources such as drives, motors, or
power-carrying electrical wiring.
4. Connect the power supply to the gateway’s RS-485 terminal block on the
terminals labeled POWER and GND. Pay particular attention to the proper
polarity.
Table 1: DeviceNet Network Terminal Block Pin Assignments
Pin #
Signal
Description
1
V-
Negative bus supply voltage
2
CAN_L
CAN low bus line
3
SHIELD
Cable shield
4
CAN_H
CAN high bus line
5
V+
Positive bus supply voltage
6.3
Grounding
Grounding is of particular importance for reliable, stable operation.
Communication system characteristics may vary from system to system,
depending on the system environment and grounding method used.
The gateway has one logic ground located on the RS-485 terminal block, which
serves as the ground reference for both power and RS-485 communication
signals.
The DeviceNet network grounding is detailed in the specification. Please refer to
the DeviceNet specification (CIP Networks Library Vol. 3, CH8) for specific
grounding requirements.
