Rockwell Automation 1757-FFLDC4 ControlNet Foundation Fieldbus Linking Device Installation Instructions - Manual (Page 16)

16 ControlNet Foundation Fieldbus Linking Device
Publication 1757-IN022B-EN-P - August 2009
H1 Terminal Block Layout (catalog number 1757-FFLDC4 shown)
Power and Grounding
1. Insert the following wires into the corresponding connector and
tighten the screws to 0.34 N•m (3 lb•in):
• Chassis ground to connector 1 - CHASSIS GND
• 24V common to connector 2 - DC GND
• +24V DC input power to connector 3 - 24V DC (±20%)
2. Apply power to the linking device.
WARNING
If you connect or disconnect wiring while the field side power is on, an
electrical arc can occur. This could cause an explosion in hazardous location
installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
ATTENTION
Do not exceed 3 m (9.84 ft) total wiring length on the 24V DC power
connection.
H1-1
+ - + - + - + - + - + - + - + -
H1-2 H1-3 H1-4
1
CHASSIS GND 2
DC GND
3
24V DC (+20%)
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