Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers Installation - Manual (Page 11)

SmartGuard 600 Controllers 11
Publication 1752-IN001C-EN-P - January 2009
Ethernet Ground
Refer to the Industrial Automation Wiring and Grounding Guidelines, publication
1770-4.1 , for additional information.
Connecting a Power Supply
Power for the controller is provided via an external 24V DC power source. The
output hold time must be 20 ms or longer.
To comply with the CE Low Voltage Directive (LVD), DeviceNet connections and
I/O must be powered by a DC source compliant with safety extra low voltage
(SELV) or protected extra low voltage (PELV).
To comply with UL restrictions, DeviceNet connections and I/O must be powered
by DC sources whose secondary circuits are isolated from the primary circuit by
double insulation or reinforced insulation. The DC power supply must satisfy the
requirements for Class 2 circuits or limited voltage/current circuits defined in
UL 508.
The SmartGuard controller has three V/G terminal pairs that require a power
connection. There are two V0/G0 pairs, but because they are internally connected,
you need to only connect one V0/G0 pair. You can use the other pair to distribute
power to other devices.
TIP
R
The following Rockwell Automation 1606 power supplies are Class 2, SELV- and
PELV-compliant, and they meet the isolation and output hold-off time requirements of the
SmartGuard 600 controller:
•
1606-XLP30E
•
1606-XLP50E
•
1606-XLP50EZ
•
1606-XLP72E
•
1606-XLP95E
•
1606-XLDNET4
•
1606-XL60DR
•
1606-XLSDNET4