Rockwell Automation Publication 1756-IN619E-EN-P - September 2019
7
ControlLogix Power Supply
Connect the Power
Use 2.5 mm2 (14 AWG) solid or stranded-copper wire that is rated at 90 °C (194 °F), or greater, 1.2 mm (3/64 in.) insulation maximum to connect
power. Tighten the terminals to a torque of 0.565 N•m (5 lb•in).
Connect the power as shown in the figure.
WARNING:
EXPLOSION HAZARD
If you connect or disconnect wiring while the field-side power is on, an electric arc can occur. This can cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
ATTENTION:
Do not wire more than one conductor on any single terminal.
Use 15 A time-delay type fuse in all ungrounded power connections.
IMPORTANT
The voltage input connections of the power supplies are auto-sensing.
You do
not
use a jumper, for example, a 120/240V AC jumper, when connecting external power to the power supply, as shown in the following figure.
Item
Description, AC Power Supplies
Description, DC Power Supplies
1
L1 (high side of line power)
DC+ (positive supply)
2
L2 (low side of line power)
DC- (negative supply return)
3
This terminal is not used and is capped to prevent use.
4
Protective Earth. Attach to chassis ground lug or ground bus. See the ControlLogix Chassis Installation Instructions, publication
, for details.
+
-
+
-
L1
L2
L1
L2
AC Power Supplies
DC Power Supplies
1
2
3
1
3
2
4
4