Rockwell Automation 6181F_P Series E Integrated Display Computers User Manual - Manual (Page 29)

Rockwell Automation Publication 6181P-UM002D-EN-P - February 2014 29
Installation Chapter 2
3. Connect the DC barrel connector to the power input jack (C).
4. Twist the locking ring clockwise to secure it in place (D).
5. Connect the AC power cord to a power source.
6. Apply 100…240V AC power to the computer.
Connect DC Power to Performance and Non-display Computers
Performance and non-display computers with catalog numbers ending in DC
have a DC input terminal block for connecting to a 18…32V DC power source.
DC power models support operation from either a SELV or PELV power source.
A pre-installed ground bus strip lets you connect the DC common and
functional ground terminals together. This is to support some cases of SELV
where grounding at the computer is required by the end user.
The power supply is internally protected against reverse polarity.
Follow these steps to connect the computer to a DC power source.
1. Turn off the main power switch or breaker.
2. Verify that the DC power wires meet these requirements:
• Material: Stranded copper
• Wire gauge: 0.325…0.823 mm
2
(22…18 AWG)
SHOCK HAZARD: Connect the AC power cord to a power source with an
earth ground. Failure to follow this warning can result in electrical shock.
ATTENTION: Use a Class 2/SELV isolated and ungrounded power supply as
input power to the computer. This power source provides protection so that
under normal and single fault conditions, the voltage between the conductors
and Functional Earth/Protective Earth does not exceed a safe value.
C
D