Rockwell Automation VersaView 1200P Integrated Display Computers for Hazardous Locations - Manual (Page 18)

18 VersaView 1200P Integrated Display Computers for Hazardous Locations
Publication 6183H-IN001E-EN-P - July 2007
Connect dc Power
Computers with an integrated 24V dc power supply support these electrical ratings:
• 18…32V dc (24V dc nominal)
• 6.3 A at 24V dc
• 5.8 A at 24V dc (non-display dc product)
The power supply is internally protected against reverse polarity.
The terminals of the dc power supply are for factory wiring only. The suitability of
the connections shall be determined in the end use equipment.
When wiring to the dc power terminal block, use 0.823 mm
2
…2.08 mm
2
(18 AWG…14 AWG) stranded copper wire.
Follow these steps to connect dc power.
1. Secure the dc power wires to the terminal block screws.
2. Secure the ground wire to the GND terminal screw.
3. Apply 24V dc power to the terminal.
ATTENTION Use a Class 2/SELV (Safety Extra-Low Voltage) isolated and ungrounded power
supply as input power to the computer. This power source provides protection
so that under nominal and single fault conditions, the voltage between the
conductors and Functional Earth/Protective Earth does not exceed a safe value.
V- (dc Negative)
V+ (dc Positive)
GND (Safety Ground Alternate Connection)
V - V+
GND
(Safety Ground)