Owner manual

Rockwell Automation Publication 1756-UM533C-EN-P - February 2011 29
Module Installation Chapter 2
Power Requirements
These modules receive power from the 1756 chassis power supply and require
these two sources of power from the backplane.
ATTENTION: To comply with the CE low voltage directive (LVD), all
connected I/O must be powered from a source compliant with safety extra
low voltage (SELV) or protected extra low voltage (PELV).
WARNING: Use supply wires suitable for 30 °C (86 °F) above
surrounding ambient.
Module Power Requirements, max
1756-IF8H • 300 mA at 5.1V DC
• 135 mA at 24V DC
1756-IF16H • 200 mA at 5.1V DC
• 125 mA at 24V DC
1756-OF8H • 200 mA at 5.1 V DC
• 230 mA at 24 V DC
IMPORTANT
The 1756-OF8H module requires more power than the standard 1756-OF8
module. You can have a maximum of 12 1756-OF8H modules per chassis.
ATTENTION: Personnel responsible for the application of safety-related
programmable electronic systems (PES) shall be aware of the safety
requirements in the application of the system and shall be trained in using
the system.