Rockwell Automation 1797-PS1E FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply - Manual (Page 5)

FLEX Ex 85…253V ac In/Quad-Ex dc Out Power Supply 5
Publication 1797-5.33 - April 2007
The total number of power supplies needed depends on the modules used
and the total system configuration. The following illustration shows how this
example may be configured.
IMPORTANT
Even though modules may be supplied with power from the same
power-supply output channel, galvanic isolation in the module
provides module-to-module galvanic isolation. Depending upon
the module type, galvanic isolation (channel-to-channel within the
module) may or may not be provided. See the module’s
specifications for more information.
IS Pwr
Safe Area
Hazardous Area
1797 power supply
1797 power supply
1797 power supply
ACNR Spare IE8 OE8 IRT8 Spare Spare IJ2 IJ2
ACNR OB4 OB4D IBN16 IBN16 IBN16 IE8 IRT8 OE8
RPA RPFM RPFM
IS 1797 I/O
IS 1797 I/O
IS 1797 Fiber Hub
IS Pwr
IS Pwr
IS Pwr
IS Pwr
IS Pwr
IS Pwr
IS Pwr
IS Pwr
IS Pwr
IS Pwr
IS Pwr
EEx d/e
EEx ib
41306
Unsafe
Power
Entrance
Spare
Unsafe
Power
Entrance
Unsafe
Power
Entrance
EEx d/e
EEx ib
EEx d/e
EEx ib