Rockwell Automation 1797-PS2E2 FLEX Ex Power Supply - Manual (Page 5)

FLEX Ex Power Supply 5
Publication 1797-5.8 - June 2010
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
Ex d/e
Ex ib
Ex d/e
Ex ib
Ex d/e
Ex ib
41306
Unsafe

Power

Entrance
Spare
Unsafe

Power

Entrance
Unsafe

Power

Entrance