watt supply designed for a 12 VDC nominal input. It will
accept an input range of 9.6 to 15.0 VDC. It mounts in a
standard power supply slot in any IC693 PLC baseplate.
The + and – wires from the 12 VDC power source
connect to the top two protected terminals on the powers
supply terminal board. Connect the + wire to the top
terminal and the – wire to the second terminal. A
connection diagram is printed on the front of the power
supply module next to the terminal board.
Isolated 24 VDC Supply
The bottom two terminal board terminals provide
connections to the Isolated 24 VDC output. This output
can be used to provide power for input circuits for 24
VDC Input Modules (within the 15 watt limitation of this
output). This is useful because power switched to input
points must be supplied from a source external to the
IC693 input modules.
Wire Connection information
• Each terminal can accept solid or stranded wires, but,
if using two wires on one terminal, the wires should
be the same size and type.
• The suggested torque for the power supply terminal
board screws is 12 in-lbs. (1.36 Nm).
• Use one AWG #14 (2.1 mm2
) or two AWG #16 (1.3
mm2
) copper conductors, rated for 75 degrees C (167
degrees F) only, per terminal board terminal.
Input Overvoltage Protection Devices
The input overvoltage protection devices are connected
internally to pin 4 of the terminal board. This pin is
normally connected to pin 3 (frame ground) via a factoryinstalled jumper strap. If a Hi-Pot test is to be performed
on this supply, the jumper strap must be removed during
the test so that the overvoltage protection devices are not
damaged. After testing, replace the jumper strap to
restore overvoltage protection during normal operation.
