Chapter 4: Installation and Wiring 27
Unit Installation Height
The depth of the D50 PLC is 3 inches (76 mm) when the unit is installed on DIN rail. When the
communication cable is connected and the unit is installed in an enclosure, additional space is required.
The minimum installation sizes are given in the following diagram.
Expansion Cable Connection
Connecting the Expansion Cable
• The expansion cable is connected between the I/O expansion ports on the controller and
expander units.
• The expansion cable is keyed to prevent incorrect wiring, with Pin 1 at the top of the
connector.
• The connector can be up to 12” in length for mounting the expansion unit above, below, or
farther away from the controller. A 2.5” cable is included with each expansion unit. The
following table lists the parts required to construct a longer cable.
Expansion Cable Components
Part Description
AMP #746286-1 10-socket socket connectors (2)
AMP #499252-5 Strain relief connectors (2) for socket connectors above
Ribbon cable 28AWG stranded wire, 0.050 spacing 10 conductor w/ PVC insulation, 105deg. C, wire #1
color-coded
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