Chapter 3—Installation and Wiring
36
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
Digital Inputs
There are 4 digital inputs on the Base Control Module. The
module can be ordered with four 24 Vdc inputs or four
120 Vac inputs. Some or all of these inputs may be used if
Field Wire is selected as one of the control sources. Or, if
Field Wire is not selected as one of the control sources, all
of these inputs are available as general purpose inputs. The
state of these inputs is available to a system controller over
a supported fieldbus network. The wiring for the inputs if
they are available as general purpose inputs is shown below
for both 24 Vdc and 120 Vac.
The Operation mode selected along with selecting Field Wire
as one of the control sources determines which inputs are
available as general purpose inputs. Refer to
Chapter 5—
System Configuration and Operation
on
Page 63
for
additional information on the Operation modes of the C445
and what functionality is assigned certain inputs based on
the Operation mode.
For more information on the Operation modes and Input
wiring if Fieldwire is selected as one of the control sources,
refer to
Chapter 5—System Configuration and Operation
on
Page 63
.
Below are wiring diagrams for the inputs on the Base
Control Module assuming Field Wire is not one of the
control sources, i.e. all inputs are available as general
purpose inputs.
AC Input Option
The C445 Base Control Module with the AC Input option
allows for up to four 120 Vac Inputs to be connected.
AC Input Field wiring is accomplished with a 7-pin, 5.00 mm
pitch, removable screw terminal plug.
Figure 44. AC Field Input Terminal
Figure 45. 120 Vac Input Terminal Diagram
Pin#
Circuit
Description
1
I1
AC Field Input 1
2
I2
AC Field Input 2
3
I3
AC Field Input 3
4
I4
AC Field Input 4
5
IC
Common for AC Field Input
6
IC
Common for AC Field Input
7
IC
Common for AC Field Input
Field
Inputs
1
2
3
4
5
6
7
