Chapter 5—System Configuration and Operation
106
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
General Purpose Input / Output Operation Mode
The C445 can operate as general purpose I/O providing the
user 4 discrete inputs and 3 discrete outputs that can be
controlled over a fieldbus network.
The inputs on the Base Control Module are not used by this
Operation Mode. All 4 inputs may be used as general
purpose inputs.
No User Interface overlays are supported by this operation
mode.
Outputs 1, 2 and 3 – open for user configuration and their
function can be selected by the user.
Control Settings
The following parameters are used to configure the
General Purpose IO Operation Mode and the C445 sources
of control.
Table 21. Configuration Parameter
Note
1
Soft reset (power cycle) required for changes to these parameters to take effect.
Fieldbus Control Word
The General Purpose IO control profile will accept the
following control commands over a fieldbus network.
Control Bits
Bit 3
0 = No action
1= Reset fault (will clear fault provided condition
has cleared)
Bit 5
0 = No action
1 = The C445 will issue a “Test Trip” fault (general
purpose outputs are not affected by Test Trip)
Control Status Word
The control status word of the General Purpose IO profile
can be accessed over the fieldbus network.
Status Bits
Bit 2
0 = local control source active
1= remote control source is active
Bit 3
0 = no fault present
1= C445 fault present
Bit 4
0 = no warning present
1= C445 warning present
Bit 5
0 = no inhibit present
1= C445 control inhibit present
Bit 6
0 = C445 not ready (fault and/or inhibit present)
1= C445 ready for control (No fault or inhibit present)
Configuration Parameter
Modbus Register Description
Read/Write
Active Operation Mode
1
700
This parameter selects the Operation Mode
R/W
Trip Enable Bit Field
1000-1001
Trip (Fault) protection enable bits
Set bits to enable desired protections
R/W
Warn Enable Bit Field
1002-1003
Warning protection enable bits
Set bits to enable desired protection warnings
R/W
C445 Local Source Selector
1
711
Set to “1 no local control
R/W
C445 Remote Source Selector
712
Set to “1” Fieldbus is remote control
R/W
C445 Q1 Output function select
1
715
Output 1 user function selection
R/W
C445 Q2 Output function select
1
716
Output 2 user function selection
R/W
C445 Q3 Output function select
1
717
Output 3 user function selection
R/W