Chapter 5—System Configuration and Operation
108
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
Stand Alone Ground Fault Module
Description
The C445 system may be configured as a standalone system
whereas only ground fault monitoring and indication is
enabled. In such a configuration, a C445B… base module is
coupled to an External Ground Fault Module connected to
the appropriate sized CT to transmit monitoring information
via a network. A C445M… measurement module and/or a
C445UM user interface module may be added to provide
local indication, control, and protection.
C445 outputs:
●
Output 1 and 2 are general purpose outputs
●
Output 3 is default as the ground current trip relay
When the C445 Motor Management relay is powered on
for the first time with the External Ground Fault Module,
output 3 will default as the ground trip relay.
If a different output relay is desired for this operation,
outputs 1, 2 and 3 – open for user configuration and their
function can be selected by the user.
Recommended User Interface Options for the
Stand Alone Ground Fault Module Mode
Figure 108. C445UM: Monitoring User Interface
The Monitoring User Interface can be used with any
operation mode. In Stand Alone Ground Fault Mode, the Start
and Stop buttons will be disabled. If a user presses a Control
button, the screen will notify them that the functionality is
not enabled. The Reset button will still function but can be
disabled if desired in User Interface Settings. Monitoring,
Navigation, and Parameter settings are all available. Test Trip
is also available in PRG R Service.