6 System components
6.3 Real-time clock
40
PXR Electronic trip unit
01/21 MN012005EN
www.eaton.com
6.3 Real-time clock
The PXR trip unit is equipped with an integrated real-time clock for displaying
the year, month, day, day of the week, hour, minute and second.
This clock can be set and read using the Power Xpert Protection Manager
(
section 6.4, “Power Xpert Protection Manager (PXPM)”, page 40) or any
of the communication channels, as well as via the display (in the case of the
PXR25 trip unit). The clock makes it possible to add a time stamp to events
that are recorded in the historical memory.
6.4 Power Xpert Protection Manager (PXPM)
Eaton’s free
Power Xpert Protection Manager
(
PXPM
) is a Microsoft®
Windows-based software for configuring, controlling and testing the Eaton
PXR trip units.
It enables users to create, modify and save the configurations of PXR trip
units. The software also makes it possible to reset the trip units, set the date
and time, and record the current or voltage waveforms. In addition, tripping
tests can also be performed via the PXPM. Some feature of the software
may require to obtain a license.
CAUTION
The real-time clock is not backed by a battery!
It thus needs to be permanently connected to the external
24 V DC power supply.
Should this power supply be interrupted, the real-time clock has
to be set up again.
￫
The Power Xpert Protection Manager (PXPM) can be
downloaded free of charge via the following link:
http://www.eaton.com/PXPM
