Rockwell Automation 1557 MEDIUM VOLTAGE AC DRIVE - Manual (Page 164)

7-40 OPERATOR INTERFACE TERMINAL PV-550 REV E
1557-UM050F-EN-P – June 2013
Starting the Trace
The changes do not take affect, and the trend is not started until you press [F10] and exit the
screen. Any time prior to this you may cancel all the changes made after coming to the screen by
pressing the [F7] key.
When you exit the screen, the trend is started and the screen such as Figure 68 will show the
trigger condition and the status. The trend may also be started by pressing the [F7] key on the
DIAGNOSTICS screen.
Once the data has been collected, the status will show 'triggered' as in Figure 69. The time and
date at which the trigger occurred is displayed. The trend buffers may only be viewed when their
status is 'triggered'. To view the trend buffers, press the [F9] key.
A screen such as Figure 70 will be shown. Upon initial entry, the screen will be positioned to the
trigger point, shown by the "T ->". To view data either side of the trigger point, press the [F8] and
[F9] keys.
Changes made to the diagnostic list setup are not permanent unless they are saved to the
EEPROM in the drive. Upon exiting the DIAGNOSTICS screen (figure 68), you will be prompted
to save the changes to EEPROM. Refer to the section "Message Prompting" for further details.
Figure 68 – Diagnostic Trend Running Figure 69 – Diagnostic Trend Tripped
Figure 70 – View the Trend Buffer(s)