Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 129)

Operator Interface 3-7
7000 “C” Frame 7000L-UM300I-EN-P – June 2013
Accessing/Writing to Drive
When first powered up, the operator interface knows very little
about the information in the drive. As each screen is activated, the
operator interface requests information from the drive, which it will
store within the operator interface for future reference. When the
operator interface requests information from the drive, a window is
used to display a message "Accessing Drive ...". During this time,
the operator interface will not respond to any user input, until the
task at hand is completed. You will notice that subsequent
activation of the same screen for the same data will be much quicker
since the operator interface already has most or all of its required
information.
You can selectively choose to download the complete database to
the operator interface on command, thus eliminating the initial
access delays. If uninterrupted, the operator interface will
automatically download the database on power-up, or during periods
of inactivity. Refer to the section on "Advanced Screen Operations -
Database Download".
Some screens require that information be written to the drive.
During this task, a window is used to display the message "Writing
to Drive...” During this time, the operator interface will not respond
to any user input, until the task at hand is completed.
Communication Error
While the operator interface is reading or writing to the drive, it is
possible for communications to be disrupted for a number of
reasons. If this were to occur, a special window is used to inform
you of this. During this time, the operator interface will not respond
to any user input, until the task at hand is completed.
The window for the "Communication Error" can take on two forms.
If a window has already been displayed showing "Accessing Drive"
or Writing to Drive", then the communication error message will be
added to the window already in use. Some screens constantly read
from the drive in order to show real-time data. An example of this is
the 'Top Level Menu‟. When a communication error occurs on a
screen showing real-time data, a window is opened showing a box
around the "Communication Error". Two examples of this are
shown in Figures 3.4 and 3.5.
In both cases, once communications has been re-established, the
information window will be removed and the operator interface will
return to normal operation.