Defining sample rate and positioning, Starting the trace – Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) User Manual

Page 132

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3-58 Operator

Interface

7000A-RM001A-EN-P – January 2011

7000 “A” Frame

Defining Sample Rate and Positioning

Pressing the [F4] key sets the rates at which the samples are taken.
This data field is then modified in the same manner as the trigger
data is entered. Rates can be set from 0 msec (collect as fast as
possible) to 20.000 seconds.

When samples are collected, part of the buffer will store values prior
to the trigger point and the remainder of the buffer will store values
after the trigger. Pressing the [F5] key will allow you to set the
percentage of the trend buffer, allocated to values collected, after the
trigger has occurred. This data field is modified in the same manner
as the trigger data is entered.

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 3.83 will show the trigger condition and the status. Pressing
the [F7] key on the DIAGNOSTICS screen may also start the trend.

Figure 3.83 – Diagnostic Armed

Figure 3.84 – Diagnostic Triggered

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