Johnson Controls YORK YK MaxE, Руководство по эксплуатации

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JOHNSON CONTROLS
134
FORM 160.54-O1
treNd sCreeN
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As many as six Operator selected parameters (Data
Points) can be plotted in an X/Y graph format. The X-
Axis is scaled per the selected Data Collection Interval
and displayed in a time of day or elapsed time format,
as selected with the X-axis toggle key. The Y-Axis is
scaled for each parameter per the selected minimum and
maximum value for each parameter. Analog parameters
are scaled in pressure, temperature, volts, amps, hertz
or time. Digital on/off parameters are scaled as zero
(off) and one (on). Only one Y-Axis label is displayed
at a time. The Y-Axis Toggle Key is used to toggle the
Y-Axis labels through the different parameters. The Y-
Axis label that is being displayed is identified at the top
of the graph. For identification, each plotted parameter
and associated Y-Axis labeling is color coordinated.
On compressor applications other than “P” com-
pressors, if equipped with Flash Memory Card version
C.MLM.01.04.xxx and earlier, all trended Data Points
are displayed simultaneously. On all “P” compres-
sor applications or other compressor applications
that are equipped with Flash Memory Card version
C.MLM.01.05.xxx and later, the DATA SELECT key
is used to display all trended Data Points simultaneously
or select a single Data Point for display.
The parameters are sampled at the selected Data Col-
lection Interval and plotted using 450 data points across
the X-Axis. If the actual value of the sampled parameter
is less than the Y-Axis label minimum for that parameter,
the value will be plotted at the minimum value. Simi-
larly, if the actual value is greater than the Y-Axis label
maximum for that parameter, the value will be plotted
at the maximum value.
There are three types of charts that can be created: ONE
SCREEN, CONTINUOUS or TRIGGERED (not appli-
cable to Flash Memory Card version C.MLM.01.04.xxx
and earlier). When plotting reaches the end of the X-axis,
if ONE SCREEN is selected, trending stops and data is
frozen. If CONTINUOUS is selected, the oldest data is
dropped from the left-hand side of the graph at the next
collection interval. Thereafter, the oldest data is dropped
from the left hand-side of the graph at each data collection
interval. If TRIGGERED is selected, data collection can
be set to start or stop based upon the selected TRIGGER
ACTION (START or STOP). If START is selected,
data collection will not begin until the Triggers have
been satisfied and any selected TRIGGER DELAY has
elapsed. Data collection will stop at the completion of
one screen of data as with the ONE SCREEN. If STOP
is selected, data collection will not stop until the Triggers
have been satisfied and any selected TRIGGER DELAY
has elapsed.
If a power failure occurs while the trending is running,
the trending is stopped. Upon restoration of power, the
last screen of data that was collected will be displayed
on the trending screen. The START key must be pressed
to initiate a new trend screen.
optiView Control Center