Advanced Trend Setup Screen - Johnson Controls YORK YK Style G OPTIVIEW Operation And Maintenance

Centrifugal liquid chillers, r-134a, with control center for electro-mechanical starter, solid state starter and variable speed drive
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FORM 160.54-O1
ISSUE DATE: 9/10/2014
FIGURE 60 - ADVANCED TREND SETUP SCREEN
OVERVIEW
(Flash Memory Card version C.MLM.01.05.xxx and
later)
The desired data collection start/stop triggers are setup
on this screen. The trend data collection can be set to
start or stop based upon the status of up to two selected
triggers.
The triggers can consist of digital events or analog pa-
rameters compared to thresholds. The triggers can be
used individually or in combination. The digital and ana-
log parameters are selected from the COMMON SLOTS
Screen (or Master Slot Numbers List in this manual).
The parameter selected as the Primary Trigger is com-
pared to a value selected as the Primary Test, using the
Primary Operator as a comparator. If it is evaluated as
true, then the data collection is started or stopped (after
any selected trigger delay) per the selected Trigger Ac-
tion.
A Secondary Trigger can be evaluated with the Prima-
ry Trigger to start/stop data collection. The Primary to
Secondary Operator is used to define the trigger com-
binations required to be true to start/stop data collec-
tion. The Secondary Trigger is setup and evaluated the
same as the Primary Trigger.
JOHNSON CONTROLS

ADVANCED TREND SETUP SCREEN

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Entry fields are as follows:
I. Primary Trigger
A. Primary Operator
B. Primary Test
II. Primary to Secondary Operator
III. Secondary Trigger
A. Secondary Operator
B. Secondary Test
IV. Trigger Action
A. Delay of Trigger Delay
After the desired triggers are set, the START key on the
TREND Screen must be manually pressed before the
triggers will be evaluated. While waiting for the trig-
gers to start or stop data collection, a status message
is displayed in the upper right corner of the TREND
Screen describing the pending action.
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