YAMIT E.L.I. AF800N Series, Руководство по техническому обслуживанию

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During the configuration process the following features are defined:
Main valve (sustaining valve) YES/NO. When the answer is YES the Pre Dwell delay
between the main valve opening and the opening of Station nr. 1 can be
defined. The selectable delay steps are:
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55 seconds.
1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6 minutes
Duel time delay between stations – 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, or 60 sec.
DP delay the delay during which the DP sensor reading is expected to remain stable
before reaction:
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 sec
Looping limit the number of consecutive flushing cycles triggered by the DP sensor before
deciding that there is an endless looping problem. The options are: 1-10 or
“no” which means ignoring the looping problem.
Alarm YES/NO – allocating one output for alarm activation
Delay valve YES/NO – allocating an output for Delay Valve activation
View outputs it is a special mode that enables passing through the list of
outputs to see how each output was allocated. Use the + key to change the
“no” for a “yes” and confirm by “Enter”, then keep
using the + key to pass through the list. At the bottom left corner the ordinal
number of the output is displayed and its allocated function appears in large
letters at the center of the screen. Notice that the number of possible
outputs that can be used is always an even number since the result is from
the number of “plug in” boards (each of 2 outputs) included. However, if the
number of outputs needed is not an even number, then the last valve
allocated for flushing bay be canceled by use of the STOP manual operation
key.
Pressure Unit deciding about the units to be used for pressure measurement.
Selecting between BAR or PSI.
Calibration Zero calibration of the built in electronic DP sensor. While the
sensor ports are disconnected
Select Calibration = YES
Version display the last screen of the configuration supplies information about the
software version of the controller. The version consists of 4 digits like the
following: 00 / 13
Handling “endless looping” problems
As explained before, endless looping problems can be detected when the number of
consecutive flushing cycles triggered by the DP sensor exceeds the “looping limit” set during
configuration. The fact that endless looping problem was detected will be indicated on the
display and will cause the activation of the ALARM output, additionally, the DP indication will
no longer be considered as a trigger for flushing. The following flushing cycles will be
triggered by the interval count down only.
The problem will be considered solved when the constant indication of the DP sensor will be
removed.
AF800N