Emerson Vission 20/20 Operation And Service Manual page 176

Appendix B • Vission 20/20 Application Procedures
that is identifi ed. After seeing this message, it will take a
minute or so before the 20/20 boots up properly.
1. Once the 20/20 panel is booted back up, Press the
"USER ACCESS" button – which is the new word-
ing for the Logon button. Logon. Now insert the
thumbdrive back into the USB port.
2. Navigate to the Data Backup screen. You should
again see the USB thumbdrive listed under the
"Available Devices."
3. Select the LOAD function (above the "Available
Devices" fi eld), and then highlight the device that is
listed in the "Available Devices" window.
4. To the right of the "Available Devices" – is a "Select
Folder/File" window. In this window, fi nd the back-
up fi le for this compressor, and highlight it. Now
press the "Load" button.
a. A popup window will appear – saying "Loading
new databases will require a program restart.
Continue?". Press YES.
b. Another popup window may appear... stat-
ing something like "One or more settings
selected for loading were missing from the
archive.... And it will then list what is missing.
Continue loading anyway? Press "Yes".
5. Another popup box may appear – asking if you
want to use the IP address it found. Press "OK"
6. A popup box will appear saying "Settings were suc-
cessfully loaded. Program will restart." Press OK
button.
When the OK button is pressed, the panel will reboot.
Now – using the "hand documented" settings that you
recorded, compare the setpoints on that list against
those in the 20/20. They should all be OK. Here are the
KNOWN issues that we have found with this procedure.
• The Alarm and Trip setpoints MAY need to be re-
entered. Early version programs actually saved two
Alarm and Trip setpoints tables onto the old fl ash-
card, and when saving the tables to the thumbdrive
during the Database backup procedure, the old pro-
gram backed up the wrong table to the thumbdrive.
When a database "restore" (load) procedure is done
with the new program, the new program recognizes
that the Alarm and Trip tables are not correct, and
refuses to restore them. In this case, you'd need to
re-enter your Alarm and Trip setpoints manually.
• If you have any setpoint (including Alarms and Trips
and Control settings) that is in " inches of vacuum"
– that value will be restored as a "positive PSIG" set-
point. That is a known bug of the "Restore" function.
So, for instance, say you have the Suction Pressure
B - 20
Trip setpoint set at 3.1"hg. When the value is re-
stored, it will be restored as + 3.1 PSIG. You'll need
to re-enter this setpoint as minus 1.5 psig (which
correlates to 3.1 inches of Hg.). Do this for any
setpoint that was originally set as "inches of Hg."
• If you have communication connection issues after
restoring the database, you may have to "re-enter"
the IP address that is shown on page 1 of the con-
fi guration screen. If you experience communica-
tion problems after the "Restore" function – then
re-enter you communication settings.
• Navigate to the Maintenance screen and look at the
"Time Remaining" column – comparing that calcula-
tion against the "Maintenance Interval Hours" and
the actual runtime of the compressor. If the calcula-
tion isn't correct, then do the following;
• Navigate to the Confi guration screen – page 1
and re-enter the compressor "run hours" – lo-
cated along the top right of the screen.
• Once you do that, then press the "APPLY"
button, wait about 10 or 15 seconds. Then
cycle power on the panel. This will force the
Maintenance "Time Remaining" column to be
properly calculated.
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 2.0