Xylem IM131R01 AQUAVAR AV II - Manual (Page 68)

Analog Out
It is possible for the AQUAVAR II controller to supply an output signal from 0-10 Volts at a maximum
of 2 mA. Connection of the outside recording device (such as a meter) is done at terminals 1
(analog return) and 2 (output signal) of terminal strip X9 inside the AQUAVAR II controller drive.
The “Analog Out” display allows you to display pressure as the output to be displayed. 0-10
Volts equals 0-100% of displayed pressure.
Pressure Units
This display allows the user to select Bar, PSI, or meters of water for pressure or gallons per
minute for flow, or percent. If percent is selected, the percentage displayed will be the percentage
of the maximum sensor value.
Test Run
The AQUAVAR II controller can carry out a test run of the pump either automatically or manually. For
automatic settings, enter the number of hours you want to elapse between the last pump shut
down and the test. Possible settings are between 10 and 100 hours. When the time has elapsed,
the pump will automatically turn on at 50% of maximum frequency (normally 30 hz) for 20
seconds and then turn off again.
Submenu Test Run Manual
To conduct a manual test run of the pump, enter this submenu by holding down on the S key. The
first display in the submenu is the activation display for the test run. To start the test, press the up
and down arrow keys at the same time. If you want the test to be conducted at some other
frequency than 30 hz, use the next display in the submenu: Test Frequency. This can be set
from 6-60 hz. When finished, hold down on the button until the display returns to the
Submenu display.
Submenu Errors
Two of the functions in this submenu have been covered: Conveyor Limit (used to set system shut
off when maximum flow is exceeded) and Delay Time (used to set pump shut off in conjunction with
conveyor limit and a suction side pressure switch or float). The remaining displays in this submenu
are used to show the cause of failure in the last three instances where a pump or system failure
caused the AQUAVAR II controller to turn the pump off.
Within the Error Submenu, the Error Reset display allows the operator to tell the AQUAVAR II
controller to re-try pumping after a non-fatal fault. When turned on, the AQUAVAR II controller will
retry up to five times before shutting the unit off. If Error Reset is off, the AQUAVAR II controller will
shut down the system the first time a fault occurs. In both cases, the AQUAVAR II controller can be
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Operator Custom Features and Displays
This will only work when the Auto Start function on the main menu is on. If you do not want to
use the automatic test run function, you can turn it off by selecting 100 hours, and then press-
ing the up and down arrows at the same time until the display changes to deactivated.
Note
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