If you select to “Use the alarm relay” and to also have it close its contacts
“whenever the pump is stopped” then after entering a stopped time incyclic
running, a question will appear “Learn new pressure (yes or no)”. A user can
choose to use valve sequencing or not, and if not, by selecting “No” to the
question, still have the alarm relay close its contacts when the pump stops
in normal cyclic running.
The system can be restarted automatically after a fault condition has shut
the pump off. The switch will only restart the pump once after a
predetermined time.
The IPG20 keeps track of how long the pump runs for regardless of what it
may be doing. On shutting down the pump for any reason the controller
displays on its screen the total run time in minutes. The pump may have
stopped because of high pressure or because flow was lost. Regardless of
the reason and regardless of whether it ends up in permanent alarm or in
auto restart waiting to restart, it displays the total time it previously ran for. In
auto restart mode it does this by displaying alternate screens that change
every 5 seconds.
One screen displays the reason for the shutdown and the time remaining
before restart and the second screen displays the total run time.
The IPG20 can be programmed to run and stop a pump for set periods of
time. Both the running and stopping times can be set to any value you
choose, from 1 minute to 99 hours 59 minutes (0 to just over 4 days) in
increments of 1 minute. The cyclic running option is highly flexible. The run
and stop timers are totally independent of each other.
If a set running and stopping time are programmed in, the IPG20 will run
the pump for whatever time it is set to and then stop for the time set on its
stop timer. If a run time is set to some value and the stop time is left set at
zero the pump guard will behave as a one-shot batch controller.
CYCLIC RUNNING
VALVE SEQUENCING
TOTAL RUN TIME DISPLAY
AUTO RESTART ON A FAULT
40
