Data Flow Systems TCU800, Installation And Operation Manual

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9
U n i t O v e r v i e w
3. Unit Overview
The following sections describe what the available features of the TCU800 are and how they monitor and operate various
parts of the pump control systems. The descriptions are from the perspective of the TCU800 as a unit interacting with a
pump control system.
User Interaction
The TCU800 provides local statuses and has mechanisms for user control locally and remotely. The interaction points are
the following: faceplate, USB ports, touch screen, and serial connectivity. The front of the TCU800 is called the faceplate.
It consists of LEDs, a soft touch button, access for USB ports, HOA switches, and a touch screen. The main purposes of
the faceplate are to provide the user with the status of the system at a glance, TCU800 operation, manual pump operation,
and configuration access.
LEDs
LEDs allow the user to quickly determine the statuses of pumps, pump control processes, radio traffic, and alarms. All
LEDs are red.
Pump Status
On/Off: A pump status LED, located under each HOA switch, is on when an associated pump is running. The LED is
off when an associated pump is stopped. The running/stopped status of a pump is provided via the digital input Motor
# Status, where # is the associated pump number 1, 2, or 3.
Flashing: A pump status LED will flash when an associated pump is overridden via telemetry or a motor start or stop
fault has occurred. Flashing will continue for a fault until the pump has properly run or the HOA switch for that pump
is taken out of Auto.
Alarm
On/Off: The alarm LED is on when any alarming condition is active, and all active alarming conditions have been
acknowledged. The LED is off when all alarming conditions are clear.
Flashing: The alarm LED will flash when there is an alarming condition that has not been acknowledged or cleared.
Flashing will continue until every alarming condition present has been acknowledged or cleared. Some alarms clear
without user action, causing the alarm light to stop flashing and clear (if no other alarming conditions are present).
Status
On/Off: The status LED is used to verify the control program is running. When the status LED is not illuminated, the
logic process is no longer running.
Flashing: The status LED will flash during system start up.
Start up Sequence: The status LED (with all other LEDs) illuminates when the power is applied to the TCU800. The
LEDs will remain on for 15 seconds and then turn off. After an additional 5 seconds, the status LED will flash until the
system has completed the start up. The status LED will now remain illuminated.