Stand By Display - Samoa NEXU Installationshandbuch

3. INSTALLATION AND CABLING
Fresh product
Active (24VDC OUT) while one or more FCU units (U-Valve, U-Meter,
U-Count) physically connected to the tank are performing a transaction,
and at the same time, the level is not below Stop contact level (S3) or
while the unit is in bypass mode.
Inactive (0VDC OUT) when there is no transaction in any of the
aforementioned units.
External alarm output
This output is intended to control an external (remote) flash indicator
and/or warning buzzer. It is controlled by the system's warning and stop
levels (regardless of the type of probes being used): if the warning level
of stop level is triggered for this tank, this output becomes active.
OUTPUT LOGIC:
• Active (24VDC OUT) when the fluid reaches either the warning or
stop level
• Inactive (0VDC OUT) when the fluid is above (for fresh fluid tank) or
beyond (for waste fluid tank) the warning level.

3.2.9.1 STAND BY DISPLAY

When the unit is in standby mode (the switch key is in "normal"
position), the following screen will appear like this.
Several items provide the user with information about the system's status:
The arrow above each tank indicates whether it is a fresh fluid tank (arrow
pointing upwards) or a waste fluid tank (arrow pointing downwards).
The symbol at the right side of each tank indicates that the setup
information for the tank has been successfully received from the
U-Track software.
The symbol at the right side of each tank indicates that an analogue
probe is currently connected to the analogue input of the tank. If this
probe is sending an acceptable value, the symbol
If the tank has been set to use digital probes, up to three indications (S1,
S2, S3) will appear at the left side of the tank, indicating which digital
probes have been enabled. Note that the order of the probes changes
depending on whether it is a fresh fluid tank (Stop probe/S3 will be at
the bottom of the tank) or a waste fluid tank (Stop probe/S3 will be at
the top of the tank).
The volume of fluid inside the tank is displayed in real time above each
tank, expressed in the units of the system (L for litres, G for gallons). If
the tank is using analogue probes, this quantity is the exact volume
measured by the unit; if the tank is using digital probes, this quantity is
the volume estimated by the U-Track.
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
Waste oil
Active (0VDC OUT) when the fluid is below the contact probe.
Inactive (24VDC OUT) when the fluid is in touch with the Stop contact
level (S3).
General air supply solenoid valve
This output is intended to control the general air supply into the
workshop. A time schedule can be set into the U-Track software with the
working periods during which the air supply must be available.
Alternatively, this output can be controlled manually from the U-Track
(without time schedule).
OUTPUT LOGIC:
• Active (24VDC OUT) when the general air status is set to ON
(according to the time schedule or by setting it manually), or while
the unit is in bypass mode
• Inactive (0VDC OUT) when the general air status is set to OFF.
Below each tank, the tank number inside the system is displayed (1 to
52), along with the status of the pump control output:
• READY: pump is depressurized and ready for delivering fluid.
• RUNNING: pump is pressurized and delivering fluid to one or more
dispensing points.
• STOP: pump is depressurized and is locked from delivering fluid
because either the tank is empty (fresh fluid tank) or the tank is full
(waste fluid tank).
is also displayed.
Also, the fluid level is displayed graphically inside the tank, and through
the associated LED graph bar, and will change accordingly with the
measured level.
Note that the lighting colour of the graph bar segments will change
depending on the status of the tank: if the tank is in "normal" status, the
lighting colour will be green; if the tank is beyond "warning" level, the
lighting colour will be yellow; and if the tank is beyond "stop" level, the
lighting colour will be red.
EN
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