(see Figure A.19). Moving to this position forces
the pump to operate continuously.
If the switch is in MANUAL or OFF position on
PCB4, the touchscreen controls no longer
control the vacuum pump. Moving the switch
back to the Automatic position puts the unit
under the control of the TotalAlert Embedded
control system.
A.3.6 3.5” Status Screen
The status screen (Figure A.20) shows the
running hour meter values.
A.3.7 3.5” Service Screen
The service screen (Figure A.21) allows access
to the unit “jog” feature, diagnostic screen and
version screen:
• Rotation – Allows the unit to run for a short
period to check rotation. When pressed, the
unit will either begin the “jog” sequence or
show a screen instructing you to place the
unit in “OFF” mode
fi
rst (the unit must be
in “OFF” mode before it can check rotation).
When “jog” mode is started, the unit will
fi
rst
delay for 5 seconds to allow the user to get in
position to check the rotation, then run the
unit for a brief period.
• Diagnostic – Depicts the I/O status of
the connecting unit controller board. For
example, the digital inputs (X1-X4 as 0 or 1),
the analog readings (T1-T3 and I1 with A/D
values), the 24VDC powered digital outputs
(Z1-Z5 as 0 or 1) and the dry contacts (Y1-Y3
as 0 or 1).
• Version – Displays the RS-485 communication
version, the
fi
rmware versions for the 3.5”
display board and the connecting controller
board.
• Testing – Allows for test mode of all shutdown
events. See Section A.5 for more information.
CAUTION:
The “Manual Override” mode of operation
should only be used for emergencies such as
a loss of unit display board or loss of display
touchscreen and should not be used for
normal operation.
Figure A.20 3.5” Status Screen
Figure A.21 3.5” Service Screen
3.5” Unit Screen with Manual Override selected
Lubricated Rotary Vane Laboratory Vacuum Systems
4107 9021 88.01
A-10
