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– 2021 R. STAHL TRANBERG AS. All rights reserved. Page 8 of 38
Manual or automatic changeover to spare outputs
Text and graphics on panel
The panels have backlight with manual di mming functionality. The text and graphics ar e
laser engraved, providing the users with clear and precise information, readable in
daylight as well as in the dark.
The construction consists of a machined, black aluminum frame with a recessed button
surface made of Lexan. The Lexan film is painted on the reverse side as well as laser
engraved on the same side. This ensures a very durable front.
Button quantity and panel size
The panels come in five different lengths, depending on the number of buttons . All
panels have the same height.
The buttons are injection molded in black color. A Lexan film in various colors is
inserted in a recess on top of the button. All button switch elements are of the metallic
dome type.
Button placement
Buttons are placed in a grid with 8 positions vertically and from 3 to 8 horizontally.
Buttons may be left out for clarity. This has no impact on software or any other settings.
Button functionality
Each button has two LEDs: One green and one red. Via software commands, these may
light up in a number of combinations: Off, steady on or flashing.
A single press on a button may have several function s, depending on the on the
configuration, button status, and the time the button has been pressed (short / long).
In general, there are four
‘normal’ states of a button:
Off. No LEDs will light up.
Rapid green flash: The panel awaits a confirmation from the output module that
the corresponding output has turned on.
Continuous green: The output module has confirmed that the corresponding
output has been turned on.
Slow green flash: The corresponding spare output has been turned on and is
confirmed.
Failure combinations include:
Flashing red and green: The output channel (relay) reports a malfunction
(broken fuse or lamp) on the main output ( e.g. main lantern). The buzzer will
sound. This is an unacknowledged alarm. When pressed at this stage, the
button will flash green and the spare output will be switched on.
