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4.2 OUTPUT CONFIGURATION
DTR units incorporate 22 programmable outputs. Any of the internal protection statuses shown in section 21.2.3 can
be assigned to a programmable output. We can also associate a programmable output to the activation or
deactivation of an internal status. In this same way, we can perform AND/OR/NOT logic schemes with the outputs.
4.3 GRAPHIC DISPLAY CONFIGURATION
DTR units incorporate on the right side of the faceplate, a graphical display of 112x62 mm. This display shows a
mimic of the bay associated to the DTR unit.
The stand-by screen is as follows:
The keypad used for accessing the different screens and operating on the existing elements in each screen is
located on both sides of the graphic display, as follows:
On the left side, there are two keys with up and down arrows. These arrows allow to make a selection among the
different elements displayed, as shown beside the arrows.
On the right side, there are several function keys, F1, F2, F3, F4. Depending on the displayed screen, the display
will show beside the function key, a message showing which operation we can perform. (E.g.: in the above
display, we can see an ALARMS legend close to F1 key, this means that by pressing that key, we will move to
the Alarms screen).
After 15 minutes without any of the keys being pressed, the display will turn off automatically in order to avoid
unnecessary consumption. It will turn on again by pressing any of the keys.
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4. PROGRAMMING THE UNIT
DTR Digital Tap Changer Controller
GE—106305A
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