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4. Display and operating elements
À
Operational
indicator:
LED green, illuminated
when power supply is
active.
Á
Fault indicator:
LED red, operating
condition indicator to
NAMUR NE 44
- Off, fault free operation
- On, unit internal fault
- Flashing, incorrect
Input signal or
cable open circuit,
Meas. range excess or
under cut.
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Measured value display:
4 digit 7 segment display. Displayed are:
- Dialogue text for setting up
- Actual limit values
- Actual measured value as bargraph or as numeric
percentage after operating “+”or “-” operating keys
Ã
Alarm set point condition:
The numbers 1 and 2 are activated by the built-in relays. Each
alarm condition, high or low is identified by its respective
symbol.
Ä
Relay condition display:
LED yellow, Operating condition to NAMUR NE 44.
- Off, relay inactive
- On, relay active (rest position)
Å
Enter key:
Entry into operating menu
- selection of operation functions within a function group.
- Saving entered data.
- Start Quick-Set by simultaneous operation with the
“+” key.
Æ
+/- key:
- Selection of function groups within the menu.
- Setting parameters and numeric values.
- Display actual measured value as a percentage
À
Á
Å
Ä
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Æ
Contactor
31
Содержание RTA421
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