System overview
3.6 Menu-based operation
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
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3.6
Menu-based operation
Operator controls
The digitally adjustable monitoring relays have three keys for navigating on the menu levels:
●
SET key
for navigating to the menu levels and for switching between the menu levels
●
2 arrow keys for setting parameters
Navigation through the menu system of the monitoring relays is explained below in a
schematic diagram.
Depending on the device version and as long as no faults have occurred, one or more
different measuring values
①
can be displayed with the help of the arrow keys. In the event
of a fault, the display indicates the type of fault
③
by means of flashing symbols. By
repeatedly pressing the SET key briefly, it is possible to set the desired type of monitoring
(overshoot, undershoot, or range monitoring) and parameterize the lower and/or upper
threshold
②
in accordance with the device-specific setting ranges. After pressing the SET
key for at least 2.5 s, in a further step, the basic device parameters
④
, such as the switching
behavior of the output relays, the reset response in the event of a fault, and/or the tripping
delay times can be set.