Function
16
RCMA420-DM_D00060_02_M_XXEN/06.2016
3.2.1
Connection monitoring
The CT connections are continuously monitored. In the event of a fault, the
alarm LEDs AL1 / AL2 / ON flash (Error Code E.01).
3.2.2
Fast response value query
With the display in standard mode, the currently measured response values
I
Δn1
and
I
Δn2
can be queried pressing the Up and Down keys ( < 1.5 s). Switcho-
ver to the Menu mode is not required. If you want to exit the fast response va-
lue query, press the enter key.
3.2.3
Automatic self test
The device automatically carries out a self test after connecting to the system
to be monitored and later every 24 hours. During the self test internal functio-
nal faults will be detected and appear in form of an error code on the display.
3.2.4
Manual self test
While the test button T is pressed and held down, all device-related display
elements appear on the display.
After pressing the test button for > 1.5 s, the device carries out a self test. Du-
ring this test, internal functional faults are detected and will be displayed in
form of an error code.
In addition, a test current is supplied via the CT connection T which exceeds
the response value set at the RCMA. When the self test runs correctly, all of the
three LEDs light continuously. After successful testing, the yellow LEDs go out.
If the test current does not exceed the set response values, the yellow LEDs
flash and the fault message E.02 appears on the display.
3.2.5
Functional faults
If an internal functional fault occurs, all of the three LEDs flash. An error code
will appear on the display (E01…E32). In such a case please contact the Ben-
der Service.
