Bender ISOMETER isoCHA425 Kurzanleitung Seite 16

It is possible to assign the detected fault or the faulty conductor to an alarm
relay via the menu. If the values R oder U violate the response values ac-
F n
tivated in the „AL" menu, this will be indicated by the LEDs and relays K1 and
K2 according to the alarm assignment set in the „out" menu. In addition, the
operation of the relay (n.o./n.c.) can be set and the fault memory „M" is ac-
tivated.
If the values R or U do not violate their release value (response value plus
F n
hysteresis) for the period t without interruption, the alarm relays will switch
off
back to their initial position and the alarm LEDs AL1/AL2 stop lighting. If the
fault memory is activated, the alarm relays remain in alarm condition and the
LEDs light until the reset button "R" is pressed or the supply voltage is inter-
rupted. The device function can be tested using the test button "T". Parame-
ters are assigned to the device via the LCD and the control buttons on the
front panel; this function can be protected by a password.
Information concerning access via the BMS and Modbus RTU protocols
and isoData datastrings can be found the manual.
16 isoCHA425_D00352_00_Q_DEEN/04.2018