16
TB XRW1-4 04.01 E
5.2
DIP switches
On the front plate of the
XRW1-4
-relay there are DIP
switches to preset the following functions:
•
Password programming
•
Output relay functions
5.2.1
Function of the output relays
The following functions of the output relays can be pre-
set:
•
Alarm relay activation at pickup or after tripping
of the relay
•
Reset of the output relays manually or automatically
The alarm relays are activated according to the preset-
ting:
Dip switch 2 OFF:
The alarm relays pickup directly with energizing of the
corresponding measuring circuit. Thus, an alarm signal-
ling can be given before the relay trips.
Dip switch 2 ON:
The alarm relays pickup only after relay trip. That
means: the trip relay and the corresponding alarm re-
lay pickup at the same time after the time delay
elapsed.
Dip switch 3 OFF:
All output relays will be reset automatically after the
fault has been rectified, (e.g. when the fault current is
interrupted).
Dip switch 3 ON:
All output relays remains activated and must be reset af-
ter fault clearence.
•
Manually: By pressing push button
<SELECT/RESET>
•
External: By connecting aux. voltage to C2/C2L or
C2/C2H
•
Via RS 485 interface
Note:
To let the parameter change take effect, the auxiliary
voltage has to be switched off and on again after the
dip switches are plugged or unplugged.
Dip switch
Function
Dip switch
position
Operation mode
1
Password
OFF
Normal position
ON
Password selection
2
Alarm relays
OFF
Alarm relays will be activated at pickup
ON
Alarm relay will be activated at tripping
3
Reset
OFF
Output relays will be reset automatically
ON
Output relays will be reset manual/external/via software
4
none
Table 5.1: Summary of coding possibilities
