18
TB XRW1-4 04.01 E
5.5
Relay setting principle
By pressing push button <ENTER>, the parameter
menue can be called up. By pressing push button
<SELECT/RESET> the parameter to be set is reached.
The corresponding LED lights up. The actual set value
of the selected parameter is indicated on the display.
The indicated set value can then be changed by press-
ing push buttons <+><-> (in-/decrementing). The se-
lected set value is stored by pressing push button
<ENTER> and by input of the authority code (pass-
word) which means the adjustment of the unit is only
possible after the password had been put in.
(see 5.4.2)
After a trip the push button <SELECT/RESET> is re-
served for the indication of fault data. Now new pa-
rameter setting by means of push button
<SELECT/RESET> is only possible by pressing
<ENTER> first.
5.5.1
Setting of default parameters
Setting of the
XRW1-4
default parameters can be done
as follows:
•
switch off the auxiliary voltage supply
•
press simultaneously push buttons <+><-> and
<SELECT/RESET> and
•
switch on the auxiliary voltage supply again.
5.5.2
Blocking the protection functions
The blocking function of the
XRW1-4-
relays can be set
according to requirement. When pressing push buttons
<ENTER> and <TRIP> at the same time the blocking
menue is entered.
5.6
Display of software version and test-
TRIP
By pressing push button <TRIP> the first part of the
software version is displayed, the second part appears
when this push button is pressed again. When push
button <TRIP> is pressed repeatedly, the test trip routine
starts.
By entering the password the display shows "TRI?". Af-
ter pressing <TRIP> again all output relays will be en-
ergized one after the other with a time delay of 1 s.
All relays stay energized until manual reset.
5.7
Low/High range of functions block-
ing and reset
All relays of the
P
ROFESSIONAL
L
INE
have a wide-range
power supply unit allowing to choose a suitable supply
voltage. The operating threshold of the blocking and
reset inputs, however, has to be defined by taking the
supply voltage into account. The following two different
operating thresholds are available:
•
Low-range threshold U
AN
≥
10 V; U
AB
≤
8 V
•
High-range threshold U
AN
≥
70 V; U
AB
≤
60 V
Connection terminals
•
Low-range blockage input terminal C1/C1L
•
Low-range reset input terminal C2/C2L
•
High-range blockage input terminal C1/C1H
•
High-range reset input terminal C2/C2H
