TB XRW1-4 04.01 E
17
5.3
Reset
Manual reset
By pressing push button <RESET/SELECT> for some
time (about 3 s).
External reset-input C2/C2L or C2/C2H
The external reset input has the same function as the
<SELECT/RESET> push button on the front plate. Con-
necting auxiliary voltage to this input, the unit can be
reset, provided that the fault is removed.
Software reset via serial interface RS 485
Software reset has the same function as push button
<SELECT/RESET>. Please refer to open data protocol
of RS 485 interface named RS485-PRO.
5.4
Password
5.4.1
Password programming
The
XRW1-4
-relay is delivered with the preset pass-
word "++++", it can be programmed new with dip
switch 1:
Apply dip switch 1. After power on and pressing any
push button, the relay
XRW1-4
inquires for a new
password. The text "PSW?" appears on the display.
The new password is entered by any combination of
the push buttons <SELECT> <-> <+> <ENTER>. After
the new password is given, the dip switch 1 has to be
set off and aux. power must be switched off and on.
5.4.2
Using the password
Step by step, a new relay setting is made according to
the following sequence:
•
After the present setting value is changed with
<+><-> push button, <ENTER>-push button should
be pressed.
•
A message "SAV?" appears on the display to inquire
if the new setting value is really wanted to be stored.
•
After pressing the <ENTER>-push button again,the
password will be inquired by means of the message
"PSW?" on the display.
•
After the password is given correctly, which is
prompted by message "SAV!" on the display, the
new setting value can be stored by pressing
the<ENTER>-push button for about 3 seconds.
•
The new setting value for the selected parameter ap-
pears on the display again.
A password consists of four push button operations. The
pressed push buttons and their sequences define the
password.
<SELECT>
= S
<-> =
-
<+> =
+
<ENTER> =
E
then a password "-E+S" means pressing push buttons
according to the follwing sequence:
<-> <ENTER> <+> <SELECT>
After the password is given correctly, parameter setting
is permitted for five minutes. This means: For a subse-
quent parameter setting, as long as it is made within
five minutes after the password input, a renewed pass-
word input is not required. Moreover, the valid period
for parameter setting is automatically extended to fur-
ther 5 minutes after each new push button operation.
If no push button operation follows within the five min-
ute period after password input, the validity for pa-
rameter setting will be suspended.
For entering further parameters the password is then
called up again. During the validity for parameter set-
ting a new set value, after having acknowledged "SAV"
two times, is stored by just pressing push button
<ENTER> for some time.
As to parameter setting via RS 485 interface: see open
data protocol.
