15
Register/ Recorded information
STEP
The switchgroups SGB1...5 are used for configuring the external control inputs.
From this register the TEST mode can be entered. In the TEST mode the trip
signals can be activated one by one. The table below shows the signal to be activated
plus the corresponding LED indicator.
LED indicator Signal to be activated
f
n
[Hz] Stage 1, output t
1
U</U
n
Stage 1, output t
1'
f
1
[Hz] Stage 2, output t
2
t
1
[s]
f
2
[Hz] Stage 2, output t
2'
t
2
[s]
f
3
[Hz] Stage 3, output t
3
t
3
[s]
f
4
[Hz] Stage 3, output t
3'
t
4
[s]
Idf/dtI [Hz/s] Stage 4, output t
4
f
r
[Hz] Stage 4, output t
4'
t
r
[s]
SGF Output of recovery stage
The function is described in detail in "General characteristics of D type relay modules".
A Address code of the relay module, required for serial communication. Register A
includes the following subregisters:
1. Setting of the data transfer rate of the relay module: 4.8 or 9.6 kBd. Default
setting: 9.6 kBd.
2. Bus traffic monitor. If the relay module is connected to a data communication
system and the data communication operates correctly, the value of the monitor
is 0. Otherwise the numbers 0...255 are rolling.
3. Password required for remote setting. The password (parameter V160) should
always be entered before a setting value can be changed over the serial bus.
4. Selection of main or second settings (0 = main settings, 1 = second settings).
Default setting: 0.
When the display is dark, access to the begin-
ning of the main menu is admitted by pressing
the STEP button for 1 s, and to the end of the
menu, by pressing the STEP button for less than
0.5 s.
The values recorded in registers 1...6 can be re-
set via the push-buttons on the front panel, an
external control signal, or a serial communica-
tion parameter, see "Resetting" in the section
"Description of operation". In addition, the re-
gisters are cleared by an auxiliary power supply
failure. The setting values, the address code, the
data transfer rate and the password of the relay
module are stored in a non-volatile memory and,
consequently, not affected by voltage supply fail-
ures. Instructions for setting the address code
and data transfer rate are given in "General char-
acteristics of D type relay modules".
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