6
Measured data
The LED "pos" is lit and the two right-most
digits indicate the tap-changer position.
LED
Measured value
Pos
Display of measured tap-changer position.
Recorded
information
The left-most red digit of the display shows the
address code of the register and the other three
digits the value of the register.
Register/
Recorded information
STEP
0
Display of external and internal control signals.
The left-most digit indicates the state of the control inputs, Aut and TCO, while
the middle green digit indicates U> and Blocking. The left-most green digit repre-
sents the control inputs U< and I >. Each of the six input signals is represented by
a number. These numbers are added two and two to form the digits displayed.
Display value: 0...3.
First number:
1 = Auto, internal control signal
2 = TCO, external control signal
Second number:
1 = U>, internal control signal
2 = Blocking, external control signal
Third number:
1 = U<, internal control signal
2 = I >, internal control signal
A
Address code of the manual voltage regulating module, required for serial commu-
nication. Register A has four subregisters with the following contents:
1) Selection of data transfer rate for the serial communication. Selectable values
4800 or 9600 Bd (4.8 or 9.6 kBd).
2) Bus traffic monitor. If the module is connected to a data communication sys-
tem, which is operating, the value of the monitor is zero (0). Otherwise the
numbers 0...255 are rolling on the display.
3) Password required for remote setting.
4) Selection of main/second settings. (0 = main settings, 1 = second settings).
The settings and recorded data are not erased
by a voltage failure. Instructions for setting the
address code and the data transfer rate are de-
scribed in the manual "General characteristics
of D-type relay modules".
