ABB SPAC 315 C User Manual And Technical Description page 95

Register/ Recorded information
STEP
0 Display of blocking signals and other external control signals.
The right-most digit indicates the state of the blocking input of the module. The
following states may be indicated:
0 = no blocking signal
1 = blocking or control signal BS active.
The function of the external control signal on the relay unit is determined by the
settings of switchgroup SGB
From register "0" the TEST mode can be reached. In the TEST mode the start and
trip signals of the relay module can be activated one by one. For further details see
description "General characteristics of D type relay modules".
A The address code of the protection relay module, required by the serial communi-
cation system. The address code is set at zero when no serial communication is to be
used. The submenus of this register include the following settings or functions.
- 1st submenu. Selection of data transfer rate for the communication system.
Selectable values 4800 Bd or 9600 Bd.
- 2nd submenu. Bus communication monitor. If the relay is connected to bus
communication unit, e.g. type SRIO 1000M, and the communication system is
working properly, the monitor shows the value zero. When the communication
system is out of operation the values 0...255 scroll in the monitor.
- 3rd submenu. Password for allowing remote changing of setting values. The
password must always be given via the serial port.
- 4th submenu. Selection of main settings versus second settings.
- 5th submenu. Setting of the operate time of the circuit breaker failure protection
unit.
- Display dark. By pushing the STEP push-button the beginning of the display
sequence is reached.
Registers 1...9 are erased by pushing the RESET
and PROGRAM push-buttons simultaneously.
The contents of the registers are also erased if the
auxiliary power supply of the module is inter-
rupted. The address code of the relay module,
the data transfer rate of the serial communica-
tion system, the password and the status of the
main/second setting bank switch are not erased
by a voltage failure. Instructions for setting the
address and the data transfer rate are given in
manual "General characteristics of D type relay
modules".
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