2
ABB Automation
General characteristics of
C-type relay modules
Contents
Push-buttons .................................................................................................................. 2
Programming switches SG1 ............................................................................................ 2
Setting knobs .................................................................................................................. 3
Display ........................................................................................................................... 3
Display main menu ................................................................................................... 3
Display submenu ....................................................................................................... 4
Setting mode ............................................................................................................. 4
Example: Operation in setting mode ......................................................................... 5
Stored information .................................................................................................... 6
Trip-test mode........................................................................................................... 7
Example: Trip-test function ...................................................................................... 8
Operation indicators ....................................................................................................... 9
Fault codes...................................................................................................................... 9
Push-buttons
The front panel of the relay module contains
two push-buttons. The STEP button is used for
stepping forward in the display and the RESET
button for resetting the red indicators. Addi-
tionally, the push-buttons are used for certain
settings, e.g. for setting the address of the relay
module and the data transfer rate for the serial
communication when the modules are used in
relay packages provided with this quality. (See
section Display).
Programming
switches SG1
Part of the settings and the selections of the
operating characteristics for the relay modules
in various applications are made with the pro-
gramming switches SG1 on the front panel. The
indicator of the switchgroup glows when the
checksum of the switchgroup is shown on the
display. The checksum can be used for checking
that the switches are properly set. Fig. 2 gives an
example of calculating the checksum.
Fig. 2. Example of calculating the checksum of programming switchgroup SG1.
When the checksum calculated according to the
example is equal to the checksum indicated on
the display of the relay module, the switches are
properly set.
The function of the programming switches of
the individual measuring relay modules is speci-
fied in the description of the module concerned.
1MRS 750328-MUM EN
Issued 96-02-19
Version A (replaces 34 SPC 2 EN1)
Checked L-W U
Approved TK
Data subject to change without notice
