Schweitzer Engineering Laboratories SEL-311L, Instruction Manual, Page: 491 / 734

Date Code 20010625 Front-Panel Interface 11-5
SEL-311L Instruction Manual
F
UNCTIONS
U
NIQUE TO THE
F
RONT
-P
ANEL
I
NTERFACE
Three front-panel primary functions do not have serial port command equivalents. These are:
v
Reclosing relay shot counter screen (accessed via the OTHER pushbutton)
v
Local control (accessed via the CNTRL pushbutton)
v
Modified rotating display with scroll lock control (accessed via the OTHER pushbutton)
Reclosing Relay Shot Counter Screen
Use this screen to see the progression of the shot counter during reclosing relay testing.
Access the reclosing relay shot counter screen via the OTHER pushbutton. The following screen
appears:
%"5&5*.&
5"3#3,@.0/-$%
Scroll right with the right arrow button and select function “79”. Upon selecting function “79”,
the following screen appears (shown here with demonstration settings):
4&53&$-0463&4
3&$-04&$06/5
If reclosing functions are disabled (see Reclosing Relay in Section 6: Close and Reclose Logic ),
the following screen appears:
/P3FDMPTJOHTFU
The corresponding text label settings (shown with example settings) are:
79LL = SET RECLOSURES (Last Shot Label—limited to 14 characters)
79SL = RECLOSE COUNT (Shot Counter Label—limited to 14 characters)
If 79LL nor 79SL are set, upon selecting function “79,” the following screen appears (shown
here with demonstration settings):
These text label settings are set with the SET T command or viewed with the SHO T command
via the serial port (see Section 9: Setting the Relay and SHO Command [Show/View Settings]
in Section 10: Line Current Differential Communications and Serial Port Communications
and Commands ).
The top numeral in the above example screen (SET RECLOSURES = 2) corresponds to the “last
shot” value, which is a function of the number of set open intervals. There are two set open
intervals in the demonstration settings, thus two reclosures (shots) are possible in a reclose
sequence.
(or = 2)