Siemens SCOR Installation, Operation & Maintenance Instructions Manual page 10

Overcurrent protective relay
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2 Controls and Indicators
Locator
Name
E
RS232 PORT
(Supplied with the communications reading and/or changing data in the relay registers when the
option)
F
TMG indicator, ground
G
GROUND TAP selector
H
STATUS indicator
MODE/NEXT switch
J
UP/DOWN switch
Tap range, ground
K
Table 2. Controls and Indicators (continued)
Function
Provides interconnection for any RS-232 device that is to be used for
communication option is supplied.
An LED that illuminates when the preset ground overcurrent pickup
point is exceeded , to indicate that timing is underway.
A ten-position switch that provides an incremental adjustment of the
ground current pickup point. The switch positions are defined for both
HIGH and LOW range in a table printed on the front panel (locator 0).
(Intermediate settings between the switch positions may be established
by the Tap Cal register.)
An LED that illuminates whenever the relay is in the CONFiguration
mode
Holding this switch in the MODE position (up) for approximately 5
seconds when the word "dAtA" is exhibited on the FUNCTION/DATA
display (locator D), selects the CONFiguration mode. Holding the switch
in the MODE position for 5 seconds when "ConF" is displayed selects
the DATA mode, and also loads data changes (if any) into memory.
When neither "dAtA" nor "ConF" is on the display, holding the switch up
in the MODE position identifies the register whose contents were on
display
immediately
Each time the switch is toggled to the NEXT position (down), the display
advances to the next function in the sequence (if the DATA mode was
selected) or to the next operating parameter (if CONF was selected).
Active in the CONFiguration mode only: Increments (if raised) or
decrements (if depressed) the value of the displayed register.
Indicates the current tap range (HIGH or LOW) that applies to the relay's
internal scaling of the ground current input. (Reference the frontpanel
TAP value table, locator 0.) Note that the range is determined (during
manufacture) by the style number of the relay. The position of this plate
serves only a documentary purpose.
before
the
switch
was
Page S
operated.

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