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GE Multilin
L60 Line Phase Comparison System
5-271
5 SETTINGS
5.8 TRANSDUCER INPUTS AND OUTPUTS
5
5.8.3 DCMA OUTPUTS
PATH: SETTINGS
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TRANSDUCER I/O
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DCMA OUTPUTS
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DCMA OUTPUT H1(W8)
Hardware and software is provided to generate dcmA signals that allow interfacing with external equipment. Specific hard-
ware details are contained in chapter 3. The dcmA output channels are arranged in a manner similar to transducer input or
CT and VT channels. The user configures individual channels with the settings shown below.
The channels are arranged in sub-modules of two channels, numbered 1 through 8 from top to bottom. On power-up, the
relay automatically generates configuration settings for every channel, based on the order code, in the same manner used
for CTs and VTs. Each channel is assigned a slot letter followed by the row number, 1 through 8 inclusive, which is used as
the channel number.
Both the output range and a signal driving a given output are user-programmable via the following settings menu (an exam-
ple for channel M5 is shown).
The relay checks the driving signal (
x
in equations below) for the minimum and maximum limits, and subsequently re-
scales so the limits defined as
MIN VAL
and
MAX VAL
match the output range of the hardware defined as
RANGE
. The follow-
ing equation is applied:
(EQ 5.27)
where:
x
is a driving signal specified by the
SOURCE
setting
I
min
and
I
max
are defined by the
RANGE
setting
k
is a scaling constant calculated as:
(EQ 5.28)
The feature is intentionally inhibited if the
MAX VAL
and
MIN VAL
settings are entered incorrectly, e.g. when
MAX VAL
–
MIN
VAL
< 0.1 pu. The resulting characteristic is illustrated in the following figure.
Figure 5–144: DCMA OUTPUT CHARACTERISTIC
DCMA OUTPUT H1
DCMA OUTPUT H1
SOURCE: Off
Range: Off, any analog actual value parameter
MESSAGE
DCMA OUTPUT H1
RANGE: –1 to 1 mA
Range: –1 to 1 mA, 0 to 1 mA, 4 to 20 mA
MESSAGE
DCMA OUTPUT H1
MIN VAL: 0.000 pu
Range: –90.000 to 90.000 pu in steps of 0.001
MESSAGE
DCMA OUTPUT H1
MAX VAL: 1.000 pu
Range: –90.000 to 90.000 pu in steps of 0.001
I
out
I
min
if
x
MIN VAL
<
I
max
if
x
MAX VAL
>
k x
MIN VAL
–
(
)
I
min
+
otherwise
⎩
⎪
⎨
⎪
⎧
=
k
I
max
I
min
–
MAX VAL
MIN VAL
–
-------------------------------------------------
=
842739A1.CDR
DRIVING SIGNAL
OUTPUT CURRENT
MIN VAL
I
min
I
max
MAX VAL
Summary of Contents for UR series
Page 2: ......
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Page 12: ...xii L60 Line Phase Comparison System GE Multilin TABLE OF CONTENTS ...
Page 32: ...1 20 L60 Line Phase Comparison System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 54: ...2 22 L60 Line Phase Comparison System GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Page 438: ...7 8 L60 Line Phase Comparison System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Page 478: ...8 40 L60 Line Phase Comparison System GE Multilin 8 3 FAULT LOCATOR 8 THEORY OF OPERATION 8 ...
Page 502: ...A 10 L60 Line Phase Comparison System GE Multilin A 1 PARAMETER LIST APPENDIXA A ...
Page 584: ...B 82 L60 Line Phase Comparison System GE Multilin B 4 MEMORY MAPPING APPENDIXB B ...
Page 622: ...D 10 L60 Line Phase Comparison System GE Multilin D 1 PROTOCOL APPENDIXD D ...
Page 634: ...E 12 L60 Line Phase Comparison System GE Multilin E 2 DNP POINT LISTS APPENDIXE E ...
Page 642: ...F 8 L60 Line Phase Comparison System GE Multilin F 3 WARRANTY APPENDIXF F ...