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GE Multilin L60 Line Phase Comparison Relay 5-219
5 SETTINGS 5.8 TRANSDUCER INPUTS/OUTPUTS
5
5.8.2 RTD INPUTS
PATH: SETTINGS TRANSDUCER I/O RTD INPUTS
Hardware and software is provided to receive signals from external Resistance Temperature Detectors and convert these
signals into a digital format for use as required. These channels are intended to be connected to any of the RTD types in
common use. Specific hardware details are contained in Chapter 3.
RTD input channels are arranged in a manner similar to CT and VT channels. The user configures individual channels with
the settings shown here.
The channels are arranged in sub-modules of two channels, numbered from 1 through 8 from top to bottom. On power-up,
the relay will automatically generate configuration settings for every channel, based on the order code, in the same general
manner that is used for CTs and VTs. Each channel is assigned a slot letter followed by the row number, 1 through 8 inclu-
sive, which is used as the channel number. The relay generates an actual value for each available input channel.
Settings are automatically generated for every channel available in the specific relay as shown below for the first channel of
a type 5C transducer module installed in slot M.
The function of the channel may be either “Enabled” or “Disabled.” If Disabled, there will not be an actual value created for
the channel. An alphanumeric “ID” is assigned to the channel; this ID will be included in the channel actual values. It is also
used to reference the channel as the input parameter to features designed to measure this type of parameter. Selecting the
type of RTD connected to the channel configures the channel.
Actions based on RTD overtemperature, such as trips or alarms, are done in conjunction with the FlexElements™ feature.
In FlexElements™, the operate level is scaled to a base of 100°C. For example, a trip level of 150°C is achieved by setting
the operate level at 1.5 pu. FlexElement™ operands are available to FlexLogic™ for further interlocking or to operate an
output contact directly.
5.8.3 DCMA OUTPUTS
PATH: SETTINGS TRANSDUCER I/O DCMA OUTPUTS DCMA OUTPUT H1(W8)
RTD INPUTS RTD INPUT H1
↓
↓
MESSAGE
RTD INPUT U8
RTD INPUT M5 RTD INPUT M5
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
RTD INPUT M5 ID:
RTD Ip 1
Range: Up to 20 alphanumeric characters
MESSAGE
RTD INPUT M5 TYPE:
100
Ω
Nickel
Range: 100
Ω
Nickel, 10
Ω
Copper, 100
Ω
Platinum,
120
Ω
Nickel
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