Sel SEL-787 - Figure 4.63 Analog Output Number Allocation; Table 4.41 Output Setting for a Card in Slot 3

4.90
SEL-787 Relay Instruction Manual Date Code 20150130
Protection and Logic Functions
Global Settings (SET G Command)
Analog Outputs
If an SEL-787 configuration includes the four analog inputs and four analog
outputs (4 AI/4 AO) card, the analog outputs are allocated to output numbers
1-4. Figure 4.63 shows the x and y variable allocation for the analog output
card.
Figure 4.63 Analog Output Number Allocation
For an analog input/output card in Slot 3, setting AO301AQ identifies the
analog quantity we assign to Analog Output 1 (when set to OFF, the device
hides all associated AOx0y settings and no value appears on the output). You
can assign any of the analog quantities listed in Appendix K: Analog
Quantities.
Table 4.41 shows the setting prompt, setting range, and factory-default
settings for an analog card in Slot 3.
Example
In this example, assume we want to display in the station control room the
analog quantity (refer to Appendix K: Analog Quantities) IAW1_MAG, Phase
A Current Magnitude in Primary Amps (0 to 3000 Amps range) using a -20 to
+20 mA Analog Output channel. We install an analog input/output card in slot
C (SEL
ECT 4 AI/ 4 AO) and set the card channel AO301 as shown in
Figure 4.63 below. Note that the AO301 channel has to be configured as a
“current analog output” channel (refer to Figure 2.5).
AI301 HI WARN 2 OFF, –99999.000 to +99999.000 AI301HW2 := OFF
AI301 HI ALARM OFF, –99999.000 to +99999.000 AI301HAL := OFF
a
Voltage setting range for a voltage transducer, i.e., when AI301TYP := V.
Table 4.40 Analog Input Card in Slot 3 (Sheet 2 of 2)
Setting Prompt Setting Range
Setting Name :=
Fac tory Default
Table 4.41 Output Setting for a Card in Slot 3
Setting Prompt Setting Range
Setting Name :=
Fac tory Defau lt
AO301 ANALOG QTY Off, 1 analog quantity AO301AQ := OFF
AO301 TYPE I, V AO301TYP := I
AO301 AQTY LO –2147483647.000 to
+2147483647.000
AO301AQL := 4.000
AO301 AQTY HI –2147483647.000 to
+2147483647.000
AO301AQH := 20.000
AO301 LO OUT VAL –20.480 to +20.480 mA AO301L := 4.000
AO301 HI OUT VAL –20.480 to +20.480 mA AO301H := 20.000
AO301 LO OUT VAL –10.240 to +10.240 V AO301L := 0.000
a
a
Voltage setting range for a voltage transducer, i.e., when AO301TYP := V.
AO301 HI OUT VAL –10.240 to +10.240 V AO301H := 10.000
a
Output Number (1 through 4)
Slot Position (3 through 5)
Analog Output
AOx0y
NOTE: The SEL-787 hides the
following settings with default values
when you use a 3 DI/4 DO/1 AO card:
AOxx1TYP := I
AOxx1L := 4.000
AOxx1H := 20.000