Analog Inputs And Outputs - GE 469 Instruction Manual

7 TESTING
The 469 specification for analog input and analog output accuracy is ±1% of full scale. Perform the steps below to verify
accuracy. Verify the Analog Input +24 V DC with a voltmeter.
a) 4-20 MA
1. Alter the following setpoints:
Õ×
S12 ANALOG I/O
Õ×
S12 ANALOG I/O
Õ×
S12 ANALOG I/O
Analog output values should be ±0.2 mA on the ammeter. Measured analog input values should be ±10 units. Force
2.
the analog outputs using the following setpoints:
Õ×
S13 TESTING TEST ANALOG OUTPUT
Õ×
S13 TESTING TEST ANALOG OUTPUT
(enter desired value in percent; repeat for Analog Outputs 2 through 4)
3. Verify the ammeter readings as well as the measured analog input readings. For the purposes of testing, the analog
input is fed in from the analog output (see Figure 7–1: Secondary Injection Test Setup on page 7–1). View the mea-
sured values in:
A2 METERING DATA
ANALOG EXPECTED
OUTPUT AMMETER
FORCE READING
VALUE
0% 4 mA
25% 8 mA
50% 12 mA
75% 16 mA
100% 20 mA
b) 0-1 MA
1. Alter the following setpoints:
Õ×
S12 ANALOG I/O
Õ×
S12 ANALOG I/O
Õ×
S12 ANALOG I/O
Analog output values should be ±0.01 mA on the ammeter. Measured analog input values should be ±10 units. Force
2.
the analog outputs using the following setpoints:
Õ×
S13 TESTING TEST ANALOG OUTPUT
Õ×
S13 TESTING TEST ANALOG OUTPUT
(enter desired percent, repeats for analog output 2-4)
3. Verify the ammeter readings as well as the measured analog input readings. View the measured values in:
A2 METERING DATA
ANALOG EXPECTED
OUTPUT AMMETER
FORCE READING
VALUE
0% 0 mA
25% 0.25 mA
50% 0.50 mA
75% 0.75 mA
100% 1.00 mA
GE Multilin
Courtesy of NationalSwitchgear.com
Õ
ANALOG INPUT1 ANALOG INPUT1:
Õ×
ANALOG INPUT1 ANALOG INPUT1 MINIMUM:
Õ×
ANALOG INPUT1 ANALOG INPUT1 MAXIMUM:
Õ
FORCE ANALOG OUTPUTS FUNCTION:
Õ×
ANALOG OUTPUT 1 FORCED VALUE:
Õ×
ANALOG INPUTS
MEASURED AMMETER READING
(MA)
1 2
Õ
ANALOG INPUT1 ANALOG INPUT1:
Õ×
ANALOG INPUT1 ANALOG INPUT1 MINIMUM:
Õ×
ANALOG INPUT1 ANALOG INPUT1 MAXIMUM:
Õ
FORCE ANALOG OUTPUTS FUNCTION:
Õ×
ANALOG OUTPUT 1 FORCED VALUE:
Õ×
ANALOG INPUTS
MEASURED AMMETER READING
(MA)
1 2
469 Motor Management Relay
7.2 HARDWARE FUNCTIONAL TESTING

7.2.7 ANALOG INPUTS AND OUTPUTS

"4-20 mA"
"0"
"1000" (repeat this value for Analog Inputs 2 to 4)
"Enabled"
"0%"
EXPECTED
ANALOG INPUT
READING
3 4
0 mA
250 mA
500 mA
750 mA
1000 mA
"0-1 mA"
"0"
"1000" (repeat for Analog Inputs 2 to 4)
"Enabled"
"0%"
EXPECTED
ANALOG INPUT
READING
3 4
0 mA
250 mA
500 mA
750 mA
1000 mA
MEASURED ANALOG INPUT
READING (UNITS)
1 2 3 4
MEASURED ANALOG INPUT
READING (UNITS)
1 2 3 4
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