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GE Power Management
469 Motor Management Relay
7-7
7 TESTING
7.2 HARDWARE FUNCTIONAL TESTING
7
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). View the measured values in:
A2 METERING DATA\ANALOG INPUTS
b) 0-1 mA
1.
Alter the following setpoints:
S12 ANALOG I/O\ANALOG INPUT1\ANALOG INPUT1:
0-1 mA
S12 ANALOG I/O\ANALOG INPUT1\ANALOG INPUT1 MINIMUM:
0
S12 ANALOG I/O\ANALOG INPUT1\ANALOG INPUT1 MAXIMUM:
1000 (repeat for analog inputs 2 to 4)
2.
Analog output values should be
±
0.01 mA on the ammeter. Measured analog input values should be
±
10
units. Force the analog outputs using the following setpoints:
S13 TESTING\TEST ANALOG OUTPUT\FORCE ANALOG OUTPUTS FUNCTION:
Enabled
S13 TESTING\TEST ANALOG OUTPUT\ANALOG OUTPUT 1 FORCED VALUE:
0%
(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 INPUTS
Table 7–11: ANALOG I/O TEST 4-20 mA
ANALOG
OUTPUT
FORCE
VALUE
EXPECTED
AMMETER
READING
MEASURED AMMETER
READING (mA)
EXPECTED
ANALOG
INPUT
READING
MEASURED ANALOG INPUT
READING (units)
1
2
3
4
1
2
3
4
0%
4 mA
0 mA
25%
8 mA
250 mA
50%
12 mA
500 mA
75%
16 mA
750 mA
100%
20 mA
1000 mA
Table 7–12: ANALOG I/O TEST 0-1 mA
ANALOG
OUTPUT
FORCE
VALUE
EXPECTED
AMMETER
READING
MEASURED AMMETER
READING (mA)
EXPECTED
ANALOG
INPUT
READING
MEASURED ANALOG INPUT
READING (units)
1
2
3
4
1
2
3
4
0%
0 mA
0 mA
25%
0.25 mA
250 mA
50%
0.50 mA
500 mA
75%
0.75 mA
750 mA
100%
1.00 mA
1000 mA