Multilin SR469, Instruction Manual

Page: 225 / 270

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