GE Masoneilan 469 Series, Instruction Manual

Page: 306 / 348

7–8 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 7: TESTING
A1 STATUS

DIGITAL INPUTS
7.2.7 Analog Inputs and Outputs
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.
4 to 20 mA Analog Input

Alter the following settings:
S12 ANALOG I/O

ANALOG INPUT1

ANALOG INPUT1:
“4-20 mA”
S12 ANALOG I/O

ANALOG INPUT1

ANALOG INPUT1 MINIMUM:
“0”
S12 ANALOG I/O

ANALOG INPUT1

ANALOG INPUT1 MAXIMUM:
“1000” (repeat this
value for Analog Inputs 2 to 4)
Analog output values should be ± 0.2 mA on the ammeter. Measured analog input
values should be
±
10 units.
 Force the analog outputs using the following settings:
S13 TESTING

TEST ANALOG OUTPUT

FORCE ANALOG OUTPUTS FUNCTION:
“Enabled”
S13 TESTING

TEST ANALOG OUTPUT

ANALOG OUTPUT 1 FORCED VALUE:
“0%”
(enter desired value in percent; repeat for Analog Outputs 2 through 4)
 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 7–2).
 View the measured values in:
INPUT EXPECTED
STATUS (SWITCH
OPEN)
PASS /
FAIL
EXPECTED
STATUS (SWITCH
CLOSED)
PASS /
FAIL
ACCESS Open Shorted
TEST Open Shorted
STARTER STATUS Open Shorted
EMERGENCY RESTART Open Shorted
REMOTE RESET Open Shorted
ASSIGNABLE INPUT 1 Open Shorted
ASSIGNABLE INPUT 2 Open Shorted
ASSIGNABLE INPUT 3 Open Shorted
ASSIGNABLE INPUT 4 Open Shorted
TRIP COIL SUPERVISION No Coil Coil