Multilin 469 Motor Management Relay ... - GE Digital Energy

CHAPTER 7: TESTING
APPLIED
RESISTANCE
100 Ω
NICKEL
167.20 Ω 100°C 212°F
207.45 Ω 150°C 302°F
252.88 Ω 200°C 392°F
305.44 Ω 250°C 482°F
APPLIED
RESISTANCE
10 Ω COPPER
EXPECTED RTD
TEMPERATURE
READING
7.2.6 Digital Inputs and Trip Coil Supervision
Table 7–3: 100 Ω NICKEL TEST
MEASURED RTD TEMPERATURE
SELECT ONE: ____(°C) ____(°F)
°Celsius °Fahrenheit 1 2 3 4 5 6 7 8 9 10 11 12
EXPECTED RTD
TEMPERATURE
READING
Table 7–4: 10 Ω COPPER TEST
MEASURED RTD TEMPERATURE
SELECT ONE: ____(°C) ____(°F)
°Celsius °Fahrenheit 1 2 3 4 5 6 7 8 9 10 11 12
7.10 Ω –50°C –58°F
9.04 Ω 0°C 32°F
10.97 Ω 50°C 122°F
12.90 Ω 100°C 212°F
14.83 Ω 150°C 302°F
16.78 Ω 200°C 392°F
18.73 Ω 250°C 482°F
The digital inputs and trip coil supervision can be verified easily with a simple switch or
pushbutton. Verify the SWITCH +24 V DC with a voltmeter. Perform the steps below to verify
functionality of the digital inputs.
Open switches of all of the digital inputs and the trip coil supervision
circuit.
View the status of the digital inputs and trip coil supervision in:
ACTUAL VALUES A1 STATUS DIGITAL INPUTS
Close switches of all of the digital inputs and the trip coil supervision
circuit.
View the status of the digital inputs and trip coil supervision in:
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 7–7