Woodward MicroNet TMR 5009, Installation/Hardware Manual

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5009 Installation/Hardware Manual 85580V2
80 Woodward
INPUT SIGNALS
•
Are all input signals properly scaled?
•
Are the inputs free of electrical noise and properly shielded?
•
Is the wiring correct?
•
Have all field input signals to the control been verified?
•
Is the polarity of the signals correct?
OUTPUT SIGNALS
•
Are the outputs calibrated?
•
Have the actuator drivers been calibrated to the stroke of the turbine valves?
•
Are the output signals free of noise and properly shielded?
•
Is the wiring correct?
TRANSDUCERS
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Is the transducer calibrated for the proper range?
•
Has it been tested by simulating it’s input and measuring it’s output signal?
•
Does the transducer have power?
•
Are the sensing lines feeding the transducer clear of obstructions?
MAGNETIC PICKUPS AND OTHER SPEED SENSING DEVICES
•
Is the wiring between the speed sensing pickup and the control correct?
•
Are there any grounding problems or worn shields?
•
Is the signal sufficient (at least 1.5 Vrms)?
•
Is the signal a clean sine wave or square wave with no spikes or distortions?
•
Is the MPU head clean and free of oil or metallic particles?
•
Is the MPU head free of any nicks or chips?
•
Is the MPU or proximity probe correctly aligned with the gear?
•
Is the speed sensing probe adjusted to the correct gap?
•
Is the speed sensing probe head the correct size for the toothed wheel it is being
used with?
INPUT VOLTAGE/POWER SUPPLIES
•
Is the input power within the range of the control’s power supply input?
•
Is the input power free of switching noise or transient spikes?
•
Is the power circuit dedicated to the governor only?
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Are the control’s supplies indicating that they are OK?
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Are the control’s supplies outputting the correct voltage?
ELECTRICAL CONNECTIONS
•
Are all electrical connections tight and clean?
•
Are all signal wires shielded?
•
Are shields continuous from the device to the control?
•
Are the shields terminated according to Woodward specifications?
•
Are there low voltage signal wires running in the same wiring trays as high voltage
wiring?
•
Are the governor’s signal common or grounds not tied to any other devices?
•
Have the signals been checked for electrical noise?
VOLTAGE REGULATOR
•
Is the voltage regulator working properly?
EXTERNAL DEVICES
•
Are there external devices the control is dependent on for input signals?
•
Are these devices providing the correct signal to the control?
•
Is the external device configured or programmed to be compatible with the control?
The following tables (5-3 thru 5-6) can be used to troubleshoot electrical signals
coming into and out of the 5009 control. A listing from each I/O module’s Sub D
connector on the front panel to the respective terminal block on the FTM is given.
If a signal is shorted or missing, the tables can be used to troubleshoot the
problems to the FTM, cables, or the respective I/O module.