GE Mark VIeS - Current Output Commanded Current Feedback Error; Open Field Wire Detected; Thermocouple Input Millivolt Exceeds Hardware Limit

99-130
Description IOPoint [ ] - Current output commanded current feedback error
Possible Cause
• The measured current feedback does not match the commanded current.
• There is an open circuit on an output.
• Output impedance is too high (max allowed 800 Ohms).
Solution
• Check the field wiring and device.
• Verify that the commanded output is within output range.
• Replace the I/O pack.
131-162
Description IOPoint [ ] - Open field wire detected
Possible Cause An open circuit has been detected at the terminal board based on the sensor type.
Solution
• Digital Input:
− Check the wiring between the terminal board and the device.
− Verify that the recommended line monitoring resistors are being used (refer to the I/O pack user documentation).
• Thermocouple Input: verify the wiring of the thermocouple at the inputs.
163-194
Description IOPoint [ ] - Thermocouple input millivolt exceeds hardware limit ([ ] mV)
Possible Cause
• Thermocouple millivolt input exceeds the hardware limit
• An open thermocouple was detected.
Solution This is usually not a I/O pack or terminal board failure if other thermocouples are working correctly.
• Check the field wiring, including shields.
• Check the installation of the I/O pack on the terminal board.
• Replace the I/O pack.
YUAA Universal I/O Modules GEH-6855_Vol_II System Guide 219
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