FP2 Analog Unit Troubleshooting13 - 313.1 Problems Concerning the Analog Input13.1 Problems Concerning the Analog InputProblem RemedyAnalog input conversion value cannotbe read.Check the I/O allocation for the analog units.Check the range settings.Check the settings for no execution of conversion processing (sharedmemory setting).Check the analog signal wiring.Proper current input conversion valuecannot be obtained.Check the terminal block wiring.Check the current input devices.Conversion value is unsteady. Make sure that you are using shielded twisted - pair wiring for the inputsignal wires.Make sure that the shielding of the shielded twisted - pair wiring is proper-ly connected.Make sure that no input signal wires are near other power wires.Proper conversion value cannot beobtained during R.T.D. Pt100connection.Check the range settings.Check the three- wire wiring and restart the equipment.Proper conversion value cannot beobtained during thermocoupleconnection.Check the range settings.Check the polarity of the thermocouple.Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
