Troubleshooting
Chapter 7
7.1 Unstable analog output value
7.2 Analog output value does not change
38
If the analog output value is unstable, check the following:
Check if the shielded wire of the input device is grounded.
However, depending on the conditions of the external noise, it may be
better not to ground the shielding.
Review the program again.
If the analog output value remains unchanged, check the following:
Check that the unit is in RUN mode.
Check that I/O allocations are correct.
Check the connections of the terminal block.
Check that the impedance of the input device is 500Ω or below if a cur-
rent output range has been set.
Check that the output is not short-circuited.
Check that the digital input value is within the range.
Check the configuration settings.
Troubleshooting
FP7 Analog Output Unit User's Manual