Omron E5GN User Manual page 120

Display range over
F Meaning
F Action
Though this is not an error, this is displayed when the process value
exceeds the display range when the control range is larger than the display
range ( 1999 to 9999).
• When less than  1999"
• When larger than 9999"
Control continues, allowing normal operation. An error message is dis
played when process value" or PV/SP" are displayed.
ERROR DISPLAY
A–5