Error Displays - Omron E5ZN Operation Manual

When an error has occurred, the E5ZN-SDL Setting Display Unit indicates the error codes.
This section describes how to check error codes on the display, and the actions you must take to remedy the
problem.
s.err s.err s.err s.err
Meaning
The input value has exceeded the control range.
Note Control range
Platinum resistance thermometer, thermocouple input:
Temperature setting lower limit -20°C to temperature setting upper limit 20°C
(temperature setting lower limit -40°F to temperature setting upper limit 40°F)
ES1A input:
Same as input indication range
Analog input:
-5% to 105% of scaling range
Action
Check the wiring of inputs for mistakes in wiring, disconnections, short-circuits, and the input type.
If no abnormality is found in the wiring and input type, turn the power OFF then back ON again. If the display
remains the same, the E5ZN must be repaired. If the display is restored, then a probable cause can be electri-
cal noise affecting the control system. Check for electrical noise.
Operation at Error
After the error occurs, the error is displayed, and control output functions turn OFF.
Alarm outputs function as if the upper limit value has been exceeded.
An error message is displayed when "process value" or "PV/SP" are displayed.
<<<< <<<< <<<< <<<<, >>>> >>>> >>>> >>>>
Meaning
Though this is not an error, this is displayed when the process value exceeds the display range when the con-
trol range is larger than the display range (-1999 to 9999).
• When less than "-1999"
• When larger than "9999"
Action
Control continues, allowing normal operation. An error message is displayed when "process value" or "PV/SP"
are displayed.
e111 e111 e111 e111
Meaning
Internal memory operation for the E5ZN-SDL Setting Display Unit is in error.
Action
First, turn the power OFF then back ON again. If the display remains the same, the E5ZN must be replaced. If
the display is restored, then a probable cause can be electrical noise affecting the control system. Check for
electrical noise.
Operation at Error
Key operations are not possible.
Appendix B

Error Displays

Input Error
Display range over
<<<<
>>>>
Memory error
161