E5AZ-R3HMT datasheet(53/64 Pages) OMRON

53 / 64 page

E5EZ-PRR

Error Displays

When an error occurs, the error contents are shown on the No.1 display.

This section describes how to check error codes on the display, and the actions

to be taken to remedy the problems.

Meaning

The input value has exceeded the input indication range(

−1999 (−199.9) to

9999 (999.9)).

Action

Check the wiring of inputs for miswiring, disconnections, and short-circuits and

check 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 Controller must be replaced. If the display is

restored, then the probable cause is electrical noise affecting the control system.

Check for electrical noise.

Operation at Error

After an error occurs, the error is displayed and the alarm outputs function as if

the upper limit has been exceeded.

When the “input error output” parameter in the advanced function level is set to

ON, the alarm 1 output turns ON whenever an input error occurs.

An error message is displayed when the PV or PV/SV/valve open percentage is

displayed.

Note. When the manual MV, MV at stop, or MV at PV error is set, the control

output corresponds to the set value.

Meaning

Though this is not an error, it is displayed if the process value exceeds the dis-

play range when the control range is larger than the display range.

The display ranges are shown below.

• When less than

−1,999 (−199.9) [[[[

• When more than 9,999 (999.9)

]]]]

Operation at Error

Control continues, allowing normal operation. The message is displayed when

the PV or PV/SV/valve open percentage is displayed.

5.err

Input Error

Display Range Exceeded

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