Omron E5CSV User Manual page 95

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Flashing
● Meaning
● Action
● Operation at
Error
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Flashing
● Meaning
● Action
● Operation at
Error
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● Meaning
● Action
● Operation at
Error
Input Sensor Error (High Temperature)
(1) The process value is higher than the overflow temperature or a
sensor error has occurred when using a thermocouple input or
platinum resistance thermometer input model.
(2) The process value is higher than the control temperature range or
a sensor error
(thermocouple/platinum resistance thermometer) model.
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.
The error is displayed after it occurs, and the alarm output (models with
alarm function only) indicates that the upper-limit value has been
exceeded. The control outputs turn OFF.
* Input sensor error detection is not provided in thermistor models.
Input Sensor Error (Low Temperature)
(1) The process value is lower than the underflow temperature or a
sensor error has occurred when using a thermocouple input or
platinum resistance thermometer input model.
(2) The positive and negative connection of the Sensor is reversed
when using thermocouple input.
(3) The process value is lower than the control temperature range or a
sensor error has
(thermocouple/platinum resistance thermometer) model.
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.
The error is displayed after it occurs, and the alarm output (models with
alarm function only) indicates that the lower-limit value has been
exceeded. The control outputs turn OFF.
* Input sensor error detection is not provided in thermistor models.
Memory Error
An error has occurred in the internal memory.
Turn the power ON again. If the display remains the same, the
Controller must be repaired. If the display is restored, then the probable
cause is electrical noise affecting the control system. Check for
electrical noise.
The control outputs and alarm outputs turn OFF.
has occurred when
occurred when using
Error Displays
using a multi-input
a multi-input
A-5