Error In Lcd Display; Error Of Key - Fuji Electric PORTAFLOW X Instruction Manual

11. ERROR AND REMEDY

11.1 Error in LCD Display

If an error occurs, refer to Table below.
Status
No display appears.
Irrational display
Display is not clear.
Entire display is blackish.

11.2 Error of key

No response is made to key
input.
Any particular key does not
function or functions in a
wrong way.
INF-TN2FLC-E
Cause
• Power supply is not turned on.
• Voltage is low.
• Fuse has blown.
• LCD is abnormal.
• Connection of DC power supply
is reverse in polarity.
• Hardware error
• Ambient temperature is high
(50° or higher)
• LCD has reached the end of its
service life.
• Line voltage is low.
• LCD is abnormal.
• Ambient temperature is high
(50° or higher)
• Hardware error
Remedy
See section 10 (4) "Replacement of LCD"
Lower the temperature.
Replace the LCD.
See section 10 (4) "Replacement of LCD"
Lower the temperature.
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