Omron RX Series User Manual page 79

LCD Digital Operator has a Dark Screen or Displays Unreadable
Characters
The cable is connected properly
between the Inverter and the LCD
Digital Operator.
The recommended cable is used.
The cable may be affected by
inductive noise. Keep the cable at
least 15 cm away from other cables.
The LCD Digital Operator is broken.
Replace the LCD Digital Operator.
LCD Digital Operator User's Manual (I579)
No
Yes
No
Yes
If normal state cannot be restored
If normal state
cannot be restored
7 Error Messages and Troubleshooting
The LCD Digital Operator is
defective. Replace the LCD Digital
Operator.
Use the recommended cable.
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