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Problem Possible cause Remedy

Automatic closing

function is not

working

• Persistent door OPEN command. LED

onthe▲buttonontheconnectionfor

external buttons lights up continuously

(external button may be defective)

• External timer connected - This is not a fault!

See “DIP switch 1: Setting automatic closing

function – dening basic values” on page 24.

• Replacing an external button

• Photo eye interrupted. LED on terminal

of the photocell blinks once intermittently

• Remove obstacle.

• Check wiring and function of photocell.

12. Troubleshooting

SOMMER RDC Vision+ User Manual

Questions and Answers: