CODESYS - the IEC 61131-3 automation software

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PostPosted: Fri May 19, 2017 7:50 pm 
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Joined: Thu Feb 23, 2017 5:07 pm
Posts: 31
good evening,
I wanted to check my two electric rolling shutters via plc with codesys.
Since the rolling shutters have no limit switch to connect I thought to activate a 30-second timer both to raise and lower the rolling shutters.
For some time everything worked well but today I realized that the shutters did not open completely.
I tried then from the normal buttons and I realized that the rolling shutters lost the limit switch settings.
If I hold down the button to close the roller shutter continues to rotate.
But the engine's internal limit switches do not interrupt power?

Give me some info on how to handle them?

Thanks, Alberto


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