SOMFY LS 40 User manual

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Ultra Lite Shutters

Why can’t standard Somfy motors be wired in parallel?
Somfy operators are fitted with a single phase asynchronous motor type,
which means that there is a capacitor between the two directional windings.
When operators are wired in parallel, all directional wires are interconnected
through the capacitors (shown in light red below), this produces interference
between directions.
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Example of parallel wiring
Capacitor
Capacitor
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If Motor A reaches its upper limit before Motor B micro-switch M2 opens and the down direction
of Motor A is powered through capacitor C2 (blue line), then reverses direction and that rapid
cycle continues on Motor A until Motor B reaches its upper limit.
This could ultimately damage the micro-switches or/and the brake or/and the end product.
Somfy Canada 1 800 667 6639
End product rapidly moving back and forth near
their end limits is the sign of parallel wiring
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To avoid that problem use DPDT switches or
controls with separated relays such as IGC and GCS
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Parallel Wiring voids
the Somfy Warranty
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