Turn off fob-controlled dust collector (Supercell)

[CommunityUser5]

Hey Ian,

this was already discussed many times in the forum. Here I quote a bit of what I remember:

@CommunityUser5

A water-cooled spindle needs a water coolant pump. VFDs have relay outputs for this purpose, with which the VFD switches spindle coolant pump on when the spindle runs and off after spindle is stopped. You may even program your VFD in a way to continue cooling of the spindle for a while after the spindle was stopped.

Similarly, if your VFD has enough control outputs, it can control an external relay which is connected to your dust collection system and can switch it on an off automatically.

Here you can see a circuit diagram which shows how the VFD can switch the dust collector on and off automatically:

@CommunityUser5

It has an additional manual switch, so that you can still use the dust collector for other power tools at the same time, like a circular saw and others, while the VFD can switch it on and off automatically (by the CNC) at the same time.

There are however other ways to switch your dust collection on and off than a relay directly connected to the VFD control output. Big dust collection system manufacturers offer solutions where you simply put an inductive sensor contactlessly over the motor cable of a power tool and it senses if it’s on and turns dust collection on. One example is shown here: Felder automatic start of dust extraction system. Another is the iVAC Pro Switch. In those cases, you would put the inductive sensor over the spindle cable, which means the VFD output cable, not the VFD input cable.

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