I’m installing a Masso Relay and power distribution block and want to power the relay correctly. I have searched Masso, here and the 1F forum but can’t find much specific info. Although Masso says to use 24v power supply, is it possible or even recommended to tap into the power from the 1F that feeds the Masso G3 to power the relay?
I don’t want to fry anything!
@Oseanmc if I were you I would use the power from the Onefinity power supply.
Masso’s video on the relay module clearly states that a 24V power supply should be used, but not the aux power ports of the Masson it self. That leaves on with the choice of either the power supply for the Masso touch or some additional power supply.
Since the Onefinity voltage meets their requirements, one needs to ensure that the power supply can provide enough current to run the relays. PwnCNC’s Masso Relay product page has an image that shows the relay module being powered by the same supply as the Masso. That image also shows a 1 A fuse. The image appears to come from Masso’s documentation. OneFinity’s documentation also shows a 1 A Masso Fuse. Therefore, it seems that both Masso and Onefinity think that 1 Amp @ 24V is enough to run the Masso controller and relay.
If more current is needed the fuse will protect the Onefinity power supply, that is the purpose of the fuse, and you can just replace the fuse.
Video’s relevant points.
@Eriz Thank you, I did see the diagram and fuse information from Masso. It shows the fuse located between the power supply and G3 controller. I know the Onefinity power box has a 1 amp fuse in it and suspect that takes care the fusing requirement for the incoming power.
If I was running the relay on a separate power supply it would need a fuse also.
So, if I splice a power distribution block and relay from the 1F power going to the G3 do you suppose there needs to be an additional fuse either before the connection to the G3 and Dist/Relay or only to the Dist/Relay leg or not at all since the 1F power supply is already equiped with a 1 amp fuse?
I’m probably overthinking this but don’t want a massive paperweight in my shop!
The fuse is protecting the Onefinity power supply. If you are using the Onefinity power supply there is no need for a second fuse.
A distribution block may not be needed. In the Masso documentation I see two terminals for GND and two for PWR. I haven’t received my Onefinity yet, but if both terminals are not in use you can use those empty slots to power the relay module. If you want to make it look pretty you could use a ferruling tool like the one linked below ($30.99)
Good to know. I do need a distribution block because I have several add on features and I’m all out of space for power leads at the moment. I’m running an ATC and adding a pneumatic dust boot. I have the crimper 22 awg ferrules and wire.
or you could do the easy thing, and add a power supply, then connect the ground wires.
I just tied mine into the main 24v from the Masso controller (last block on the right on top). I’ve got that going to a power block that I installed (since I’ve used up all of the blocks on the Masso controller). The power block feeds the relay (+ and grd). The relay is filled with components and I haven’t had any trouble at all. I don’t have any fuses between the 24v power and the relay power.
Thanks. I ended up doing the same thing and works fine.