Denford Triac VMC with ATC Conversion / Fix

[JAZZCNC]

remember the need for isolation on the 0-10, there cannot be a connection to ground it must be dc isolated.

He's good to Go i2i the IP-A 0-10v is isolated. As are all the I/O on the Cslabs controllers.!

[i2i]

stunning, they look pretty good, i wish they were about when i had my three phase triac. Saying that i still have the servo's and drives here somewhere, could be good for one of my quatros.

[Chaz]

On the topic of isolation, when providing 24V for the purpose of something like a limit switch, should this come from the same 24V that powers the CS Labs unit or one of the outputs of the device itself to try provide some level of isolation?

[Chaz]

i2i, I checked the measurements of the missing actuator last night in terms of the 2 threaded elements. The smaller end is M8 but I suspect fine thread. I tried to screw in a standard M8 bolt which it accepted but then stopped.

The hole size for mounting is just over 21mm, I think on the phone yesterday you thought this might be 27mm ish?

[i2i]

i don't remember the m8 thread being fine, and the mounting thread could be 22mm. It's been quite a while since i did one, check the one you have on there.

[Chaz]

i don't remember the m8 thread being fine, and the mounting thread could be 22mm. It's been quite a while since i did one, check the one you have on there.

I thought it was M8 fine simply as the standard M8 bolt I have didnt thread, it started and then stopped. Could have been dirt but felt like a different thread.

In terms of the mounting, yes, its around 22mm. The parker units I was looking at seem to be larger, might need to look at another option. RS Components has a number of actuators, not cheap, but have stock and variety.

[m_c]

RS are expensive for pneumatics, but they're mostly supplying repairers who will pay extra to get a machine back up and running quickly. Parker are also expensive if you're paying full price, but machine builders get quite big discounts, which is why they're so popular.
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Try the Norgren catalogue to see if you can match the cylinders - http://www.norgren.com/uk/info/12/actuators
Once you have a part number, try googling it to see who can supply it. I've not used pneumatic actuators for a long time, but the hardest part was always identifying what you need.
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There is a possibility the threads could be imperial, so could be worth investing in a couple sets of imperial and metric thread pitch gauges, as pneumatics/hydraulics still use quite a bit of imperial.

[JAZZCNC]

On the topic of isolation, when providing 24V for the purpose of something like a limit switch, should this come from the same 24V that powers the CS Labs unit or one of the outputs of the device itself to try provide some level of isolation?

For limits Just use the same source that you power the unit with. But if you are keeping full Isolation using a separate source then best pulling from this and powering the unit for it's own personal source.

Personally I just pull from one source and never had any issues.