Thread: Lynx SM 16 wiring anomoly - help
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15-09-2020 #1
Got a Lynx SM 16 controlling a servo spindle drive, it has a contactor between the main power supply (240v) and the lynx. However the contactor seems to be wired so the live is going to the Neutral on the Lynx. I am a little worried as i do not want to apply power and blow it up. See picture:
(PS: the contactor was pre-wired - I didn't do it)
Pic below has contactor info inlaid
Please advise
thanksEvery time I am wrong - the World makes a little less sense.
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15-09-2020 #2
While it's not technically correct it won't do any damage because it's AC. However, for the 1 min, it takes to swap it over then I would do so just to save any confusion.
-use common sense, if you lack it, there is no software to help that.
Email: [email protected]
Web site: www.jazzcnc.co.uk
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15-09-2020 #3
Thank you - I don't suppose you know anything about contactors do you?
This one looks wired as if it is an AC coil (the 240v neutral loops back into the coil). Any idea what sort of ampage the coil will use on these? I have looked all over tinterweb and can find zero info.
I was wanting to put a 1 amp fuse on it.
thanks againEvery time I am wrong - the World makes a little less sense.
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15-09-2020 #4-use common sense, if you lack it, there is no software to help that.
Email: [email protected]
Web site: www.jazzcnc.co.uk
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The Following User Says Thank You to JAZZCNC For This Useful Post:
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15-09-2020 #5
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16-09-2020 #6
One last thing, if I may. The manual seems to be a bit ambiguous with regards to the 0 - 10v speed controller input.
"Set speed Term 3: Potentiometer minimum or 0 to +10V, impedence 100K ohm filtered"
So, Potentiomemrer or 0 - 10v, yep all good... impedence 100K filtered???
The diagram shows:
The reason I ask is that only 2 wires were connected originally (to 2 and 3). I'm guessing a 0 - 10v.
I do not quite understand this sign in the picture:
I am connecting to an MB3 breakout board with a 0 - 10v, page 20 on the link below for details
http://www.cncroom.com/downloads/MB3...al%20E13R1.pdf
Any help gratefully recievedEvery time I am wrong - the World makes a little less sense.
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16-09-2020 #7
I would guess that 100K impedance means that internally the input has the equivalent of a 100K resistor (impedance is AC resistance, so not quite the same as DC resistance). This is to limit current when the potentiometer is at the 10v end.
My further guess is that the input has an internal filter.
Please somebody inform me if I am way off beam!
Rob.
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16-09-2020 #8
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16-09-2020 #9
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16-09-2020 #10
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