MB6HC Out 9 and VFD/Laser/Servo Drive Difference?
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There are two Out 9 connectors on the Duet3 MB6HC, as far as I can see...
The 5-pin group on the right and the 2-pin Out 9 on the left (see image).
The one on the right seems to be designed as a really convenient way of connecting a PWM/digital converter to run a speed-controlled milling motor (like the AMB 1400 FME-P DI), but seems to provide only 5V-EXT, whereas the one on the left can provide 12 or 24V, depending on how the jumper (just above the Out 7, Out 8 and Out 9 group) is set, but the documentation indicates these are designed intended for fans.
The documentation does say the one on the right provides 5V power and a 5V level signal for a TTL-compatible input to a laser controller (which I'm assuming only relates to a laser), a PWM-to-0 to 10V converter (which I want to use it for), or a servo (which I don't want to use it for).
I understand how to connect (nearly) everything up (thanks to help provided in my other thread), including connecting out9 to the DIN- pin on the converter, but I'm not 100% sure if it's the 5V_EXT that should be connected to the DIN+ pin.
What I'm really asking is this: Is there a direct relationship between the V-OUTLC2 and 5V_EXT pins?
Thanks
Note: One of the advantages of using the PWM header is I can use 4-core cable directly from the header to the converter and keep things a bit tidier!
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@nightowl999 said in MB6HC Out 9 and VFD/Laser/Servo Drive Difference?:
What I'm really asking is this: Is there a direct relationship between the V-OUTLC2 and 5V_EXT pins?
Thanks
V_OUTLC2 is either V_FUSED or 12 volts.
I would not be at all surprised if the 5V_EXT was 5 volts.
There is no relationship.
No sure what you mean about being able to use a 4-core cable.
Frederick
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Hi @fcwilt,
@fcwilt said in MB6HC Out 9 and VFD/Laser/Servo Drive Difference?:
I would not be at all surprised if the 5V_EXT was 5 volts.
I guessed that, too
@fcwilt said in MB6HC Out 9 and VFD/Laser/Servo Drive Difference?:
There is no relationship.
OK, and I understand I can use one or the other out9 pin, but the 5-pin array seems to be specifically there for a laser/VFD/servo, and I'm essentially using a VFD then the 5V-EXT pin should be adequate.
@fcwilt said in MB6HC Out 9 and VFD/Laser/Servo Drive Difference?:
No sure what you mean about being able to use a 4-core cable.
Just that I could use use a single, 4-core cable from the 5-pin array rather than two 2-core cables from two separate headers, is all.
Thanks
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@nightowl999 said in MB6HC Out 9 and VFD/Laser/Servo Drive Difference?:
Just that I could use use a single, 4-core cable from the 5-pin array rather than two 2-core cables from two separate headers, is all.
Yes you can but take into account that it is really a 6 pin array with a 1 pin missing.
Also if you would be using the 12v pin keep in mind the current limits for the 12v supply on the 6HC.
Frederick
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I meant if I was using just the four pins (12V, GND, out9 and 5V_EXT). I don't see the need for the second GND if I use the a busbar to provide a common GND for the milling motor, converter and the Duet3.
I guess what I should be asking is which two pins on the 5-pin array of the Duet3 board correspond to the DIN- and DIN+ on the converter board shown below?
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@nightowl999 said in MB6HC Out 9 and VFD/Laser/Servo Drive Difference?:
I meant if I was using just the four pins (12V, GND, out9 and 5V_EXT). I don't see the need for the second GND if I use the a busbar to provide a common GND for the milling motor, converter and the Duet3.
I guess what I should be asking is which two pins on the 5-pin array of the Duet3 board correspond to the DIN- and DIN+ on the converter board shown below?
The 5V_EXT would be DIN+ and the OUT9 would be DIN-
Frederick
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Thank you, @fcwilt.
For some reason I didn't receive a notification that you'd posted a reply, so apologies for not acknowledging it earlier!
