Author Topic: MC050 PVG Power output limits  (Read 5120 times)

Offline oiltronic

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MC050 PVG Power output limits
« on: October 01, 2011, 02:15:21 AM »
Can I use one MC050-010 PVG Power pin (p34-36) to power more than 3 PVEA coils, say, 5?  The controller output pin is rated 3A while the PVEA coils draw only 0.17A.

Offline Stefan

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Re: MC050 PVG Power output limits
« Reply #1 on: October 14, 2011, 04:23:32 PM »
Yes, since these are Digital outputs.

It's not possible with PWM outputs.

Best regards
Stefan Arvidsson

Offline Marbek_Elektronik

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Re: MC050 PVG Power output limits
« Reply #2 on: September 02, 2012, 09:53:29 AM »
But whats about driving PVEH at voltages at 10V (machine starting for example)?
At 24V you have 0,3A, at 12V: 0,57A, at 10V: 0,7A (10Watt) !
Now, if you drive 5 PVEHs, the current will be 3,5A, which is to big!

I think, you must not drive more then 4 PVEHs on a digital output PIN.
PVEA will be no problem because of lower current.

Is this OK?
Marbek Elektronik, Dipl.-Ing. Bernd Konrad
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Quax76

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Re: MC050 PVG Power output limits
« Reply #3 on: September 03, 2012, 08:34:31 AM »
I think this should not be a problem because you only power on the PVE when a valve is actuated.
How great is the likelihood, that you use 5 valves at the starting of the machine?

Offline Marbek_Elektronik

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Re: MC050 PVG Power output limits
« Reply #4 on: September 11, 2012, 08:55:55 AM »
It is not only by starting a machine.
Perhaps there are several switches between Batterie and controller, or long cables.
I have seen a lot of this in practice.
So, if you use outputs, which are combined, I think, 3 PVEHs are enough.
Marbek Elektronik, Dipl.-Ing. Bernd Konrad
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Offline Marbek_Elektronik

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Re: MC050 PVG Power output limits
« Reply #5 on: September 11, 2012, 09:01:59 AM »
By using paired outputs, the maximum current at 70°C (in the box!) is 4A for both!
One output can only drive 2A.
If you have 3 PVEs, it is 0,7A/PVE!
Marbek Elektronik, Dipl.-Ing. Bernd Konrad
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