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peterd
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Square D Altivar 28 Invertor Drive

05/09/2012 10:31 AM

Drive runs for a few seconds, stops and displays 'OFH'. No list of fault messages in any manuals I can find. Any ideas?

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SolarEagle
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#1

Re: Square D Altivar 28 Invertor Drive

05/09/2012 11:09 AM

What does the sales rep say?

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peterd
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Location: Willenhall, UK
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#2
In reply to #1

Re: Square D Altivar 28 Invertor Drive

05/09/2012 11:15 AM

The rep says that as production stopped in 1999 thew best he can do is sell us a new unit.

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JRaef
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#3

Re: Square D Altivar 28 Invertor Drive

05/09/2012 12:20 PM

Took me all of 30 seconds to find and download a manual, in which it says that code means the inverter temperature is too high. So if it had a fan, the fan likely died, or if not, the heat sink is probably incredibly dirty. or you have located in a place that exceeds the temperature rating of the drive, in this case 40C. Did you put it in a box with no thought of ventilation?

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peterd
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Location: Willenhall, UK
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#5
In reply to #3

Re: Square D Altivar 28 Invertor Drive

05/11/2012 5:08 AM

Cooling was ok. Found that drive had faulty control board by swapping board from other unit. Now have to get faulty board repaired as machine from which I borrowed good board is due to go back on line.

Thanks for suggestions, I did go on line originally and found 2 different manuals, neither of them had a fault list.

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Anonymous Poster #1
#4

Re: Square D Altivar 28 Invertor Drive

05/10/2012 12:48 AM

Oh F...ing Hell!
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