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Forums13
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Apr 9th, 2026
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Joined: Sep 2011
Posts: 26
newbie
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newbie
Joined: Sep 2011
Posts: 26 |
1st series TAC50. Can't get my WDPF output to go high to run unit. Checked capacitors (all at or close 2000 microfarads), Swapped current regulator, QSS/QSR interface, inverter interface and motor IGBT and ribbon cable between inveter and current regulator. Checked all connections. It came up for a few seconds all on it own and did a recovery run but after changing inverter brd it will not come back up. Any ideas or suggestions?
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Joined: Dec 2010
Posts: 639 Likes: 4
addict
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addict
Joined: Dec 2010
Posts: 639 Likes: 4 |
Isn't there a resistor "RSS" right above that cap bank on the right? I don't remember it it's actually on that QSS interface board you're referring to. If it opens...your dead.
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HW PM
by Chris, January 13
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