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本帖最后由 td456 于 2010-3-26 14:14 编辑
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Two cutler –hammer advantage starters are doing the same thing:
^' v" b' G1 A1 P8 f7 u After start 2-3 times, they will quit working, if you toggle the start and stop buttons on DCS screen , you will get another 2-3 running before they quit working again. + A9 }! W6 I& q/ I6 W
It is a cycle.
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We isolate the network control and use the local start and stop only, the problem remains.% S8 C) @+ H8 Z$ ?! {$ f
Swap one of the defective buckets with a good one, the new bucket works fine.
1 s/ W1 T( J* w" d! PThe problem should be inside the bucket.& ]2 O% Z7 M9 Z3 g7 p, B$ O) c
- Z5 W8 s. f2 B2 zWhen the problem happened, we observed that the contactor has a pulling action but will not seal.1 R! ~; H# X# V% H& }; q
Use a terminating screw divers to push in the contactor, it will not seal either.
6 S( s% s: P8 W, b+ [) p/ wConfirm with TECH support this should be a problem with the control circuit board inside the advantage starter, we bought two new control circuit boards and replaced the old ones, the problem is still the same.
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! U$ b% m! V. u' v& RThe next thing we can think of is the coil, we took the coil out to have a close look.0 L) I' K' Z% s. P' q: Q& O
They have a fork to pinch inside the two leads to make connection, it is not a good design at all. We soldered the connection and tried again.' o. d) F% D2 z2 a: Y( V% ^
It is getting better this time, we have 7-8 times of running before it quit working.
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( t2 }7 h: L% _- {3 CThe coil should be the problem, we ordered two of them. But it will take 5-6 weeks for us to get them. % N+ R" H% @! z
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Do you guys have any input on this issue? |
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