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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:: W- F. t: S2 \; K3 ^( V
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. 8 o7 Z& U) r# P9 @
It is a cycle.) e" N8 g4 q- B$ Q
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We isolate the network control and use the local start and stop only, the problem remains.
$ J- H$ Z) D5 W+ y# W+ L* oSwap one of the defective buckets with a good one, the new bucket works fine.- r5 P$ B. J% H o7 I. M! E
The problem should be inside the bucket.
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When the problem happened, we observed that the contactor has a pulling action but will not seal.
: H E7 n& R9 zUse a terminating screw divers to push in the contactor, it will not seal either.: M7 e( q- g4 P8 |: }+ Y; G
Confirm 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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9 r/ p1 H: B1 i3 u) jThe next thing we can think of is the coil, we took the coil out to have a close look.& }4 h3 P! n9 @1 f
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.1 d; J& R4 z5 z: Z4 J& E' F+ s
It is getting better this time, we have 7-8 times of running before it quit working.
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The coil should be the problem, we ordered two of them. But it will take 5-6 weeks for us to get them. 9 I N y; s- l: I! {( N |
& X( w8 R% _6 K! m7 h9 mDo you guys have any input on this issue? |
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