Wiring an industrial cabinet for super 7
|Jeff Barnett||01/04/2019 18:59:09|
|9 forum posts|
I have a single phase Myford Super 7, I did not get a cabinet with it, so I have just bought an industrial style cabinet for it.
I think the cabinet is wired for 3 phase. See pics below:
The loose switch in the pictures is the coolant switch.
I have some specific questions:
1, Can anybody confirm this is a panel for a 3 phase motor?
2, Can anybody confirm a rewiring scheme to wire up my single phase motor?
3, The panel has high and low speed, that I believe would require special 2 speed motor, single or 3 phase. Is that true?
4, Are my options limited to ? :
4a, Rewire for single phase
4b, Install an inverter. If so am I correct in thinking I need a three phase motor, as well as an inverter?
4C Any other options?
Thanks in advance
|Mike Poole||01/04/2019 20:25:18|
2020 forum posts
The coil voltage on the contactor is going to need to be 240v for a single phase panel, it may be simpler to replace the contactor if it is 415v as tracking down a 240 coil is likely to be difficult. It may be possible to unwind some turns from the coil bobbin if you fancy a challenge.
The two speed motor would make it likely that the cabinet was for a Trilever ML7.
Apart from the contactor issue it should be possible to rewire for single phase.
A VFD is almost universally recommended, they have some limitations but the pluses trump the negatives for most people.
Edited By Mike Poole on 01/04/2019 20:34:16
|Jeff Barnett||01/04/2019 20:47:05|
|9 forum posts|
I can check that by wiring to 240 and checking it operates OK. Will post results.
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