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Old 11-22-2022, 01:11 PM
Pontiac Freak Pontiac Freak is offline
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Default JET VBS-400 Vertical Band Saw Wiring

Hi All, Just picked up a Jet VBS-400 bandsaw with a 2hp 3 phase motor. Bought the only manual I can find which is a operators manual. It doesnt give me the wiring that I need. I am trying to hook it up to my phase converter but the saw just has a bar on the back with wires going to the switches and other bars at the top but I dont know which is which on the bar. Has anyone got one of these machines or wired one?
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Old 11-22-2022, 02:10 PM
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Got some pictures?
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Old 11-22-2022, 04:23 PM
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Default Pictures of the Setup

Here are the pictures of the bar where power comes in. Trying to figure out how to wire it. Nothing in the manual or online so far.
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Old 11-22-2022, 04:39 PM
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I think the bottom picture tells the wiring. I think for 220 3 phase, you will connect the three main power wires to number 1, 2, 3. The connections will need to match the number on the wires coming out of the motor then.


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Old 11-22-2022, 05:06 PM
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The print shows the jumpers for 22 and 480
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Old 11-22-2022, 06:44 PM
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Quote:
Originally Posted by digr View Post
The print shows the jumpers for 22 and 480
Thanks for that print but it is for a different saw. The jumpers I have the print on the back of the panel. But, the issue is hooking the power up to the saw. The jumpers are on the distribution panel. I took some more pictures to help explain. The cover with the jumper settings for 230-460v is on the column, everthing comes up from the bottom inlet to this. I need to know how to wire power coming into the bottom connector.

1st pics are the jumper settings panel and 2nd pics are the lower inlet for power.
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Old 11-22-2022, 07:42 PM
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Someone will be along that knows more than I but I see no way to hook power where you want it with the jumpers the way they are.
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Old 11-22-2022, 09:50 PM
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Your saw is currently wired for 480 volt 3 phase incoming. do you have a 230 vac converter?

In the picture of the wiring diagram you are looking at the numbered terminal strips.

After you have the jumpers set for 230 volts you can connect lines 1,2,3, to terminals 123 on the terminal strip marked 1 through 9, this is actually going to the motor. It looks like the wires are connected to 123 on the right side and just not on the left of the terminal strip.

The other strip with the yellow jumpers on it are to your control transformer. Change those jumpers to match your incoming 230 VAC from your phase converter. That is what I can tell,

the small terminal strip bolted to the side of the machine I do not know what it does. I do not know what to connect there. I would be guessing there based on the pictures. ( I see the red writing you put on the picture. ) You will have to do some digging on the connector you have there for the incoming power connection to see. It looks like you have a cord with 4 conductors and 2 conductors separate. Where do those wires go once they go back in the column? Do they go to 123 on the motor terminal strip?

You have 6 wires on the small terminal strip. 3 hots and a ground, this looks to be where the power comes in. so find the ground and mark it first, then find the ones going to the motor and the control transformer should be 2 of those. the lone 3 phase wire only goes to the motor.

Is that cord with the 4 conductors hanging out the back of the machine?

As an aside that wiring looks old and cold be bare to the base of the machine and looks dangerous. If the insulation is breaking off when you move wires around change it out.

Scott
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Old 11-22-2022, 10:01 PM
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Do you have pictures of inside the cabinet. Although not the same model, the diagram posted shows a contactor KM1 supplying input power to 1,2,3.

I see doubled up wires on the right side of 1,2,3. 3 red wires and 3 other wires labeled with 1,2,3. I'm guessing those three red wires go to the contactor, the other three go to the motor. You'll have to trace where these go, then some of those wires on the terminal block on the backside of machine should lead to the contactor.

Looks like you are configured for 460v right now, since 456 jumpered with 789. I can't see your secondary terminal block since it's laying upside down.

Just guessing based on the pictures.
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  #10  
Old 11-23-2022, 08:51 PM
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https://www.electram.com/1/rotary-phase-converters.php
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