Stainless00
Plastic
- Joined
- Aug 19, 2018
I've just bought a 2008 Mini Mill 2 which has previously been running on 3 phase. My understanding is that this machine is capable of running on a 240v single phase connection which I am attempting to do, however I am somewhat confused by the connection details.
The connection details in the operator's manual state:
"For single phase operation, only terminals L1 and L3 on the circuit breaker are used ... L2 should be left open", which is fine, but I am wondering if the connection is polarity specific, i.e does live go to L1 and neutral go to L2, vice versa, or are the connections are non-specific?
The next section goes onto describe the connections on the T5 transformer, which I'm fine with.
Section 3 goes onto mention the main transformer located to the bottom right of the cabinet and makes mentions of two input connections located on "TB2" - Terminal board 2, and instructs where to connect "Wire 74", depending on the voltage. The problem I seem to have is that no Terminal board 2 seems to be present in my machine.
The only connections I have from the transfomer are:
A twisted black and red pair which leads to the power supply board, located next to the main breaker.
A connector (two blue and one purple wire) which is connected to the 320v power supply and labelled 230v to 300v.
A connector (two brown wires and one grey) which is not connected to anything but labelled 366v to 395v
A connector (yellow and two red wires) which joins on to another connector and then off to the main breaker.
Additionally, on the transformer is has a sticker which states "Check the volatge at the main cicruit breaker, then select the proper connector on this transformer"
Finally, the instructions mention to check the DC bus voltage between pins 6 & 7. I cannot seem to find the DC bus, I assume that this is different on my machine too?
If anyone could shed some light on it all, I'd be very grateful.
Many thanks.
The connection details in the operator's manual state:
"For single phase operation, only terminals L1 and L3 on the circuit breaker are used ... L2 should be left open", which is fine, but I am wondering if the connection is polarity specific, i.e does live go to L1 and neutral go to L2, vice versa, or are the connections are non-specific?
The next section goes onto describe the connections on the T5 transformer, which I'm fine with.
Section 3 goes onto mention the main transformer located to the bottom right of the cabinet and makes mentions of two input connections located on "TB2" - Terminal board 2, and instructs where to connect "Wire 74", depending on the voltage. The problem I seem to have is that no Terminal board 2 seems to be present in my machine.
The only connections I have from the transfomer are:
A twisted black and red pair which leads to the power supply board, located next to the main breaker.
A connector (two blue and one purple wire) which is connected to the 320v power supply and labelled 230v to 300v.
A connector (two brown wires and one grey) which is not connected to anything but labelled 366v to 395v
A connector (yellow and two red wires) which joins on to another connector and then off to the main breaker.
Additionally, on the transformer is has a sticker which states "Check the volatge at the main cicruit breaker, then select the proper connector on this transformer"
Finally, the instructions mention to check the DC bus voltage between pins 6 & 7. I cannot seem to find the DC bus, I assume that this is different on my machine too?
If anyone could shed some light on it all, I'd be very grateful.
Many thanks.