RogueFab
Plastic
- Joined
- Oct 15, 2013
- Location
- Portland, Oregon
Hey everyone. I have a new-to-me Startrite H250A bandsaw. It's a nice machine, auto feed, auto clamp, part counter, etc. This one came from the factory wired for 460V. I only have 230V three phase power. I know that it can be wired for 230V, but I contacted the motor manufacturers for wiring diagrams and they are not interested in providing service unless it is for new sales.
hopefully this is in the correct forum. I didn't see a place for machine hookup, and it seemed to fit here the best.
I know this is what I need to do:
1. Verify the wires can all handle double the current (460V to 230V will double current)
2. Replace overloads with 2x size (See above)
3. Rewire all 3 motors for 230V 3PH input (I need help with this)
4. Rewire or replace control transformer for the same output voltage at 230V input. (I need help with this)
I have done 1 and 2, this machine has 10GA ran to all the motors, which is plenty. It's numbers 3 and 4 that I am stuck on.
I can draw these junction boxes and terminals so they can be more easily understood, and I plan to before the day is up.
Primary drive motor (turns the drive wheel for the band saw blade)
Data Plate
Junction Box
Secondary motor (drives roller system that advances material in saw)
Data Plate
Junction Box
Hydraulics motor (runs the electric/hydraulic system for head raise/lower and clamping)
Data Plate
Junction Box
See next post for photos
Control Tansformer (labeled 460/3/60, Terminals "0, 220, 380, 415, 440, 0, 110")
see next post for photos
hopefully this is in the correct forum. I didn't see a place for machine hookup, and it seemed to fit here the best.
I know this is what I need to do:
1. Verify the wires can all handle double the current (460V to 230V will double current)
2. Replace overloads with 2x size (See above)
3. Rewire all 3 motors for 230V 3PH input (I need help with this)
4. Rewire or replace control transformer for the same output voltage at 230V input. (I need help with this)
I have done 1 and 2, this machine has 10GA ran to all the motors, which is plenty. It's numbers 3 and 4 that I am stuck on.
I can draw these junction boxes and terminals so they can be more easily understood, and I plan to before the day is up.
Primary drive motor (turns the drive wheel for the band saw blade)
Data Plate
Junction Box
Secondary motor (drives roller system that advances material in saw)
Data Plate
Junction Box
Hydraulics motor (runs the electric/hydraulic system for head raise/lower and clamping)
Data Plate
Junction Box
See next post for photos
Control Tansformer (labeled 460/3/60, Terminals "0, 220, 380, 415, 440, 0, 110")
see next post for photos