daleyd
Member
- Messages
- 9,832
- Location
- Wrexham, North Wales
With my recent acquisition of an Elliot Omnimill I discovered that the current controls are not really up to much (the prev owner just had the vertical head wired into an inverter and didn’t use the horizontal function, table feed or coolant pump).
So with all that in mind I raided my stash of goodies and found this lot....
A 1.5 kw inverter for both spindles (switched via 2 contactors for horizontal or vertical operation), a 0.75 kw inverter for table drive, a 24 v power supply for hmi, and the hmi itself.
I’ll also need another small inverter for the coolant pump as that is also 3 phase but there won’t be enough room for that in the main box - I have some Siemens 0.75kw ones with a removable display that might sit on the outside quite nicely. I’ll also need to source a box to mount the screen in, probably on a moveable arm around head height.
With my lathe I used a small pendant and switches and then added a small hmi afterwards as a bit of a “handy to have” feature - on this one I think I may not bother with hard buttons at all and have the screen controlling everything via comms (stopping/starting the motors, selecting which motor is in use, speed control etc), aside from an estop if things go pear shaped - which will simplify the wiring somewhat.
I don’t have much free time for the foreseeable so progress may be a bit slow - I also may get my nephew involved as he’s just finished school and is starting an electrical installation course at college - it might make things a bit more interesting for him?
So with all that in mind I raided my stash of goodies and found this lot....
A 1.5 kw inverter for both spindles (switched via 2 contactors for horizontal or vertical operation), a 0.75 kw inverter for table drive, a 24 v power supply for hmi, and the hmi itself.
I’ll also need another small inverter for the coolant pump as that is also 3 phase but there won’t be enough room for that in the main box - I have some Siemens 0.75kw ones with a removable display that might sit on the outside quite nicely. I’ll also need to source a box to mount the screen in, probably on a moveable arm around head height.
With my lathe I used a small pendant and switches and then added a small hmi afterwards as a bit of a “handy to have” feature - on this one I think I may not bother with hard buttons at all and have the screen controlling everything via comms (stopping/starting the motors, selecting which motor is in use, speed control etc), aside from an estop if things go pear shaped - which will simplify the wiring somewhat.
I don’t have much free time for the foreseeable so progress may be a bit slow - I also may get my nephew involved as he’s just finished school and is starting an electrical installation course at college - it might make things a bit more interesting for him?