Mirac Turret info needed.
Posted: Mon 21 Aug , 2023 12:17 pm
Hi folks and thanks for having me .
I have had a Denford Mirac for some time and am slowly but progressively trying to make it work.
The previous owner said it had been working but "it just stopped loading G code". From what I have seen I am now taking this with a massive pinch of salt but I am not unhappy as for the price it is still good value to me .
It has a six station RH80 turret toolchanger , and I have all the manuals for the machine .
I has a Keb inverter and two contactors which select spindle motor or turret motor, which I understand is a later control system. But I am struggling to understand features of the supply .
It would seem that the inverter gives a 230v 3 ph supply to either the spindle or the toolchanger ( clearly not simultaneously) yet the Baruffaldi RH80 has a label which states 110v and this is my puzzle. There is no evidence that this is not the original unit, and the schematics show no transformer in the supply, so in order to plan my project I really need to understand how the supply voltage is changed to be suitable for the Turret motor. Can anyone help with this please .
I do not have a diagram for the tool changer so I also wonder if its motor is wired in delta or star configuration.
Any help would be appreciated
TIA John
I have had a Denford Mirac for some time and am slowly but progressively trying to make it work.
The previous owner said it had been working but "it just stopped loading G code". From what I have seen I am now taking this with a massive pinch of salt but I am not unhappy as for the price it is still good value to me .
It has a six station RH80 turret toolchanger , and I have all the manuals for the machine .
I has a Keb inverter and two contactors which select spindle motor or turret motor, which I understand is a later control system. But I am struggling to understand features of the supply .
It would seem that the inverter gives a 230v 3 ph supply to either the spindle or the toolchanger ( clearly not simultaneously) yet the Baruffaldi RH80 has a label which states 110v and this is my puzzle. There is no evidence that this is not the original unit, and the schematics show no transformer in the supply, so in order to plan my project I really need to understand how the supply voltage is changed to be suitable for the Turret motor. Can anyone help with this please .
I do not have a diagram for the tool changer so I also wonder if its motor is wired in delta or star configuration.
Any help would be appreciated
TIA John