Boxford 165 HMC

[uli12us]

Boxford write to me, that maybe I have the only machine ever made, so don't hope to get any usable info from them. But I think from the numbers, they have made at least 10 or someone have said 16 machines.

I hope, I come to the machine in the next days, then I'll try to draw a little of the wiring diagram at least for the parts, that are not exist in the 190VMC. Maybe the diagram for the 230 would be better, because this machine have a tool carousel like ours.
uli

[chris w]

Hi, should I be seeing a voltage displayed on the Mach 3 screen when the spindle is running, it does display the commanded speed but no voltage.
there is a sensor mounted on the rear of the spindle looking at a disc with holes in it I followed back the wires from that sensor and they go into a terminal rail but nothing comes out, is that sensor only for spindle synchronisation like ridgid tapping??
if there is no voltage feedback could this be the reason that the spindle is creeping when I power up?
chris.

[uli12us]

As I know the slotted disc is for feedback to the lenze drive via the controller board (the large board with many connectors) I don't think that rigid tapping is possible with this machines, and you don't have as much torque as you need for tapping. The motor has with the small toothed belt gear a maximum of 2Nm. That is enough only for M6 in Alu or M4 in Steel.

I hope I come in the next days to the machine, then I make some pictures and a little drawing of the
part with the motordriver. Why don't you use a Multimeter to see if the voltage is changing from your controller board. If yes, then something in the harness from controller to driver is not ok.

[chris w]

If I fit a potentiometer between the 10v and -10v and it works am I not just covering up some problem that needs fixing by another method I mean if the slider was meant to be there would they not have fit it at the factory?

[JAZZCNC]

Hi, should I be seeing a voltage displayed on the Mach 3 screen when the spindle is running, it does display the commanded speed but no voltage.
there is a sensor mounted on the rear of the spindle looking at a disc with holes in it I followed back the wires from that sensor and they go into a terminal rail but nothing comes out, is that sensor only for spindle synchronisation like ridgid tapping??
if there is no voltage feedback could this be the reason that the spindle is creeping when I power up?
chris.

No you won't see a voltage on the screen but you will see Analog voltage on the Cslabs Plugin control if you want to see the voltage.

Regards the creeping have you set the spindle control up correctly regards Pulleys etc.? You may be getting a Voltage on the pin if not.!
Could be stray noise but I doubt it.

Thou to be honest the Spindle shouldn't be spinning because the Lenze shouldn't run until it gets a signal for the Run command no matter is Ref voltage is being applied or not. The REf voltage should just say run at this speed when you do turn on.!
Are you sure you have it wired correctly.? Does the Lenze have an enable or Run input.?

[uli12us]

He said, the wiring is made from a friend, but he hadn't wired the spindle drive correct.
This part should be the easiest of all, but without experience, he shouldn't make anything.
I'll try to make a correct drawing this weekend, maybe then he can wiring it by herself.

[chris w]

Ok the spindle creep was sorted with the nMIN pot on the lenze and I adjusted the nMAX pot to match the commanded speed to the actual spindle speed, as I understand it my man set the ratio within Mach,
the CS analogue I/o number 1 is connected to terminal number 4 on the isolation card so I am controlling the spindle through Mach but not through the forward and reversing relays.
uli I see the wiring on your machine terminal number 4 on isolation card is a white wire where does that go to?

i spoke to someone at boxford it's been too long ago for them to support this machine any longer as they have moved offices and cleared out any info they had on this model.
on the plus side of this the more I look at it and liable things up its starting to make more sense, but I just don't understand relays!
chris.

[uli12us]

Thats ridiculous, they don't want, the machine is more or less indentical with the 230VMC. But, if you spoke to a boxford man, can you ask him, if the spindle is identical to the one from the 190 and 300 machine. If I know, I can buy a working spindle, then I can modify the existing spindle for BT30 with toolchanger without the trouble, the modification, don't work. From the motorside its no difference to the 190 (as long as I seen til now) Except the toolcarousel, which is a simple DC-Motor with a beltdrive. which can only run unidirectional til the next position of the stopswitch.If you want to control the spindle speed via the frontswitches, you must connect it to the input clamps of your control unit. IIRC they have 20 ports, which you can use. Its the same with the feedspeedknob, no function without connection.

[chris w]

No all the front switches are not connected the only working switch is the estop but that only knocks off the enable contactor but now I need to include the CS labs into the estop circuit BUT the estop on the machine is 240v which I think would not be ok for the CS labs estop terminals!
i still need to work that one out,
I think 100% control through Mach is ok it offers everything that the machine control panel has to offer but I have a MPG unit plugged into the CS labs which I think is vital to set the machine properly.
when you stated the ridgid tapping is not a really useful option why do we need a reverse on the machine????
is the "direct connection" between CS labs to isolation board going to be a problem because of load on the CS unit??
soooo many questions,