Novaturn toolchanger - interface to mach / non Denford card

All info relating to the Denford NovaTurn CNC lathes

Moderators: Martin, bradders, Steve, Mr Magoo

Post Reply
bpmsl
CNC Expert
CNC Expert
Posts: 142
Joined: Mon 16 Nov , 2009 10:00 am

Novaturn toolchanger - interface to mach / non Denford card

Post by bpmsl » Sat 17 Aug , 2013 16:37 pm

Hi all,
I'm looking at using a usbcnc controller in my novaturn, everthing looks good for the stepper drives and the spindle controller, but I dont know how the toolchanger is interfaced to the control card. Can anyone shed any light?

Any help would be much appreciated.

Many thanks.
Barry M

User avatar
Steve
CNC Guru
CNC Guru
Posts: 1340
Joined: Tue 21 Feb , 2006 16:15 pm
Location: Denford UK

Re: Novaturn toolchanger - interface to mach / non Denford c

Post by Steve » Tue 27 Aug , 2013 9:38 am

The turret motor is a DC motor driven forward by 24V and backwards to lock by 12V. The motor is permenantly energised. The position of the turret is monitored using 3 optical sensors in the turret body providing a grey scale position readout. These go to inputs 3,4 and 5 of the control card.

The attached link is to the schematics.

viewtopic.php?f=42&t=2629

bpmsl
CNC Expert
CNC Expert
Posts: 142
Joined: Mon 16 Nov , 2009 10:00 am

Re: Novaturn toolchanger - interface to mach / non Denford c

Post by bpmsl » Sat 21 Sep , 2013 12:32 pm

Thats great thanks, i'll see what i can do.
cheers
bpm

bpmsl
CNC Expert
CNC Expert
Posts: 142
Joined: Mon 16 Nov , 2009 10:00 am

Re: Novaturn toolchanger - interface to mach / non Denford c

Post by bpmsl » Thu 20 Mar , 2014 13:30 pm

Thanks CNC Guru,
Having finally got round to reviewing the content of the drawings, am I correct in assuming that all I need to do is close the toolpost control card (in the big black box?) connections TPFR circuit (6 and 7) until the outer middle and inner sensors (control box cores 92, 93 and 94) give me 0 or 12v in the appropriate pattern? If so this is much simpler than I could have ever hoped!

Any help much appreciated...

Cheers
BPM

Post Reply