Orac 1983 unable to change Spindle Speed

All info relating to the Denford ORAC CNC lathes

Moderators: Martin, Steve, Mr Magoo

Post Reply
johnechall
Posts: 18
Joined: Thu 17 May , 2012 7:24 am
Hardware/Software: Denford Orac and Triac on Mach3
Location: North Wales

Orac 1983 unable to change Spindle Speed

Post by johnechall » Sun 03 Jun , 2012 12:49 pm

Hello All, I have a 1983 Orac with a spindle speed problem.
When I start the spindle it reaches a constant speed and I am unable to change the speed
using the -ve and +ve buttons. The bleeper is working but no change in speed.

Hope somebody may be able to help.

User avatar
Lone_Ranger
CNC Expert
CNC Expert
Posts: 221
Joined: Mon 01 Oct , 2007 15:23 pm
Contact:

Re: Orac 1983 unable to change Spindle Speed

Post by Lone_Ranger » Sun 03 Jun , 2012 21:12 pm

johnechall wrote:Hello All, I have a 1983 Orac with a spindle speed problem.
When I start the spindle it reaches a constant speed and I am unable to change the speed
using the -ve and +ve buttons. The bleeper is working but no change in speed.

Hope somebody may be able to help.
Does the machine change speed within a program ? ? If so it is most likely the connections of the ribbon cable from the front keypad to the board.

Regards
Rob

johnechall
Posts: 18
Joined: Thu 17 May , 2012 7:24 am
Hardware/Software: Denford Orac and Triac on Mach3
Location: North Wales

Re: Orac 1983 unable to change Spindle Speed

Post by johnechall » Sun 03 Jun , 2012 21:49 pm

Hello Rob,

Thank you for responding.
No it doesn't change within the program.
It did work fine until I triggered the limit switch on the x axis.

Regards
John

User avatar
Lone_Ranger
CNC Expert
CNC Expert
Posts: 221
Joined: Mon 01 Oct , 2007 15:23 pm
Contact:

Re: Orac 1983 unable to change Spindle Speed

Post by Lone_Ranger » Sun 03 Jun , 2012 22:12 pm

Have you tried the reset buttons underneath the front panel ? ?

Regards
Rob

johnechall
Posts: 18
Joined: Thu 17 May , 2012 7:24 am
Hardware/Software: Denford Orac and Triac on Mach3
Location: North Wales

Re: Orac 1983 unable to change Spindle Speed

Post by johnechall » Sun 03 Jun , 2012 22:21 pm

Yes, everything seems ok. I have ran a program, but spindle speed cannot be changed.

Post Reply