Denford Triac VMC with ATC Conversion / Fix

**i2i** · 20-06-2015

Originally Posted by Chaz

Are the connections not 4 and 5 for enable? I can see relay SFR and GR there needed to enable. Connection 7 on mine looks like one of the tacho connections.

Either way can be used, 4 and 5 or 5 and 7 depends on the application. When the tacho option is used 6 and 7 are used for this and 4 and 5 are used for the spindle run, if yours is wired that way use 4 and 5. The guard relay will be in the circuit to limit the operation of the spindle if the cover is up, but the sgr would still be the relay that connects 4 and 5 on the sprint board.

PS. sfr may have replaced sgr.....edit...... Looking at the other photos sfr has replaced sgr, and common practice with denford machines is to control the relay on the ground side. To the left of the sfr is the srr, this reverses the spindle by changing the polarity to the motor.

**Chaz** · 20-06-2015

Originally Posted by i2i

Either way can be used, 4 and 5 or 5 and 7 depends on the application. When the tacho option is used 6 and 7 are used for this and 4 and 5 are used for the spindle run, if yours is wired that way use 4 and 5. The guard relay will be in the circuit to limit the operation of the spindle if the cover is up, but the sgr would still be the relay that connects 4 and 5 on the sprint board.

PS. sfr may have replaced sgr.....edit...... Looking at the other photos sfr has replaced sgr, and common practice with denford machines is to control the relay on the ground side. To the left of the sfr is the srr, this reverses the spindle by changing the polarity to the motor.

Thanks.

A bit stuck at the moment. Have wired in the Y encoder but a bit of confusion about whats needed next. I know I need 0V and 10V Ref but a bit confusing as I also have an enable option. Going to power up now and see if I can get something moving, still need to config the CS Labs and install Mach, so still a bit to go yet I think before I can get anything moving.

I managed to get 110V, need to see whats holding out the main contactor now, must be an E stop or similar.

**JAZZCNC** · 20-06-2015

Originally Posted by Chaz

Thanks.A bit stuck at the moment. Have wired in the Y encoder but a bit of confusion about whats needed next. I know I need 0V and 10V Ref but a bit confusing as I also have an enable option.

Connect the enable on drive to an output on IP-A and set the Enable 1-6 Output in Mach3 to port10 pin(which ever used). You can connect all drives to same pin to save outputs if you like.!
This will enable the drives when Mach is Reset and disable when Mach isn't.

If you want an extra layer of safety then run this signal thru your E-stop relay. So Enable can only happen if E-stop not pressed. This way the Axis won't be enabled even of Mach is reset( Which it shouldn't if E-stop is done correctly)

**Chaz** · 20-06-2015

Originally Posted by JAZZCNC

Connect the enable on drive to an output on IP-A and set the Enable 1-6 Output in Mach3 to port10 pin(which ever used). You can connect all drives to same pin to save outputs if you like.!
This will enable the drives when Mach is Reset and disable when Mach isn't.

If you want an extra layer of safety then run this signal thru your E-stop relay. So Enable can only happen if E-stop not pressed. This way the Axis won't be enabled even of Mach is reset( Which it shouldn't if E-stop is done correctly)

So I need to simply bridge between terminal 14 and 15 of the IRTA Drive. What function do I use on the CS Labs unit? Analog Out? Does this push out a voltage or does it simply close a circuit and work as a softswitch?

If I look at the analog out options, I have Analog output 0 (0-10V on pin 7) and Analog output 1 (0-10V on pin 8). I would have thought I needed to use the digital outputs? Sorry, a little bit confused, just want to 'make' a connection between 2 points.

**Chaz** · 20-06-2015

Actually, from the 15 pin breakout, i dont have a wire to allow a bridge. Something else is holding out the DER relay, need to find that.

This could be changed later but needs rewiring.

**Chaz** · 20-06-2015

OK, DER Relay working, it was the door latch holding it out.

Drives enabled, no movement yet. Not sure how to configure anything related to steps or similar, do I need to with a servo?

**JAZZCNC** · 20-06-2015

Chaz to many over lapping questions it's going to get confusing and dangerous if not careful.!!

Regards the Outputs it's Digital output you need not analog.
Analog is only for controling devices that need 0-10V Also don't confuse the Motor Analog outputs which +/- 10V with 0-10V.!! . .. Very easy done.

Regards motor tuning and setup then yes you still need to set this up. You'll need to know the Encoder resolution, any gearing ratio and the Pitch of the ballscrews to workout the correct steps Per unit in Motor tuning.

**Chaz** · 20-06-2015

OK, Y moves when I push in the DER manually. Not sure why - I dont know if the machine is trying to home or something else. If I restart Mach 3, does it 'forget' what it was told before?

Glad ive got movement, not sure whats impacting DER relay yet. It was the door latch, thats sorted, something else is now holding it out. Looking to try and reverse the direction, where is the 'jog wheel' in Mach 3? Ive seen a pic of one, is it a plugin?