Re: Galil Motion Control CNC Router W/Delta Servos Few Questions
I'll tackle part of this, I have no experience with Mach4, but over 20 years experience with Galil products. I use Galil in all of my machines.
Originally Posted by
tpinto
We purchased a Galil- DMC-4153 motion control and I'm in WAY over my head.
A DMC-4050 would have been a better choice, more flexible, but the 4153 will work.
1. Jinan wouldn't give us a wiring diagram so we decided to rip everything out and start over..... The had the brake on a delay relay but galil has delay built in so I don't think I need this....does that sound right?
Good choice ripping out the original controls. The Galil has no delay built in, you will have to program it using the WT (wait) command. The Galil is a blank canvas, everything needs to be programmed. Mach4 should send a configuration string to the Galil on power up or reset, this ''programs'' the Galil. As I recall I have no programmed delay on my brake on my lathe X axis. I just enable the drive and release the brake on successive program lines. Pretty much happens instantly. On power down, the inverse happens.
2. On one of the diagrams for Torque control mode which is what we are shooting for, it shows a 10k resistor tied between the Motor cmd and GND, the galil circuit is 2.2K, so do I need to add an addition 8k resistor? Or none at all?
You would connect the MCn and GND from the Galil directly to the Delta analog motor command input.
3. Mach 4, using the GALIL plugin, seems to crash often when I select the plugin, it just goes unresponsive, any experience or suggestions here? Computer is 12core i7@ 4.2ghz, 30gb DDR4 @ 2666, 1TB SATA, RX580 ROG graphics, win 10 pro
Can't help you on this one. Do as Gerry suggests, Mach4 forum.
4. Wiring the limit/home switches - We only have optical home switches no limit switches, They had these wired into two 14pin relays, Im assuming in a latching configuration? Do I need them to latch? It was a mess of wires, very confusing the way they did it, only used a handful of pins on the two relays. I think I should wire them direct to the DMC board
The Galil has inputs for Home, + and - limits for each axis. The optical switches should be wired directly to the Galil. The Galil inputs will accept up to 24VDC. The the home switches can be used for travel limits. The LD (limit disable) command can be used to turn off the travel limit function when homing.
Jim Dawson
Sandy, Oregon, USA