Re: [Emc-users] Lube Pump Duty Cycle...

2012-04-09 Thread Eric Keller
On Mon, Apr 9, 2012 at 11:56 AM, John Murphy wrote: > I had previously tied my oil pump to the run signal on my VFD, so when > the machine was running, lube pump was running. > > The lube pump works with a cam raising an oiler, then letting the > spring/gravity drive the pump to push the oil out.

Re: [Emc-users] Lube Pump Duty Cycle...

2012-04-09 Thread Andy Pugh
On 9 Apr 2012, at 10:03, Dave wrote: > That is about 4 rungs of ladder in Classic ladder. Two timers, one > timer times out and starts the second one. When the second timer times > out it opens a NC contact that feeds the first timer. Or a low frequency PWMgen (running in the servo threa

Re: [Emc-users] Lube Pump Duty Cycle...

2012-04-09 Thread Dave
That is about 4 rungs of ladder in Classic ladder. Two timers, one timer times out and starts the second one. When the second timer times out it opens a NC contact that feeds the first timer.So timer 1 times out, starting timer 2 which resets timer1 and the loop continues. Put another r

Re: [Emc-users] Lube Pump Duty Cycle...

2012-04-09 Thread Chris Radek
On Mon, Apr 09, 2012 at 10:13:59AM -0600, Sebastian Kuzminsky wrote: > > I've been thinking about something similar for my converted > Bridgeport (ex-Boss8) machine. I think stepgen (in velocity mode) > could do it, and I think there's a timer in ClassicLadder that could > do it. These are gener

Re: [Emc-users] Lube Pump Duty Cycle...

2012-04-09 Thread Stuart Stevenson
The classic ladder example sim has always had a timer in it. On Apr 9, 2012 11:18 AM, "Sebastian Kuzminsky" wrote: > On Apr 9, 2012, at 09:56 , John Murphy wrote: > > > Is there a nice way to do a periodic timer or duty cycle in the hal? > > It's trivial for me to drive the pump relay with a digi

Re: [Emc-users] Lube Pump Duty Cycle...

2012-04-09 Thread Sebastian Kuzminsky
On Apr 9, 2012, at 09:56 , John Murphy wrote: > Is there a nice way to do a periodic timer or duty cycle in the hal? > It's trivial for me to drive the pump relay with a digital output, > then I can tune the pump cam motor duty cycle with 'run' to keep it > running automatically, but not quite so

[Emc-users] Lube Pump Duty Cycle...

2012-04-09 Thread John Murphy
I had previously tied my oil pump to the run signal on my VFD, so when the machine was running, lube pump was running. The lube pump works with a cam raising an oiler, then letting the spring/gravity drive the pump to push the oil out. My understanding is that it's pretty common to oil way too mu