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Messages - peter81

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61
General Mach Discussion / Re: Grease pump
« on: March 03, 2011, 02:37:47 PM »
So the switch must be ON for more than 0.1s and OFF for more than 0.1s to make the count?

62
General Mach Discussion / Re: Grease pump
« on: March 03, 2011, 02:01:39 PM »
I found another way to count pulses. I've installed inductive sensor to count holes on the linear rail. The holes are 60mm appart.  When the sensor is above the hole, it switches off.  I've calculated that input will be off every 0.17s. Now the problem is still the same. Brain is still missing counts with top speed of 20m/min. Can someone tell me if there is something wrong with brain?

63
General Mach Discussion / Re: Grease pump
« on: February 28, 2011, 02:11:13 PM »
Persistent DRO's was checked all the time. I have problem with my brain. It can't count as fast as machine moves. Can somebody look at the brain and see what do I need to change to make it work. I'm not realy good at writing brains.

Peter

64
General Mach Discussion / Re: Grease pump
« on: February 27, 2011, 02:41:30 PM »
After few hours I've tried again and now the DRO is stored after mach is closed and open. Strange, and I did nothing to the settings  ::)

65
General Mach Discussion / Re: Grease pump
« on: February 27, 2011, 09:10:08 AM »
I have made a brain that counts inputs and macropump to fire the output at specific set number of inputs. I set a DRO to see those input numbers. The problem is that these numbers in DRO are not saved while mach is closed and open again. When I open mach the dro reads zero counts. How to make those numbers to save in dro?

66
General Mach Discussion / Re: Grease pump
« on: February 26, 2011, 05:00:28 PM »
I have one question. Is macropump fast enough to do counting? I've done some calculations. My machine has a top speed of 25 meters per minute and there is 150 teeth per 1 meter of rack. So at top speed the input will be triggered every 0,016s.

67
General Mach Discussion / Re: Grease pump
« on: February 25, 2011, 07:19:58 AM »
Hi, my sensor is on/off switch 24V. It will be connected to DSPMC/IP controller.

Peter

68
General Mach Discussion / Re: Grease pump
« on: February 24, 2011, 03:18:35 PM »
Ok I decided to mount inductive proximity switch on the gantry pointed at the rack teeth. Can someone point me at the rigt direction on how to write a brain to count the clicks and then activate output. Thanks.

Peter

69
General Mach Discussion / Re: Grease pump
« on: February 22, 2011, 03:44:08 PM »
Thanks for answers. I will go through all the options and see which one will suit my needs. Thanks.

Peter

70
General Mach Discussion / Re: Grease pump
« on: February 21, 2011, 05:39:02 PM »
Hi, I'm afraid that would not be possible because the limits of the travel are at the very end of the rack, so there is no room for one more pinion.

Peter

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