Messages

1

Parallel Port breakout boards, motherboards, and dedicated accessories / Re: PMDX 126 REV C, k1 k2 relays.

« on: April 18, 2017, 03:32:11 PM »

so here is a schematic of what I was thinking...

2

Parallel Port breakout boards, motherboards, and dedicated accessories / PMDX 126 REV C, k1 k2 relays.

« on: April 18, 2017, 02:07:06 PM »

Hi again, I've been reading how people are using the k1 and k2 relay, and want to confirm my thoughts.  I can run the AC mains active line onto the NO of K1 or K2( and Daisy to MOV on K2), and then run from k1 or k2 COM to the active AC input on my dust extractor / spindle pump etc... and need to use an enable command to send active high signal on pin 1 port 1, to turn 'on' the relay that's No.

Or, if I run live AC in NC+mov( is this needed ) , out Com, then I use a reset active high signal to pin1, to turn off the relay, if reset is active ? And I manually turn them on the first time ?, or after I reset the software reset ?

3

Parallel Port breakout boards, motherboards, and dedicated accessories / Re: PMDX 126 REV C, setup with AM882 Fault Detection

« on: April 14, 2017, 01:11:17 AM »

Thanks Steve, that makes sense to me know.

Regarding the Common +5V_gnd or Common PC_gnd, I didn't really find any literature talking about the pro's or cons of each - just that either can be setup for the AM882. Is there one I should be using over the other for my setup? and do I need to change any software config - based on which way I setup the driver connectors like active edge rising or falling, or has O/C or PNP got nothing to do with the pulse edge timing or any other setting?

Also - do the connectors on J12 ( pin 11 to 15 ) also have pullup resistors, so that for example, I run the X axis limit switch( NC ) from pin 9 - through the NCswitch and back to pin 10 on J12 to complete the circuit, and just setup in the software pin 15 port 1 = X limit active low?

thanks for the advice,
Nick

4

Parallel Port breakout boards, motherboards, and dedicated accessories / Re: PMDX 126 REV C, setup with AM882 Fault Detection

« on: April 13, 2017, 01:55:09 PM »

Thanks Steve - this is contrary to the AM882 schematic - in all of those pictures, the ALM+ is also connected to the  PUL+ signal before the fault pin.

Are you saying effectively the Fault pin provides the signal, so no connection to the PUL+ signal is required ? If we have 5 cards wired in parallel, how does the PDMX know that one of them is fault low, when the other 4 aren't? Ie - won't the signal go to ground, as much as bypass that driver and still go to board ground? Where as series the signal is cut?

Sorry for all the questions.

nick

5

Parallel Port breakout boards, motherboards, and dedicated accessories / PMDX 126 REV C, setup with AM882 Fault Detection

« on: April 13, 2017, 11:07:42 AM »

Hi guys,
I am in the process of upgrading my mill to both the PMDX 126RevC, and changing to digital AM882 leadshine drivers. I am wanting to integrate the 882 ability for Alarm, to halt the machine and software.
From what I understand in the 126 manual, can I run from the FAULT, to ALM+ driver1, out ALM-, into ALM+ driver 2 , out ALM- etc, out the last driver ALM- into J13 GND pin, and set all the Drivers to fault active low condition ( so they are in series, with active low - to match the 126 fault active low - fault pin.

Question 1 - where is the fault signal coming from ( does the Fault PIN - have it's own + signal ) that is grounded by ALM+/_ switch if a drive detects fault?

or

I noticed in the AM882 schematic which only shows a single drive, in Common Anode they have linked the Pul+ to VCC, Dir +, ENA + and ALM + all in parallel linked together.    Or in the other schematic they have Pul + with ALM +, and all the PUL/DIR/ALM- linked to go to GND together. I get the impression if I want to hook up 5 drives to signal a fault condition, this is not going to work.

So is it possible to just hook up the ALM + / _ in series, coming from the fault pin, and into a GND pin, or do I need to attatch the first drive Pul + signal before the ALM+ termninal?

Should I ground the PUL- and DIR- on the J13 GND as in the AM882 guide along with the ALRM-, or run these seperately to their respective J3/J4 plug GND ( Ie keep the ALM -going to  GND in the J13 area, and the Pul/Dir GND in their respective plug areas ( not a common GND? ) If the GND is common, is there a problem with me daisy chaining all the PUL-/DIR- together between 5 different drives, running to the same J13 GND? )

Or should I be using ther ERR+ and ERR- on J13 somehow?

So confused!

Still!

Nick