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Messages - smurph

1191
Galil / Re: axis ports and pins settings
« on: March 18, 2014, 12:51:05 PM »
Joe,

A simple move in the Smart Term terminal will be

DPA=0 'define 0
ACA=3000  'Set accel
DCA=3000  'Set decel
PAA=10000 ' Position Absolute to 10000
BGA ' Start motion.

The step and direction signals are not use on the Galil.  A position is sent to the Galil plugin from Mach and the Galil sould do all of the step/dir stuff to the motor drivers.

Steve

1192
Joe,

The resistors are internal to the ICM.

Wilde Racing,

Either type of switch is fine.  Just if you go mechanical, then you want a good one.  Not some cheap crap that bounces.

As to the relay to run a relay, I do that a lot.  I used solid state relays to drive the coils of mechanical relays.  It may be overkill but if you are not sure how much current the coils require, then it is a safe way to handle it.

Steve

1193
Well that's good news right?? What type of power supply do I need?

Any power supply that can provide the needed current draw.  24v is max. voltage.  I would suggest a 24v supply if using mechanical switches.  Less noise issues.  Don't skimp on the switches.  Good quality switches will save you from sever headaches in the future.  :)

http://www.galilmc.com/support/appnotes/optima/note1427.pdf  Shows how to wire the opto outputs.

Steve

1194
Yes, LSCOMM is limits and homes.

You can probably use the 5v outputs on the ICM to power the optical switches.  No external supply needed if they don't draw much current.

You can ground LSCOMM and provide the pos signal from the switches.  However, all inputs and homes must operate in the same manner.  You can't have limits one way and home another. 

Steve

1195
Galil / Re: Galil And Lathe
« on: March 10, 2014, 02:35:56 PM »
It works well except there is no support for threading at the moment.  Kenny is working on this right now.  But there are no guarantees that threading will ever be working at this point.  It looks promising.  But if you need threading, you might want to wait or choose another controller.

Steve

1196
The ICM can use the logic level voltages that are present on the ICM (+5 and +12).  There is LSCOM and INCOM which are the common rails of the limit switch inputs and the general purpose inputs.  I usually tie +24 volts from an external supply to these common terminals.  I do NOT recommend using the logic level voltages on mechanical switched circuits.  So 24v is pretty much mandatory.  This sets the circuit up for the switches to ground the circuit.  Each of the wires tied to an input or limit is then tied to one side of the switch and the other end of the switch is tied to ground.  Either normally open or normally closed switches can be used.  However, for safety reasons, I would recommend that the limit switches be the normally closed type.

The output wiring depends on if the ICM is opto-isolated or not.  If it is, it will have a -OPTO label on it.  You would then supply OUTPWR and OUTGND.  Read the Galil documentations for examples of wiring the output circuits.  i usually use the outputs to drive solid state relays regardless of if the ICM is -OPTO or not.  Then you can use the logic level voltages from the ICM to control the output SSRs and let the SSRs switch what ever voltages you need.

The general inputs and outputs (8 each on your 1842 board) are not used for anything special on the Galil.  They are merely there for machine I/O duty.  There is one exception, however, and that is the case of probing.  Inputs 1-4 also serve as the high speed position latch triggers.  So if you want to use a probe, do not use these inputs for other purposes.  The triggers are PER Galil axis.  Input 1 is for axis A, input 2 is for axis B, etc...  So if you are using Galil axes A, B, and C to drive Mach axes X, Y, and Z, then you will want to reserve inputs 1, 2, and 3 for your probe inputs.  Each input should be wired up to the probe so that a probe strike activates all of the inputs at the sane time. 

Steve

1197
Galil / Re: Install Error
« on: March 04, 2014, 03:27:13 AM »
Yeah, that one got me too years ago.  I found myself trying to double click the line or the check box.  I'm glad I'm not the only one that suffered this!  :)

Steve

1198
Galil / Re: Galil ICM 2900 7407 enable IC
« on: March 04, 2014, 03:23:46 AM »
For future reference, the part number are SN7406N and SN7407N.  Both available from Digikey.

For the 7407: http://www.digikey.com/product-detail/en/SN7407N/296-1436-5-ND/277082
For the 7406: http://www.digikey.com/product-detail/en/SN7406N/296-1435-5-ND/277081

Steve

1199
Galil / Re: icm 2900 screw connectors
« on: March 04, 2014, 03:05:21 AM »
They are a pretty common connector.  I purchased them from Digikey or Mouser Electronics.  There is a top access part number and a bottom access part number.  But I ordered just top or bottom (I can't remember which) and they will interchange but just not wire up as nicely.  If I can find my receipt from waaaaaay waaaaay back when, I'll post up the part number.

Ahh...  Here it is.  http://www.digikey.com/product-detail/en/ELFF04230/APC1176-ND/1787967  They only have the top access ones in stock. 

Steve

1200
Yes... stepper or servo?

The pins pretty much are how you map the Galil inputs and outputs.  The pin map is in the Galil Plugin PDF.  Basically you find the input or output you want and look up in the PDF and you assign that pin number yo the Mach input or output signal you want to map it to in "Ports and Pins". 

The encoders are internally mapped, so don't do anything on the "Encoders" tab of the Mach config.  Just make sure the encoders are wired up to the ICM.  The AMPENA output on the ICM is also internally mapped.  It is actually toggled high with the Galil command "SH" and low with "MO"  The plugin issues these commands to the Galil appropriately. 

Steve