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Author Topic: Galil DMC-4040 Anilam analog amps and DC servos  (Read 12571 times)

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Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #10 on: December 10, 2011, 08:57:16 PM »
I hope the other end is attached to just any nonspecific signal (ground, 3.3, 5, 12, or 24vdc).  It can't hardly be from or to the amp though.  The old Anilam system turned on and moved the servos.  All the wires that went to or from the amps and servos have not been changed, except #2 and #11 of Amp's J1 connection now goes to the Galil.
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #11 on: December 10, 2011, 10:32:39 PM »
AEN is dedicated outputs from Galil, one for each axis, these are intended to be drive inhibits or enables.
These are activated if a MO command or a watchdog timer activates due to Galil hardware error.
Nosmo.
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #12 on: December 11, 2011, 11:50:17 AM »
NosoKing,


Well, I'm at a loss, I just don't understand.  These amps didn't have anything else going to them wirewise before for an enable and the inhibit (blue wire to ground) is already floating.  I may need to buy different amps.
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #13 on: December 11, 2011, 12:11:20 PM »
Isn't JI term 6 exactly that? It is very unusual for amps of these vintage not to have a enable input.
Depending on the nature of T6 input, if using the signal from the Galil to disable the drives, it may need some conditioning, i.e. Opto or relay etc.
N.
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #14 on: December 12, 2011, 01:01:18 PM »
When power (115VAC) is applied to the Power Supply and the inhibit is removed/floating (J1 term 6) to the Amp boards should the motors turn on with just that?  Not move mind you, just turn on and lock the axis's or is there something else that needs to get sent from the Galil/Mach3?
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #15 on: December 12, 2011, 01:24:05 PM »
Generally when drives that have tach feedback are powered and enabled they should 'cage' the motor and resist turning,  regardless of the state that Galil is in, the only time they normally drift is if using modern drives in the torque mode with the tach not used and  a MO (motors off) is issued to Galil and the AEN enable is not used to shut the drives off.
Nosmo.
 
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #16 on: December 12, 2011, 05:55:50 PM »
NosmoKing,

My servos aren't "caging". 
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #17 on: December 12, 2011, 07:39:20 PM »
Time to do a battery input test to the amps, see attachment. I have used my meter in low ohms or diode check in a pinch.

Darek
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #18 on: December 12, 2011, 07:44:58 PM »
I too was just about to mention the battery box, feed it into the command (analogue input),  this should confirm whether the drives are enabled or not?
N.
Re: Galil DMC-4040 Anilam analog amps and DC servos
« Reply #19 on: December 13, 2011, 12:52:25 PM »
Just a 9v battery and see if it moves right?  Would a D-cell 1.5v work also.  Do I need the variable resistor and if so what size?