I have a DMC4080, the A and B axis are controlling Kollmorgen AKD servo drives which require a 24vdc active high enable signal. The problem is that I cannot enable one drive at a time, in fact if I give the SH command to any axis (even unconnected ones on the same ICM-42000), both of the AKD drives see the input go high. None of the signals go back to a logic low until all axis get a MO command. The ICM-42000 is configured for isolated power high amp enable sourcing per pg.200 of the manual.
My suspicion is that the RP6 resistor is too large.
Any suggestions or advice will be much appreciated.
Greg
KushalP on 10/19/2015 - 17:22
Hi Greg,
Did you order the controller with the 24V - High Amp Enable option?
If you issue a 'SH' command without specifying any axes, all axes will be put in a Servo Here state. Similarly, issuing an 'MO' command without specifying an axis will place all axes on the controller in a 'MO' Motor Off state.
Which axes do you are you issuing SH on? Are you explicitly defining the axis, i.e. 'SHA'?
- Kushal
opnboats on 10/27/2015 - 15:13
I was issuing the SH on one axis at a time and all of the axis were enabling. It is kind of a moot point now, I added 2.4k pull down resistors at the enable inputs of each drive and that solved the problem. Cheers.