I got my Kstep the other day and am preparing to install it. However, before I do I want to confirm that I understand the wiring correctly. I will be using external limit switches for calibrating, Estop etc and an external relay to turn the router on and off. I assume that it is good practice to use an isolated supply for the external functions so here’s my
plan:
Power the Kflop through JR1, pins 3 and 4 (does this also power the Kstep through JP 36?)
>>> It can but not if you wish to run in fully isolated mode. Removing the Isolation Jumpers breaks this connection so your method below is required to supply +5V to
KFLOP.
Power supply 2 – Ground not tied to PS1 ground or +5 V
+5 powers the Kstep through J6 Grd and +5V
+5 also goes to JP33 pins 1 since my relay for the router is 5 volt (or do I need to switch to 12 v?)
>>> That should work, but there is ~ 1V drop across the relay driver so the load will only see 4V
+12 goes the Kstep JP33 pin 8 and the ground to one side of all the input switches
Remove the “disable Opto” jumper
Remove JP34 and JP35 Isolation jumpers
+36 Volts (ground is not connected to PS1 or PS2)
+36 goes to J1 VB and the GND to GND
1 Jumper on position A of Voltage Clamp
Tag on the steppers says 3 Amps so do I put the current jumper on “H” for 3.13 Amps or do I derate to 2.5 Amps with jumpers on “M” and “L”?
>>> The 2.5A
setting should be used to avoid running the motors too hot\
I have one Nema 34 for my Y running off a Gecko so I am planning on connecting the Gecko input to JP26 pins 3 and 4 and the Kflop +5 V.
>>> No I don't think this is correct. Normally the Gecko would be connected to KFLOP JP5 pins 1 and 2 (Step Dir Generator #4). It depends which type of gecko you have.
I also know that I have to set bit 45 and do a KstepPresent=True and add 8 to the output channel numbers for X, Y and Z.
Does this look right and have I missed anything? I really want to avoid letting the smoke out of any of the components.
