The source impedance should be less than 500 Ohms to The relationship is 2.12 Amps per volt, 3.3V The voltage on the G203V terminal 11 is proportional Q: Does anyone know if it is possible to set the current limit of a G203 (and other Gecko Stepper drive) with a voltage in place of the current setĪ: Yes, it's easy. Really, I appreciate it!Ī discussion on the geckodrive yahoo group in the last day: The Anteck 70Vdc 11A unregulated output block has three terminals and from the Antect info sheet the out side two are + and - and the inside term is unlabeled. Are they asking for the ground(green) wire for my 110v supply line. That I understand well enough(hopefully)? What I don't understand is where is this "POWER GROUND" wire to be connect to the Gecko g203 term.1. AnTect states that in connecting my 110v line both the Anteck reds are connected to neutral(white) and both Anteck blacks are connected to hot(black). My Antect power supply has 2 red wires and 2 black wires. My 110v line has black(hot), white(neutral), and Green(ground). 2) +15 TO 80 VDC Connect the power supply ?+? to this terminal 1) POWER GROUND Connect the power supply ground to term.1
#GECKODRIVE G540 USB HOW TO#
I am having trouble understanding how to correctly wire my AnTeck PS-8N70Rxx power supply to my Gecko G203 driver. I have collected the motors and most of the electrical components. There are so many aspects to wiring this project and the fact that I am very new to this sort of thing does not help. I have the hardest time formulating my questions. Some RS component stock codes for the connector blocks. Although it appears that only 3 pins make one connector, they are in fact joined to an adjacent connector. The connectors are split/joined in two halves of 6 pins each. This allows you to insert a screwdriver underneath for leverage without fear of shorting something. The supplier has since been changed)ĭon't remove the connectors unless the geckos are completely dead (un-powered) with the capacitors fully discharged (g201/202 LED dead for 5 seconds - the 203 has other LEDs). (A batch of connectors was recalled a year ago because of this issue. The other drives are slightly different.ĭo not remove the connectors too often - they can wear out. When sliding the cover off, you have to lift it over the LED (light) a little bit. The right hand (lower) six terminals of the Gecko must yet be connected to something that feeds in intelligent information.(will be covered in another thread ()) So, the left hand, (or upper in the second photo), is all connected. And then each Gecko drives out 4 wires to the coils of each stepper motor. Each Gecko gets 75V DC on the red & black wires coming from the fuses. What you see in the photo above is the "Heavy" current sides of the Geckos connected. (Notice how the screens of those cables are connected to a ground/earth point at one end)
The grey cables are the beginnings of the cables out to each stepper motor plug. The G203V is the same size as the G201 - but it is NOT directly replaceable (the supply to the "Common" pin must be changed) () You can see the capacitor placed on each Gecko 201 - the G202 has the capacitor inside and is therefore a little wider, but the installation will be neater.
The power supply section has now been tidied up as per this thread. The 75V power supply and fuses occupy the top part of the board. Here are 4 Gecko's lined up on a test board to drive the 4 motors on a PRT Shopbot: