No joy so far. SOLVED - Lots of joy now!

[outsider787]

Wired up the electronics last night (3 x KL-6050, 3 x KL23H2100-50-4B one
KL-350-48 (power supply) along with a C35 BOB).
Set up Mach3 (after watching the videos on the Mach3 site) and reading lots of posts, but was not able to get any of the steppers to move.

I did everything I could think of to get the setup working. Double checked all the wiring several times, double checked the Mach3 settings several times... No joy.


My next step is to manually send pulses to the DB25 connector on the C35 BOB to see if the problem is on the computer side or the BOB/Driver/stepper side of the system.

Can I manually pulse a voltage to pin 2 of the C35 DB25 connector (for example) to get the x stepper to increment? (pin 4 and pin 6 for the y and Z steppers?) Do I pulse with +5v or +3.3v?

adrian

[LouF]

Check your Parallel port cable that was what was my problem they sent me a defective one...

Lou

[doorknob]

A good way to start troubleshooting is to use a multimeter to monitor the voltage of the direction pin of one of your axes and ground while you use Mach3 to alternately jog the axis in one direction and then the other direction.

Measure the voltage at the KL-6050 DIR pin, but also measure it at the corresponding DB-25 connector pin. The voltage should be at a logic "high" (typically close to +5 volts) in one direction and at a logic "low" (close to 0) in the other direction.

There may actually be two different ways to hook up the output of the BOB to the KL-6050 (for example, depending on whether you have chosen to hook up the BOB's DIR output to the DIR+ input or the DIR- input of the KL-6050). Which way do you have it hooked up?

[outsider787]

A good way to start troubleshooting is to use a multimeter to monitor the voltage of the direction pin of one of your axes and ground while you use Mach3 to alternately jog the axis in one direction and then the other direction.

Measure the voltage at the KL-6050 DIR pin, but also measure it at the corresponding DB-25 connector pin. The voltage should be at a logic "high" (typically close to +5 volts) in one direction and at a logic "low" (close to 0) in the other direction.

There may actually be two different ways to hook up the output of the BOB to the KL-6050 (for example, depending on whether you have chosen to hook up the BOB's DIR output to the DIR+ input or the DIR- input of the KL-6050). Which way do you have it hooked up?

Didn't know there was another way to hook up the BOB to the KL-6050.
I currently have all the +ve and all the -ve lines hooked up to their corresponding + and - locations.
So the BOB's DIR+ is hooked up to the KL-6050's DIR+, and the DIR- to the DIR-.

[MrWild]

In the gecko forum, Maris has given a pulse generator design. Also can be found on the Gecko drive web site.

[doorknob]

Didn't know there was another way to hook up the BOB to the KL-6050.
I currently have all the +ve and all the -ve lines hooked up to their corresponding + and - locations.
So the BOB's DIR+ is hooked up to the KL-6050's DIR+, and the DIR- to the DIR-.

I will try to provide more info this evening - unfortunately I'm tied up right now.

[doorknob]

Some questions about the C35 setup:

Do you have the SCHP jumper on or off? If on, have you set up Mach3 for the charge pump?

Do you have the EN enable pin connected to +5 volts?

Are you getting +5 volts from a USB port or from an external power supply? Is the power LED lighted?

Are you certain that you have chosen the proper wires coming from the RJ-45 driver output connectors and connected them to the KL-6050 inputs?

In Figure 2 of the KL-6050 manual at http://www.kelinginc.net/kl-6050.pdf they show one style of hookup where:

the STEP (PUL) signal from Mach3 goes to the PUL- input of the KL-6050,
and +5 volts goes to the PUL+ input,

the DIR signal from Mach3 goes to the DIR- input of the KL-6050,
and +5 volts goes to the DIR+ input of the KL-6050,

more in a moment - have to answer the phone...

[Fastest1]

Dont worry it isnt as obvious as it appears using the C35 and digital drivers. Are you using the C34KLDR1's to terminate your cat 5 from the C35? Is this your first machine to use via cnc? Not trying to offend, there is a bit here to learn if it is. Actually even if it is your second or third there is plenty to learn LOL

[doorknob]

Continuing from above:

and +5 volts goes to the ENA+ terminal of the KL-6050
while the ENA- terminal of the KL-6050 can either go to GND of the BOB or to a negative-going enable signal from the BOB.

With that style of hookup, the KL-6050 is expecting the output of the BOB to "sink" current to ground.

The C35 should be able to handle that style of hookup to the KL-6050, however the outputs from the C35 are also able to "source" current to a stepper driver, which means that you could hook it up in an alternate fashion, such as the following:

Alternate Hookup:


the STEP (PUL) signal from Mach3 goes to the PUL+ input of the KL-6050,
and GND goes to the PUL- input,

the DIR signal from Mach3 goes to the DIR+ input of the KL-6050,
and GND goes to the DIR- input of the KL-6050,

The EN (+5) signal from the C35 or from Mach goes to the ENA+ input of the KL-6050,
and GND goes to the ENA- input of the KL-6050.

I hope that was clear.

[outsider787]

Thank you for your input so far guys!

@Fastest, this is my first cnc setup, and first time setting this kind of hardware.
I am using the C34KL to terminate the Cat5 connections on the KL-6050, so I never thought I needed to worry about the wiring method.

@doorknob, I do have +5v power going to the C35 BOB, and to the ENA terminal.
I do have the power LED on, and the SCHP jumper is OFF.

Did some more investigating tonight.
I can detect the change in voltage on the DIR line of each axis at the point of entry into the KL-6050.

So the computer and the BOB are working appropriately up to that point. Can't check PUL line since a volt meter won't see the pulses from the PC.
However the steppers do not turn. (I've checked, and there is 48V going to the KL-6050)

I have also pulsed +5v (taken from the +5v on the BOB) to the PUL+ line of the KL-6050 and the stepper appears to turn a fractional amount, which seems promising as I see some movement.

I just don't understand why the PC is not driving the steppers.....

[HorridHenry]

Have you set the parameters up properly in Mach3? ie motor tuning

[hoss2006]

Disconnect the enable pins on the 6050's. If you look at kelings wiring diagram
the enable pins on the driver are not used.
Folks have just clipped off the 2 pins on the c34kl or bent them out of the way.
Hoss