[davida1234]

Since the signal at the breakout board is not changing, it's either:

1) The Motor doesn't actually fault.
Well, the motor is stopped by the bumper. The green light on the servo is yellow, blinking. The servo will not responding to jog commands.

2) The HLFB is not working, or the software is set incorrectly.
There is really not much to set with the software. Pin, port and function. Or am I not correct?

3) There's a short in your circuit boards.
If everything else work with the circuit boards, nothing pops or smells and all other inputs work, I would say probably not.


Using In Range to check following error should guarantee that you get a signal, as I'm not sure what will actually trigger the "Servo On" signal.

I will try that if Teknic doesn't find anything. They asked several times if my servos were on "Servo On".

[davida1234]

Correct he's not but in the end it will be interesting if a plc or relay board is whats needed for it to work properly.

My thinking is that if the HLFB circuit is able to trigger a relay, it should be able to trigger an input.

Relay to me sounds like a bandaid. On Acorn site, they used them for other purposes like homing, I believe.

[Ntl]

I will try that if Teknic doesn't find anything. They asked several times if my servos were on "Servo On".

David have you hit up cnc4pc yet? They might be able to give you some info.

[Ntl]

My thinking is that if the HLFB circuit is able to trigger a relay, it should be able to trigger an input.

Relay to me sounds like a bandaid. On Acorn site, they used them for other purposes like homing, I believe.

No they use them to handle the alarm signal as well, you had me curious so I read a bunch of post's about. BTW they aren't wired in series to the relay, so I don't think they would trigger a single relay if wired in series. Gary C even did a video talking about why he uses a relay board and what it does.

I've been kicking around building a new machine and using servo's so I'm very interested in the issue. I was also looking at DMM AC servo's but it seems guys have had issues with them as well.

[davida1234]

David have you hit up cnc4pc yet? They might be able to give you some info.

No, I have not yet but that gave me another idea.

Why not try another input on the BoB?

Maybe the one I know is definitely working......the homing input.

[Ntl]

Try it out, I would still try wiring just one hlfb up and see if you get a signal. If you do, then wire two and keep going until you don't get a signal anymore. It would be a way to see if it is a resistance issue with the clearpaths.

[ger21]

The easiest way to check the circuit is to disconnect the two wires from the breakout board, and wire them to a power supply, with a place to check if the voltage drops out. It should act like a switch.

[Ntl]

I'm also wondering if it is a resistance issue, could it be from the gauge wire that's being used or the connections? I'm by no means a electrical expert just tossing some ideas out there.

[davida1234]

The easiest way to check the circuit is to disconnect the two wires from the breakout board, and wire them to a power supply, with a place to check if the voltage drops out. It should act like a switch.

Interesting. Disconnect which two wires and wire which to a power supply?

Could you elaborate some more, please?

[davida1234]

I'm also wondering if it is a resistance issue, could it be from the gauge wire that's being used or the connections? I'm by no means a electrical expert just tossing some ideas out there.

RJ45 connectors use 24 or 26 ga wire. HLFB, from what I understand, is 1 mA.

[davida1234]

.

Dust Collection Installation:

While I wait for Teknic to come up with some suggestions, I am
going to connect the DC system on the machine to the Dust Collector.

Main pieces:
Two truss head bolts, two eye nuts, one collar and washers and nuts:
Attachment 419744

And one 3/8 structural fiber glass rod, 5 ft long:
Attachment 419746

[davida1234]

Install bolts on the rear leg of the frame:
Attachment 419748

One up high, one at the bottom:
Attachment 419750

Install the eye nuts:
Attachment 419752

Slide the FG rod through the eye nuts,
Tighten the collar on the FG rod with
about one inch of rod at the bottom:
Attachment 419754

Fiber glass pole installed:

[wmgeorge]

Well if they are just solid state NPN or PNP transistors I doubt if they would be wired in series. If they are in parallel and either went high sourcing a voltage or low sinking a 5 vdc signal (resistor in series) that would work. I looks as if not many users are taking advantage of that safety circuit.

[davida1234]

I looks as if not many users are taking advantage of that safety circuit.

wmgeorge, please see the comment from Teknic below. And yes, they are wired in series:

"3rd party controller setup:

We have had countless customers that have successfully used 3rd party PLC's and CNC controllers with the HLFB servo on function."

[davida1234]

Screw on a 3'-6" long 4" DC hose on the collector on the machine:


On a 4" elbow, clamp another 4" DC hose long enough to reach the DC vacuum:
Attachment 419764

Attachment 419766

Drill a 3/8 hole on the inside of the elbow:

[Ntl]

RJ45 connectors use 24 or 26 ga wire. HLFB, from what I understand, is 1 mA.

I was just reading the clearpath manual and 1mA is the minimum 30mA is the maximum. It also talks about the potential for needing current limiting resistor's to protect the internal circuit. I'm not super well versed in all of this stuff. But it seems like it could be the problem. It also sounds like you really need more information about the bob and how much current it needs to process the signal. Can you check the hlfb to see how many mA you are getting at the board and then confirm with the board manufacturer that the number jives with what the board needs to change the state of the input?

[davida1234]

Clamp on the hose from the machine onto the elbow:
Attachment 419772

Push the fiber glass rod through the hole on the elbow.
DC system ready to be connected to the vacuum:

[Ntl]

Screw on a 3'-6" long 4" DC hose on the collector on the machine:


On a 4" elbow, clamp another 4" DC hose long enough to reach the DC vacuum:
Attachment 419764

Attachment 419766

Drill a 3/8 hole on the inside of the elbow:

I like what you're doing, much more elegant than the unitrack and hanging from the ceiling hose. I was originally thinking of doing something similar, but I got burnt out on working on the machine. Can't wait to see that thing cutting.

Dan

[Ntl]

wmgeorge, please see the comment from Teknic below. And yes, they are wired in series:

"3rd party controller setup:

We have had countless customers that have successfully used 3rd party PLC's and CNC controllers with the HLFB servo on function."

You should ask for a example of one of them to see how they got it to work.

[davida1234]

Clamp on the hose from the machine onto the elbow:


Push the fiber glass rod through the hole on the elbow.
DC system ready to be connected to the vacuum: