Motors move with P7000 but not with MAX

[mishka]

Hi,

I am a complete motion novice, I am setting up a motion control system consisting of:

Danaher motors and P70360 stepper drives, NI UMI-7772 motion interface, and NI PCI-7332 motion controller.

I configured the drives with the P7000 Tools program, and can move the motors with that program, but can't move them with either MAX or NI Motion Assistant. When I hit start in MAX the position counter changes, the "Axis is currently moving" light does not come on, there are no error messages, and the motors don't move.

Any advice is much appreciated.

[iZACHdx]

Hello,

Have you gone through the Getting Started Guide for this drive and set up everything according to the recommendations listed? The locations of the pre-set configuration files are given as well as instructions on how to import these into Measurement & Automation Explorer. I would make sure that everything is setup and wired according to these specifications in order to continue troubleshooting.

-Zach

[mishka]

Hi Zach,

Yes, I've gone through Getting Started. I left all of the dip switches off and used P7000 Tools to configure the drives. I uploaded "7330 settings for P7000 drives" to MAX.  In P7000 Tools, after selecting my motor (T23NRLC), it listed Step Resolution at 25000 steps/rev. I tried changing it to 5000 as it is listed in MAX and vice versa but motors still won't move.

Lights on P70360 are solid green, lights on UMI-7772 are all amber. If I disable an axis in MAX then the red disable light comes on on the UMI, so there's some communication there. I re-checked the wiring between UMI and P70360s, it looks fine.

Also I mistakenly said that when I hit START in MAX the "Axis is currently moving" light does not some on. That's not true, it comes on but the motor doesn't move. I have no trouble moving them with P7000 though.

One other thing - my motors are really hot when idle. According to Troubleshooting in Getting Started, this could mean current reduction is disabled. Can I check this in P7000 or MAX if I'm not using dip switches?

Thanks,

Nami

[iZACHdx]

Hello,

The current reduction settings for the drive should be getting handled when you configure it through the P7000 tools software. Have you tried changing the polarity of the inhibit line? When you are using 1D interactive, do any of the other lights come on when you are trying to perform a move? Do the lights change on the UMI or drive at any point of a move as well?

-Zach

[mishka]

I'm sorry but I don't know what "changing the polarity of the inhibit line" means, can you explain?

No lights change on the UMI or drives during a 1-D move.

Nami

[iZACHdx]

Hello,

The inhibit line is one of the settings in MAX. These settings are located under the Motion IO settings for the axis you are working with.

-Zach

[mishka]

Changing inhibit line polarity did not do anything, still no movement.

[iZACHdx]

Hello,

If you hit the kill button and then the halt button on your 1D interactive, does the green light on the P70360 change at all or does it remain green the whole time?

-Zach

[mishka]

Hi Zach,

If I hit Kill and then Halt the light stays green on the P70360.

The red disable light comes on on the UMI after hitting Kill.

Could you also check my wiring between the UMI and P70360? I copied it from an identical set-up down the hall but there seems to be a connection problem between the 2.

pin 4 (step cw) to pin 2 (step-)

pin 12 (dir ccw) to pin 4 (dir-)

pin 6 (enable) to pin 6 (enable-)

pin 7 (fault+) to pin 8(fault-)

pin 14(fault-) to pin 9 (gnd)

pin 15 (iso common) to pin 9 (gnd)

pin 8 (iso power output) to pins 1/3/5/7 (step+/dir+/enable+/fault+)

Thanks!

[iZACHdx]

Hello,

This sounds like a connection problem between the two, but the best way for you to isolate it may be to use the other setup that you know is working in order to test things. When you click the kill or halt button, the green light on your drive should flash because it is getting a signal from the inhibit line.

-Zach