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<== Date ==> <== Thread ==>

Subject: Re: EPICS IOC asynMotorController error
From: "Pearson, Matthew R." <pearsonmr@ornl.gov>
To: Marissa Elizabeth Kranz <kranzm@uw.edu>
Cc: Matt Dentinger <mdentinger43@gmail.com>, "tech-talk@aps.anl.gov list" <tech-talk@aps.anl.gov>
Date: Wed, 22 Mar 2017 14:00:51 +0000
Hi,

I’ve not worked with DC motors with that driver (only steppers). However you could check the motor type setting. The PV name might be DMC01:A:A_MTRTYPE_CMD.

Also check the drive enable signal (DMC01:A:A_ON_CMD) which should be “On”

If there’s an issue with limits then either .HLS or .LLS will be set to 1.

Cheers,
Matt


Data Acquisition and Control Engineer
Spallation Neutron Source
Oak Ridge National Lab


> On Mar 21, 2017, at 6:55 PM, Marissa Elizabeth Kranz <kranzm@uw.edu> wrote:
> 
> Hello,
> 
> I am working on a project involving the control of 40 brushed DC motors by the Galil DMC 4080 controller. We have an IOC shell set up with encoder feedback that the motor is tracking (if we move the motor shaft a bit then it corrects itself to the encoder position), but whenever we try to send the motor to a specified position through the motor record's VAL field we receive the following error:
> 
> epics> dbpf DMC01:A.VAL 40
> DBR_DOUBLE:         40                  
> epics> move begin failure axis A
> 2017/03/21 15:46:03.777 asynMotorController:writeFloat64 error, status=3 axis=0, function=1, value=888.888889
> 
> Has anyone encountered this same error and knows what causes this output? 
> 
> Thanks so much,
> Marissa Kranz
> 


Replies:
Re: EPICS IOC asynMotorController error Ron Sluiter
References:
EPICS IOC asynMotorController error Marissa Elizabeth Kranz

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