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Drives Guy

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RE: PowerFlex 525 Drive

Posted By Drives Guy Jul 04, 2022 07:19:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
If I could suggest that they look at Parameter b027 in each of those drives. The last time I saw LCD burn like this, it was in a bank of PF525s in an upper mezzanine, that had no ventilation, and all the LCD displays were (along with the drives) slowly cooking in the enclosure they were in. I advised ...

RE: PowerFlex 40 (or 523) Keypad Control with Start at Powerup

Posted By Drives Guy May 02, 2022 10:49:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Yeah, I'm not sure this is going to be solvable, or an easy solution anyway. Thanks for you input. ------------------------------ Drives Guy ------------------------------

RE: PowerFlex 40 (or 523) Keypad Control with Start at Powerup

Posted By Drives Guy May 02, 2022 10:22:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Unfortunately, you also need an established run command into the drive for this to work, which goes against being able to start the drive from the keypad. And, from what I have seen, you simply cannot assign a DI in either drive for Run. ------------------------------ Drives Guy ------------- ...

PowerFlex 40 (or 523) Keypad Control with Start at Powerup

Posted By Drives Guy May 02, 2022 07:38:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Hi All, I have a contractor who's customer builds machines that used TB Woods drives. We are converting them over to PowerFlex, but one feature that they used in the TB Woods was a setting that allowed them to have both keypad control with the ability to start at powerup. I've looked through all the ...

RE: Help needed to set up Powerflex70

Posted By Drives Guy Aug 16, 2016 06:50:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Hi Raul, One basic rule of thumb that I use, when programming drives, if there are issues with the current setup, reset the parameters to default and start over. Without doing that, the drive will retain all the parameters that you have previously set up and haven't changed, and this can cause ...

RE: Powerflex 753 Startup Issue

Posted By Drives Guy Jun 27, 2016 10:41:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Try tuning the drive too, that should help improve performance, also, what are your ramp times, perhaps they're set too fast to be able to move that heavy load in time? ##HL33

RE: Single VFD PF755 multiple motors, get overcurrent F12 fault

Posted By Drives Guy Oct 28, 2015 08:16:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Have a look at these articles, I think you need to look closely at these articles that talk specifically about using SVC in multi-motor applications. https://rockwellautomation.custhelp.com/app/answers/detail/a_id/606313 https://rockwellautomation.custhelp.com/app/answers/detail/a_id/66824 ...

RE: Single VFD PF755 multiple motors, get overcurrent F12 fault

Posted By Drives Guy Oct 28, 2015 07:42:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Personally, I am not a fan of multiple motors on one drive, I find it creates more headaches than save money in installing multiple drives. And, given the expense of the large drive that has to be purchased in order to run a number of smaller motors, it isn't a huge cost savings either. ##HL33

RE: Single VFD PF755 multiple motors, get overcurrent F12 fault

Posted By Drives Guy Oct 28, 2015 07:41:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
This is take from the article you referenced before, if you follow all those instructions and still get the faults then I would check your cable connections and motor windings for shorts. 502708 | 08/29/2012 | Access Level: Everyone s Question What are some ...

RE: Single VFD PF755 multiple motors, get overcurrent F12 fault

Posted By Drives Guy Oct 28, 2015 07:26:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Are you running the drive in some form of Vector control? When using a drive with multiple motors, you are supposed to set the drive to Volts/Hz, this is one reason why you don't Autotune the drive, there is no Autotune needed for V/Hz mode. The drive does not know it is running two motors and therefore ...

RE: Would like to run 1-Powerflex755 drive from two HIM modules, two locations, is this possible

Posted By Drives Guy Aug 13, 2015 12:33:00 PM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
That's been part of my argument for a while now. They launched the WIM 10 yrs ago when no one knew what bluetooth was. Now my kids toys come with it. I've tested them with Rockwell's new drive software Connected Components Workbench, and they work fine. Maybe if more people chime up about wanting ...

RE: Would like to run 1-Powerflex755 drive from two HIM modules, two locations, is this possible

Posted By Drives Guy Aug 13, 2015 12:28:00 PM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Please note that Rockwell has discontinued the WIMs. Which is too bad, they were bluetooth and good for up to 30' of wireless coverage. ##HL33

RE: Powerflex 40 power leak

Posted By Drives Guy Jul 06, 2015 05:47:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
The PowerFlex 40 does not have an encoder feedback capability. Also, the highest level of motor control it has is Sensorless vector, which does not hold the motor all that well at zero speed, you will experience some "jiggle" in the motor. The PowerFlex 70 and up, in the Architecture Class Drive, has ...

RE: PF40M on a crane

Posted By Drives Guy Jun 23, 2015 11:33:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
If you have a look at this technote from Rockwell's Knowledgebase and others under the search Torque Prove, it will give you better information; 21738 - Hoist Application Setup / Torque Proving Access Level: Everyone Date Created: 10/29/2002 12:00 AM Last Updated: 11/25/2014 06:22 PM

RE: PF40M on a crane

Posted By Drives Guy Jun 22, 2015 11:41:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Hi there, I have not heard of a PF40M before, I know of the 4M and the 40. Having said that, I would never use a PF 4-Class drive for any hoisting applications, they are just not designed to perform this task. You are correct that your customer should look to upgrade to either a 700 or 755, and ...

RE: Powerflex 400

Posted By Drives Guy Apr 02, 2015 11:23:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Now, you have my curiosity really high. Have you scoped out the outputs of the motor. Since you have done a number of these, you know what you're doing, so I'm starting to wonder if there is an anomaly in the drive. If you are able to scope the outputs of the drive and see some spikes, maybe scope out ...

RE: Powerflex 400

Posted By Drives Guy Apr 02, 2015 11:07:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
A load reactor will help with any spikes coming from the drive. Have you been running this drive in this application for long or is this a new installation? Also, are all the drives PF400s? While the PF400 is a great drive for Fans & Pumps, it doesn't really have any torque control or capability. And ...

RE: Powerflex 400

Posted By Drives Guy Apr 02, 2015 10:52:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Have you been able to take to motor apart to see what it looks like inside? I'm curious if you can see any of the corona effect in the windings.By the way, just because a motor is titled as premium efficient it doesn't mean that it is VFD rated. A truly VFD rated motor (and Baldor does make them) will ...

RE: Powerflex 400

Posted By Drives Guy Apr 02, 2015 10:40:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Are all the motors you mentioned above at the same cable distance as the problem one? I still suggest you have a look at the guide in the link I attached previously, it is great for helping trouble shoot these types of problems. ##HL33

RE: Powerflex 400

Posted By Drives Guy Apr 02, 2015 10:32:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
I have a couple questions for you, what is the voltage of the drive and motor? What is the application you are performing with the drive and motor? A service factor rating in a motor is a rating similar to that of the OL rating on a drive, and the PF400 has an OL rating of 110% for one minute. Is there ...