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Resetting a SM series AC TECH DRIVE after power failures.

If you have an SM series drive by AC TECH and have not had a plant power failure, it could be just a matter of time due to high electrical grid burdons or fortunate that severe storms have not struck your area.  But recently we had an existing customer experience this particular issue and they were now in a down situation and needed to get back up and running fast.  Unforturnately, a step by step procedure is not published, but the informantion is in the manual, just not in the best organized fashion.  Here is a quick reference guide for when this occures.

Per the Technicians at AC TECH:

“A manual reset is down by setting parameter P48(program) to a value “04” (reset 60hz).

To access the parameters hit mode, if prompted for a password the default password is “225”, then hit mode again and it will display P01 scroll up to P48, hit mode, scroll to a value of “04” and hit mode again to accept the new setting, the drive will then be successfully reset.

Keep in mind that any parameters that have been changed from their default settings will be reset and will need to be re-programmed so it may be helpful to record parameter settings prior to preforming a drive reset. Also, if it is an OEM unit set P48 to “03” (reset to OEM settings)".

 

We at Marshall Wolf Automation are happy to provide this valuable information and would like to thank the factory technicians at AC TECH LENZE for their partnership and well organized operation and are proud to provide their products to the market.  Marshall Wolf Automation is a leader in the supply of AC FREQUENCY DRIVES and if you have an application, please visit us on the web at www.wolfautomation.com or contact us at sales@wolfautomation.com or if desiring to speak to any of our sales department for pricing and availability, please don't hesitate to contact us at 847-658-8130.

Is Your Maintenance Turnaround Approaching? Marshall Wolf Automation Can Help

Marshall Wolf Automation, your industrial automation distributor, is your source for maintenance turnaround automation products.

As your one-stop shop for your maintenance turnaround automation products, Marshall Wolf Automation can supply your requirements for motors, variable frquency drives, all  types of sensors, industrial light towers, power supplies, gearboxes, and contactors.

Marshall Wolf Automation, is an authorized distributor for many automation manufacturers such as, Lenze AC Tech, Teco, Weg, Leuze, Baumer, Pepperl & Fuchs, Carlo Gavazzi, Patlite, Werma, and Bonfiglioli USA, just to name a few.

Sourcing maintenance turnaround products can be time consuming, costly and confusing.  Let Marshall Wolf Automation ease you through the process and save you money!

In addition to the huge product offering noted above, Marshall Wolf Automation offers a large variety of specialty automation products.  Please visit our user-friendly website at www.wolfautomation.com and consolidate your purchasing.

Please email any inquiries to sales@wolfautomation.com.

What Is Vector Control?

I started my search by checking out Wikipedia. I then looked up and read a number of things to come up with my very own simplified explanation. Disclaimer: I am in no way an engineer! This topic gets pretty deep, pretty fast. I'll do my best to keep it basic.

Vector control drives basically control 3-phase AC electric motor output by using two variables; voltage magnitude and frequency. We'll go just a little bit deeper to explain that vector control is available as field oriented control (FOC) or sensorless.

Most variable frequency drives used are Volts/Hertz, which means they provide open-loop operation. These drives are unable to retrieve feedback from the process, but can generally do the job for most applications. If these drives are not accurate enough then you want to take a look at vector control.

In general, if your application requires higher levels of accuracy, vector may be the way to go. These high performance AC drives can adjust themselves to sustain the programmed speed, rate, torque, and/or position.

Marshall Wolf Automation is a variably frequency drive powerhouse! We have a large inventory ready to ship, competitive pricing and we are authorized for all the top brands. Did I mention complimentary tech support?

View all of our AC drives now!

AC Tech Drives Sales Milestone!

Marshall Wolf Automation has reached $1 million dollar in sales for Lenze AC Tech's fiscal year.

Lenze AC Tech is a key product line for Marshall Wolf Automation and we are very excited to announce this milestone

Marshall Wolf Automation is your authorized stocking distributor for AC Tech variable frequency drives. Our inside sales and technical support staff can quickly assist you in finding the best high performance AC drive for your application.

Thank you to all of our customers that helped us reach this goal!

How old is my AC Tech drive? Unlocking the serial number secrets!

Sometimes we receive calls with older AC Tech variable frequency drives that might be replaced, but the end user has no idea of the age of the unit. 

This could occur for a variety of reasons; they didn't purchase it, it came installed on an OEM piece of equiment or was existing in the factory.  As a distributor, we don't always have access to all of the manufacturers internal documentation, but here we can now break down the important parts of the serial number to identify the month and year of manufacture.  It's very helpful, especially when trying to figure out if a drive is still under warranty. 

So let's look at the following example:

The following is from an AC Tech unit serial plate:  R14880903   What do we need to glean from this number?  We only care to look at the last four (4) digits, in this case (0903) 

The first two digits (09) signify the year of manufacture ( 2009 ), the last two digits ( 03 ) signify the week of 2009 that it was manufactured, i.e. the 3rd week of 2009. In this case, the drive was manufactured the 3rd week (January) of 2009. 

This coding applies to all AC Tech Drives, if you have a need for a Lenze AC Tech replacement or new application, please don't hesitate to contact us.  We can help size your application after some technical query. 

Check us out on the web at www.wolfautomation.com or contact us at 847-658-8130 or email us at sales@wolfautomation.com.  Wolf Automation is your authorized AC TECH LENZE drive distributor.  We are one of the top AC TECH LENZE AC VFD distributors in North America.   Contact us today, we can help!

Tech Question Regarding AC Tech Lenze SMVector Drives

Question:

 

I took your advice and downloaded the operator's manual for the Lenze AC Tech SM vector drive and have read through it a couple of times.  I have a couple of concerns:

# 1- I have some worry about the admonition about starting the drive into a coasting motor.  In our application it should not be a big problem but there's always a chance that the operator could give a "stop" command, change his/her mind and immediately give a "run" command while the motor was still coasting down. 

If I understand the manual, if we set the controller to stop with DC braking, the motor will not restart until it has come to a stop.  That is, a "run" command would be ignored until the motor had stopped.  Is that a correct interpretation?

#2 - Second, for the motor parameters required for torque limiting in vector torque mode, the stator resistance and stator inductance could be measured directly but the manual seems to suggest that those parameters would also be calculated by the controller during set-up, depending on how P399 is set.  Am I interpreting this correctly?

Answers:

 

#1 The drive will not start if the DC brake is active; but keep in mind, if the drive is set up for coast with a DC brake, the moment the drive sees a stop command the DC brake will engage.  So, the motor will have a DC voltage applied and will probably still be spinning, you can do that, but it’s not good for all applications.

#2 As far as the stator resistance and inductance go.  Those values are actually measured by the drive during the calibration for vector mode.  So typically after entering 306-306, set 399 to standard calibration and apply a start command.

Send your questions in! Marshall Wolf Automation offers in-house technical support for all of our products.

 

 

AC TECH LENZE -SMV series drives have new sequencing parameters!

The AC Tech Lenze's SMV frequency drive is one of our most popular VFD's in the 60 HP and under market. 

The drive is extremely popular, due to a wide variety of input power (voltage/phase) from 120V single phase to 600V 3 phase configurations.  The drive also comes in a variety of enclosure specifications from NEMA 1 to NEMA 4x indoor and outdoor rated models and even with an integral disconnect switch if desired. 

One of the strongest features of the series is the ease of programming, extremely simple compared to most other competitors models.  The market now has even more capability with this versatile series.  What am I trying to say?  New and improved, well... not new, but with great improvements. 

Sequence Parameters:  What does this mean?

Well, the NEW parameters P700; provides function consisting of 16 step segments, each individual step can have its own RAMP TIME, TIME SPENT IN INDIVIDUAL SEGMENT, and OUTPUT FREQUENCY.  The sequencer has three different modes to control how the drive moves through each individual step segment, IE: Timer transition, Step Sequence or Timer and Step Sequence.  Sections 4.5.9 through 4.5.9.3 of the Operating Manual explains the function and programming. 

You can find the manual on our website at www.wolfautomation.com.   Next question is, what do I need this for? You can use it to do timing functions, time out blowers, pumps, cycle equipment; kind of like integrating a mini PLC or smart relay right into the drive. 

When thinking about your next drive, think about AC TECH LENZE'S SMV series of VFD's, if this drive fits your horsepower requirements, consider this drive it's a winning combination that is hard to beat.  Wolf Automation is your Industrial Automation Distributor for VFD's -  7 different brands to meet your VFD needs.  Contact us today, we can help, call us at 847-658-8130 or email us at sales@wolfautomation.com

 

Student Looking For A Variable Frequency Drive Recommendation

Question:

I am a Ph.D. student working in the Department of Mechanical Engineering in the University of British Columbia.

I have a blower with a 230/460 Volts AC, Three Phase (17.4/8.7 Amps), 7.5 hp motor.

I am looking for a variable frequency drive for this blower to change the motor speed and so blower flow rate.

Please provide me with your suggestions for appropriate VFD for described motor that suit my technical requirements.

I look forward to hearing from you soon.

Answer:

Take a look at the AC Tech SM Vector variable frequency drive. Below I have quoted both the 230 and 460 volt input versions as I did not know the input voltage and the motor can run off either.

ESV552N02TXB AC Tech 7.5 HP Nema 1 230 volt input $441.10 or ESV552N04TXB AC Tech 7.5 HP Nema 1 460 volt input $438.90

Marshall Wolf Automation is your authorized AC Tech Lenze distributor for their complete line of high performance AC drives.Whic

 

Lenze AC Tech and Automotive Application: Gear Testing Machine

Marshall Wolf Automation, your full-line industrial automation distributor, is your source for Lenze AC Tech products.

Following is an application featured on the Lenze AC Tech website.  The customer was an engine starter gear manufacturer and the application was a gear testing machine.  The product used was a PositionServo Drive.

Twin PositionServos Gear Up Engine Starters

A manufacturer of gears for automotive engine starters recently incorporated two Lenze-AC Tech PositionServo drives into it’s test process. Test engineers chose the PositionServo for two distinct features: its integrated motion control for direct connection to an upline PLC and its intuitive interface for easy operator control. Two seemingly dissimilar features of a servo drive but a true benefit of the PositionServo  drive.

The two PositionServo drives provide precise motion and torque control required on the threaded spindles, an integral part of the machine that tests the gears of the automotive engine starters. The two drives start simultaneously yet run independently, rotating the spindles to a set revolution limit while also monitoring the torque on the spindles. If the torque reaches a preset maximum value set by the EPH-H315 HMI, then the operator receives a fault message indicating sub-par threads.

The main system PLC is informed of the test failure in addition to the HMI. After acknowledgement by the PLC, both PositionServo drives revert to unscrewing mode and return the spindles to home position. The test cycle is fully automatic, however with the inclusion of the HMI, the operator is able to cycle each drive in manual mode if the need arises. Additionally, the fault diagnostics and status functions of each PositionServo are displayed on the HMI in real-time.

Please visit our user-friendly website at www.wolfautomation.com.  We have a huge product selection of industrial automation equipment.

Please send any inquiries to sales@wolfautomation.com.

 

 

 

Lenze Americas News - Automation Conference May 2013.

Lenze Americas - AC tech NEWS !!

Whether you are an attendee or an exhibitor, attending a trade show can be a great way to keep your fingers on the pulse of the industry; hear about the latest trends; see whether there’s any new technology that affects your field, meet old friends and make new ones.

If you are planning to attend any of the following shows, we hope that you’ll make time to stop by the Lenze Americas booth. We look forward to talking to you in person.

We will be exhibiting at these upcoming Trade Shows:

The Automation Conference 2013

Chicago Marriott O'Hare

Chicago, IL 

May 14th and 15th, 2013

www.theautomationconference.com

Call Marshall Wolf Automation today, we can help! Phone 847-658-8130, email sales@wolfautomation.com or check out our website at www.wolfautomation.com.