TECO Westinghouse Drives | Marshall Wolf Automation

TECO Westinghouse EQ7: The newest series of high performance VFD's!

Monday, April 15, 2013
by Chris Kinsfather

TECO-Westinghouse Motor Company offers an extensive line of variable speed drives and soft starters for your motor control applications.

The EQ7 is the next generation of variable frequency drives for the market. TECO-Westingouse also offers VFD rated motors and Marshall Wolf can offer all other complimentary devices to allow you to create you next system. We also offer a wide variety of motors that are matched with the drives and soft starters including vertical hollow shaft, rolled steel, and NEMA premium efficient NEMA motors.

Marshall Wolf Automation is your authorized TECO Westinghouse distributor for both the TECO AC drives and motors!

Manufactured by TECO Westinghouse
New from TECO!
High performance, full featured drive
- Constant torque, 1-900hp
- Variable torque, 1-1000hp
Four selectable control modes
- Volts/Hertz, dynamic torque, sensorless vector, closed loop vector
Can control almost all variable speed applications
Advanced speed and torque control capabilities
Advanced tuning features
PID loop control features
This drive competes with:
- Yaskawa F7, G7 series
- Square D Altivar 71
Ideal markets for the TECO EQ7:
- Large fans and pumps
- Compressors
- Wastewater
- High torque applications
- Extruders and molding machines

Marshall Wolf Automation is your leading Industrial Automation Distributor for all TECO Westinghouse drives. The EQ7 is the one to beat, contact us today or visit out website to get your quotation for the EQ7 you need. We can be reached at 847-658-8130 or on our website at www.wolfautomation.com Check us out today, we can help!

Are you looking for a drive for a pumping application?

Saturday, March 30, 2013
by Caryl Clement

Then take a look at the MA7200 series from Teco-Westinghouse! This general purpose fan and pump variable frequency AC drive comes from 1hp to 100hp!

The TECO MA7200 Plus offers easily read parameters and status in plain English text on a 2 line by 20 character lighted LCD, eliminating the need to memorize parameters - the user can set up the drive without an instruction manual!

Straight forward monitoring of drive status through the operator is also available, which simplifies set-up and troubleshooting. No extra hardware is required on this drive.

The copy feature is included as standard in the keypad. Simple cloning of the drive program is available, making it perfect for the OEM.

The TECO MA7200 offers Sink or Source Selectable Digital Inputs - 4 Preset, 4 User Programmable, 16 Preset Speeds, 2 Analog Inputs, 2 Analog Outputs, 3 Multi-Function Output Contacts - 1 Form C Relay, 1 Form A Relay, and 1 Open Collector Output.

It has scalable PID feedback for accurate system regulation.

The TECO MA7200 Plus allows the user to set up basic parameters for simple tasks or take advantage of advanced features for demanding applications. It can set custom run patterns for multiple machine cycles.

Marshall Wolf Automation, your factory authorized industrial automation distributor, is now open longer to serve you better! 7:30am until 6:00 pm CST.

Baldor and The Movable Platform

Thursday, March 28, 2013
by Scott Welch

Question:

We would like options to use 110 volts and we try to avoid 220 or 240 volts because 220 volt outlet is 50 feet away from platform that is movable with 10 straight wheel casters.

Platform will be real heavy as it will need to hold 4 people and a huge bed.

Brand : Baldor
MAX INPUT:.471
Ratio 40
Output torque .1
461 in. lbs
ID#HF-918-40-BS or B5-H100
Cat. Spec GHF4018AH/GRO212B006
Serial#G24000153

Answer:

GH1/54C Teco Westinghouse 1.5 hp 230/460 three phase induction motor 56c frame with feet $213.60

ESV112N01SXB AC Tech 115 volt single phase input, 230 volt three phase output rated at 1.5 hp output - variable frequency drive

The gearbox you currently have will only take in .47 hp and will not stand up to a 1.5 hp motor.

I looked at Baldor and did not see a 40:1 ratio available at 1.5 hp. You have a little room on the gear ratio as the drive will help with the actual output speed but at 461 in lbs of torque that you are currently attaining, which is not nearly enough torque to do what you want.

A 1.5 horse power motor with a 40:1 would give you roughly 2160 in lbs. A 30:1 would get you to 1620 in lbs.

You can verify your torque needs by connect a torque wrench at the point where you couple to the platform. Load it up and give it several pulls and document the torque necessary to get the platform to move with a full load. This will get you in the ball park torque wise and then we will know what the best gear ratio for the application.

The drive will maintain torque through the speed range but will not increase the torque developed by the motor/gearbox combination.

Scott Welch, Technical Sales Support

Do you have a technical question we can help with? Ask Tech Support!

Do I need a VFD?

Thursday, February 14, 2013
by Chris Kinsfather

When should you use a drive and when do you not want to use a drive? It is a question that gets asked all the time. How does one know when to use a AC VFD versus when to use a device like a rotary phase converter. It comes down to the type of application. We usually like to qualify by asking the following question; What is it that you are trying to control? Are you trying to control a motor? Or are you trying to provide a general power to be able to use for just about anything 230V/3PH/60HZ?

If you are actually trying to directly control the speed of a 3 phase inverter duty motor and intend to directly connect to that motor then this the type of device for you. If you are just trying to convert from a single phase scenario to 3 phase to be able to run

general equipment, then a rotary phase converter is the better tool for the job as a variable frequency drive is not a good selection as it requires a dedicated motor.

Next step, how do I pick the right drive. Without getting into to many details. Lets define the application, your horsepower of you motor, your voltage that is available from your panel board, you voltage for the current of future motor. Once that selection is made, then lets discuss the actual application. What is the motor controlling; A fan, a pump motor, a belt conveyor, a vertical milling machine, a lathe, blowers, vacuum systems, etc. This will direct to the basic type of AC VFD to be used; either a Volts/Hertz drive (Constant torque) or Sensor/Sensorless Vector drive type (Variable Torque). Some drives are specific (older generation type drives) and more modern drives can accommodate all modes into a single drive.

Using our web configurator, you can shop by Brand, Type of Drive/Application Topics, Input Voltage, Price Range, Housing Type, Horsepower, Available Options. You can keep narrowing your search down until a few. Once you pick a brand and family or series of drive, you can get to the landing page. After reading through the page, you can also find a copy of the manufacturers catalog or specification sheet and even the operating manual at times. To configure a part number to obtain a price, click the orange button in the upper right hand corner of the page. This will take you to a series of drop down menus. Typically it will ask you to select voltage and or phase if choices are provided, then you would select your horsepower. The system will then generate a part number and a price. You can add to you cart and continue to shop for a multitude of accessories that are associated with that specific drive. Click here to get started searching!

You could also continue to shop for items such as, added NEMA rated enclosures, optional push buttons, selector switches, emergency stops, etc to where you could build a custom with standard product to make, remote operators, and indoor or outdoor rated applications. You could also have our company build you a custom panel with basics or outfitted with standard options and or total customs.

Contact Marshall Wolf Automation today, we are your authorized distributor for: AC Tech Lenze, Hitachi, Fuji, TECO Westinghouse, Delta Industrial Automation, Gefran, WEG, U.S. Drives.

Call today we can help, 847-658-8130, sales@wolfautomation.com, or www.wolfautomation.com

Application Question & Recommendation

Monday, January 28, 2013
by Scott Welch

Here is a recent request I received into our technical department:

My Senior Design group is designing a brake dynamometer for a car. We require a 5 hp AC industrial electric motor with a starting torque of 13 ft*lb that is capable of rotating our shaft 1200 RPM.

The AC motor would also have to be three phase power at 460V. We also require a variable frequency drive to control the speed of our motor during ramp up.

We wanted to ask if you know if a 5 hp 3 phase TECO N3 would be a good fit with a Premium Efficiency TEFC Motor 5 hp 1800 RPM TECO Westinghouse MAX-PE because we know that having a VFD that is compatible with the motor is crucial in preventing the motor from burning out and ensuring that it works properly.

We also wanted to know if the Premium Efficiency TEFC Motor 5 hp 1800 RPM TECO Westinghouse MAX-PE comes with its own insulated bearings, since they are suggested as a precaution in order to eliminate shaft currents that may be imposed on the motor by a VFD. Thank you for your time.

Answer:

As long as you are running 460 volt three phase power into the drive itself the N3 series is a great choice.

You can look at the N3-405-C to handle the 5 hp 460 volt motor. The NP0056 TECO Max PE motor 460 volt three phase 1200 rpm 215T frame and the NP0054 TECO Max PE motor 460 volt three phase 1800 rpm 184T frame.

T = 5252 Php / nr
T = full-load torque (lb ft.)
Php = rated horsepower
nr = rated rotational speed (rev/min, rpm)

The TECO NP0056 would give you 21.88 Ft Lb at 1200 rpm.

The TECO NP0054 would give you 14.59 Ft Lb at 1800 rpm.

I have attached the specification sheet for the motors and the manual for the drive.

Do you have a technical question we can help with? Contact Marshall Wolf Automation today, we are more than just a distributor!

Solutions for AC Variable Frequency Drives when using GFI Circuits

Friday, January 25, 2013
by Chris Kinsfather

A recent development regarding the cohesiveness of small the TECO Westinghouse series of JNEV AC frequency drives under three three horsepower at 120V/1/60 input voltages and using GFI circuits has been raised recently. It seems some in the field users may experience running issues of the drive, due to leakage current tripping the GFI circuit. Please note that the best way to avoid issues is to hard wire from the drive back to your sub-panels circuit breaker. This takes the GFI circuit out of the system. If using a GFI circuit then here are a few possible alterations to improve the running quality and minimize tripping.

1. Reduce the carrier frequency

2. Change C14 running mode from Vector to Volts to Hertz mode.

3. Ground the motor load at a different location versus grounding it to the PE earth ground on the drive.

As we see more drives used with industrial equipment in residential garages, this issue could be come more pronounced, so we at Marshall Wolf Automation wanted to inform our customer base and future customers of the possible issues with equipment when used in these situations.

If anybody has questions regarding this topic, please don't hesitate to contact us in the technical department for further discussions. You can contact us at 847-658-8130, ask for the technical department or email us at sales@wolfautomation.com. Please check us out at www.wolfautomation.com

New Variable Frequency Drive On The Way; TECO EQ7 Series

Friday, January 25, 2013
by Beckie Bordenaro

Stock is headed to the TECO warehouse as we speak!

The new TECO EQ7 series is a full featured, high performance AC drive series. Here are just some of the highlights:

Four selectable control modes – Volts/Hertz, Dynamic Torque, Sensorless Vector, Closed Loop Vector

Can control almost all variable speed applications
High levels of torque boost attainable
Power loss ride through
Torque limit adjustable features
High level of detail and information regarding applied motors
Motor types range from variable torque to full flux vector motors
Process or Dancer control
Loss of feedback detection
Sleep-wake mode
High and low feedback alarms
Wide variety of process set point signals to choose from

Marshall Wolf Automation is your authorized industrial automation distributor for the complete line of TECO Westinghouse high performance AC drives and industrial electric motors.

Search all of our TECO AC drives now!

Are You Looking For A TECO Drive For Your Bridgeport Lathe?

Thursday, January 17, 2013
by Beckie Bordenaro

This is a common call into our technical department. Marshall Wolf Automation is your authorized industrial automation distributor for the complete line of TECO Westinghouse variable frequency drives and motors.

Do you need help finding the best TECO AC drive for your Bridgeport lathe? Maybe you just need a replacement drive? Not a problem, our in-house tech support is familiar with that machine and can help you through it.

Our most popular TECO drive for lathes is our EV series (JNEV part numbers). This is a low-cost, easy to use single or 3 phase variable frequency drive available from 1/4 to 3 hp.

Applications That Benefit From Using Soft Starters

Thursday, December 13, 2012
by Beckie Bordenaro

Soft starters can be used in a wide variety of applications, however, there are advantages for specific industries.

In pump applications soft starters are commonly used to avoid pressure surges. Material handling or conveyor belt systems can be smoothly started - no jerking or stress on drive components.

Other issues that occur when motors generate too much power on starting include belt slip on heater blowers or a sudden buildup of water pressure in washing installations.

A soft starter limits the inrush current which reduces the transient voltage drops that can affect other loads.

The bottom line is that a soft starter will start the motor in a slow, controlled manner. Any application that would benefit from this is ideal!

Marshall Wolf Automation is your authorized distributor for all the top brands of soft starters including Weg, Carlo Gavazzi and TECO Westinghouse.

Search all of our soft starters now!

AC Frequency Drive or Rotary Phase Converter?

Monday, December 3, 2012
by Chris Kinsfather

When would one choose a high performance AC drive over a Phase Converter. We first lets define what these two items are and what they are typically used for in industry. ( Basic Definitions supplied by Wikipedia)

First; A rotary phase converter, abbreviated RPC, is an electrical machine that produces three-phase electric power from single-phase electric power. This allows three phase loads to run using generator or utility-supplied single-phase electric power.

Next; A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.^[1]^[2]^[3]^[4]

These are just the simple definitions to lay some basic ground work. But here at Marshall Wolf Automation we receive many calls where people are looking to utilize the benefits of being able to convert single phase power into 3 phase power through a drive. While it is true that a drive can offer this conversion, it only should really be applied when trying to control a specific motor or a group of motors tied in series all taking the speed control in a master-slave arrangement.

The rotary phase converters best application is when trying to use the item to provide general power in converting single to three phase for general use for power for all products in a facility. The primary difference being that the VFD needs a signal communication feedback from the motor to the drive to be able to "communicate" between the drive and the specific motor. The VFD can't be used as general purpose item just to provide 3 phase power, it will not operate as intended. In those instances "general power" its best to use a the rotary phase converter as the solution of choice.

When it comes to VFD's Marshall Wolf Automation is your premier multi line supplier of VFD's. We carry over 8 brands including; AC Tech Lenze, Delta Industrial Automation, Fuji, Gefran, Hitachi, Teco Westinghouse, US Drives, WEG, along with complementary accessories for the drives.

To further discuss your requirements, please contact us at www.wolfautomation.com, or call us at 847-658-8130 or email us at sales@wolfautomation.com.