Showing posts with label variable frequency. Show all posts
Showing posts with label variable frequency. Show all posts

Sunday, February 23, 2014

Toshiba S9 and S11 Drives in Stock

The below Toshiba S9 and S11 Micro drives are in stock at Sords Electric.
Note that the Toshiba S15 drive have replaced the S9 and S11 drives.

The drives below are all NEW and unused in original packaging with manuals except the S11-2015PM-WN which was installed and then returned. It is marked below as used.


Toshiba S9-2022PM-WM  sold April 2014

3 HP, 230v, 3 phase/3 phase


Toshiba S9-4055PL-WN

7 1/2 HP, 460v, 3 phase/3 phase







Toshiba S11-2015PM-WN (used)

2 HP, 230v, 3 phase/3 phase


Toshiba S11-2075PM-WN

10 HP, 230v, 3 phase/3 phase


Toshiba S11-2110PM-WN

15 HP, 230v, 3 phase/3 phase


Toshiba S11-4007PL-WN    Sold March  2014

1 HP, 460v, 3 phase/3 phase


Toshiba S11-4055PM-WN

7 1/2 HP, 460v, 3 phase/3 phase














Call Sords Electric at 800-929-2845 to order, Syd or Val.
Or click on the part numbers above to order from our Web Store.




Toshiba Toshiba  Toshiba Toshiba Toshiba Toshiba Toshiba Toshiba

Tuesday, June 25, 2013

Toshiba Global EQP Motors

Sords Electric can provide the Global EQP Toshiba efficient Electric Motors

Toshiba's general purpose, totally enclosed fan cooled, EQP Global motor series is Toshiba's next-generation motor product line. This cutting-edge motor product line is designed to meet or exceed the competitive demands of the global market, as well as the requirements of the Energy Independence & Security Act of 2007 (EISA), while maintaining the high reliability and quality expected from Toshiba. 



Designed for severe duty applications and built on over 20 years of success with the Toshiba EQPIII motor series, the EQP Global SD features multiple new design enhancements that make it one of the lowest cost-of-ownership products in the industry. 


NEMA Premium® Efficiency (1 through 500 HP) 
Meets or Exceeds Energy Independence & Security Act of 2007 (EISA)
Addresses Global Motor Specifications Including CE, NEMA, & IEC
Dual-Frequency 50/60 Hz Design (50/60 Hz Listed on Nameplate on 1 though 75 HP)
Inverter-Duty Rated Multi-Mount on 140 Through 445 & N449 Frames
Cast Iron Conduit Box as Standard


Nameplate
• Stainless Steel 
• NEMA Premium® Design 
• Etched Lettering 
• Dual-Frequency 50/60 Hz on Nameplate 
• Inverter Duty Rating on Nameplate
(1 to 200 HP, 4- & 6-Pole)

Construction
• Cast Iron Frame & Bearing Brackets 
• Shaft Slinger Protection 
• Multi-Mounton 140 Through 445 & N449 Frames 
• Gasket Provided Between Motor Frame & Conduit Box 
• Typical Unfiltered Vibration Levels of 0.08 Inches/Second or Less 
• IP54 Protection 
• Multiple Drain Provisions for Horizontal & Vertical Mounting

Conduit Box
• Gasketed Cast Iron Construction 
• Provision for Grounding 
• Terminal Lugs on 280 Frame & Larger 
• Rotatable(90°) 
• NPT Drill & Tap Conduit Opening

Bearing System
• Oversized 300 Series Bearings on All Frames (DE&ODE) 
• Regreasable 280 Frame and Larger 
• Locked Drive-End Bearing 210 Frame & Larger 
• Low Temperature-Rise for Extended Life
• L-10 Life of 150,000 Hours for Direct-Coupled Applications 
• L-10 Life of 40,000 Hours for Belted Applications

Insulation System
• Major Components Made from Class H Rated Materials 
• Low-Loss Electrical Steel 
• Exceeds NEMA MG1 Part 31 
• 20:1 Constant Torque & 60:1 Variable Torque (1 to 200 HP, 4-&6-Pole) 
• Voltage Withstand Capability of 2000 V in 0.1μs
• Large Thermal Margins for Extended Life & Reliability 
• Phase Paper & Coil Bracing on Both Ends on All Motor Ratings

Testing
• 100%  No-Load Commercial Test per IEEE 112 on All Motors 
• On 440 Frame & Larger:
» Commercial Test & Vibration Test 
» 100% of Bearings are Ball-Pass Frequency Tested

Severe Duty, Suitable for Use in Division 2 Hazardous Locations

Motors Suitable for Horizontal & Vertical Mounting; Motors also Available with C-Face Mounting

Class F, Exceeds NEMA MG1 Part 31 (Inverter Duty)

3600, 1800, or 1200 RPM 


Toshiba EQP 840 and Toshiba EQP 841 Motors are also available.

Technical Questions to be directed to Syd at 216-765-4230







TOSHIBA EQP SD ELECTRIC MOTORS FOR INDUSTRY








Sunday, March 17, 2013

Variable Frequency Drives - Toshiba

Variable Frequency Drives - VFDs / ASD's ~ Inverters for Electric Motors

Toshiba Drives from Sords Electric provide Excellent Motor and Pump control.

General discussion on uses and how they work.

You can divide the world of electronic motor drives into two categories: AC and DC. A motor drive controls the speed, torque, direction and resulting horsepower of a motor. A DC drive typically controls a shunt wound DC motor, which has separate armature and field circuits. AC drives control AC induction motors, and-like their DC counterparts-control speed, torque, and horsepower.


Variable Frequency Drives (VFD's)  also known as Adjustable Speed Drives, are used to vary the speed of an electric motor. They do this by changing the frequency of the electric power going to the motor. They work only with three-phase power. Today they are very economical.
In the United States, normal electric power is supplied at 60 cycles per second, sometimes called 60 hertz (Hz). At this frequency motors run at 1,800 rpm, 3,600 rpm, 1,200 rpm, or 900 rpm, depending on how they are wound. The number of poles in the winding determines its speed. For example, four-pole motors run at 1,800 rpm, and two-pole motors run 3,600 rpm.
The actual motor speed, as read on the motor nameplate, is a little lower than these theoretical figures because of slippage that occurs.
The speed of the motor changes in direct proportion to the hertz. Thus, a four-pole motor running at 45 hertz will turn 1,350 rpm, and a six-pole 1200-rpm motor at 40 hertz will run 800 rpm. A motor can be sped up, also: a four-pole motor running at 90 hertz will turn 2,700 rpm.
Most VFD's come with a preset limit of 60 Hz. This can be easily changed.
When a motor is slowed down, the cooling fan that is mounted on the motor shaft also slows down. Thus, motors have a tendency to overheat at low speeds like 10 Hz or 15 Hz. Feel the motor to see that it is not overheating. A Toshiba premium efficiency motor will overheat less. Low speeds are fine for a trial, but they may not be suitable for extended operation.
VFD's have a built-in circuit breaker that shuts down the motor if the amps get too high for the speed at which the motor is being run. This provides excellent (the best we know of) electrical protection for a motor and the machine it is driving.
It is best to have a VFD that is rated for more horsepower than the motor being driven. This gives more flexibility. However, where electrical overload protection is deemed important, the rating of the actual motor being driven should be loaded into the VFD. Otherwise the VFD might put out enough power, if called for, to burn up the motor.
It is very easy to install a VFD. They work only on three-phase power output, some Toshiba S15's have single phase power in. So there are four wires coming from the power control panel: white, black and (usually) red power wires and a green ground wire. The three power wires are hooked to the L1, L2 and L3 terminals. There are three output terminals, labeled T1, T2 and T3 (sometimes U, V, and W), to which you connect the power wires going to the motor.
When you turn on the motor, it may be running backwards. It is usually easy to change the direction of rotation with the VFD itself. Most VFD's have a simple toggle command for forward and reverse.
Unfortunately, when the motor is shut down and later restarted, it will restart running backwards again. To correct this permanently it is necessary to switch two of the power leads. It is a little tricky to change the direction of rotation of a motor with a VFD. Simply switching leads at the main circuit breaker in the motor control panel will not work. Instead, it is necessary to switch the leads coming out of the VFD, the ones going to the motor.
Once a VFD is wired up, there may be frustration trying to get the motor to start. The solution usually is to toggle from the Remote to the Local operation, then hit the Start button.
To change the speed (frequency), get into the frequency adjustment display (next to the actual frequency output display). Toggle the speed up or down, then hit the enter button.
Amps can be read by toggling the menu button to the amps display. Amps reading are a little peculiar with VFD's. They are no longer directly in proportion to the power being consumed. So, use them as a reference only.
Please do not let water and electricity to mix around a VFD. It is very easy to fry a VFD, and they are not worth trying to repair when you do. Be sure to have a plastic bag or sheet over the VFD. Protect the VFD from dripping pipes, rain, and wash-down water. Also, use GFCI's if necessary for human protection in wet areas.
VFD's are good for only one voltage, either 208-220-240 volts or 440-480 volts. Be sure you know what voltage you are working with. There are more sophisticated VFD models that work on both voltages.
For advanced students we offer the following: Basically, with a VFD set below 60 Hz, the motor drops maximum horsepower output and instead holds constant torque. Above 60 Hz, the horsepower is limited to the motor nameplate maximum, which means there is a reduction in torque. Some VFD's can be set for overload trip on either amps or torque; set it on torque for the best overload protection.
The input section of the drive is the converter. It contains six diodes, arranged in an electrical bridge. These diodes convert AC power to DC power. The next section-the DC bus section-sees a fixed DC voltage.
The DC Bus section filters and smoothes out the waveform. The diodes actually reconstruct the negative halves of the waveform onto the positive half. In a 460V unit, you'd measure an average DC bus voltage of about 650V to 680V. You can calculate this as line voltage times 1.414. The inductor (L) and the capacitor (C) work together to filter out any AC component of the DC waveform. The smoother the DC waveform, the cleaner the output waveform from the drive.
The DC bus feeds the final section of the drive: the inverter. As the name implies, this section inverts the DC voltage back to AC. But, it does so in a variable voltage and frequency output. How does it do this? That depends on what kind of power devices your drive uses. If you have many SCR (Silicon Controlled Rectifier)-based drives in your facility, see the Sidebar. Bipolar Transistor technology began superceding SCRs in drives in the mid-1970s. In the early 1990s, those gave way to using Insulated Gate Bipolar Transistor (IGBT) technology, which will form the basis for our discussion. Toshiba manufacturers their own IGBT's and thus has complete control and quality measures for their drives.

The drive's control board signals the power device's control circuits to turn "on" the waveform positive half or negative half of the power device. This alternating of positive and negative switches recreates the 3 phase output. The longer the power device remains on, the higher the output voltage. The less time the power device is on, the lower the output voltage. Conversely, the longer the power device is off, the lower the output frequency. The speed at which power devices switch on and off is the carrier frequency, also known as the switch  frequency. The higher the switch frequency, the more resolution each PWM pulse contains. Typical switch frequencies are 3,000 to 4,000 times per second (3KHz to 4KHz). (With an older, SCR-based drive, switch frequencies are 250 to 500 times per second). As you can imagine, the higher the switch frequency, the smoother the output waveform and the higher the resolution. However, higher switch frequencies decrease the efficiency of the drive because of increased heat in the power devices. 



Drives vary in the complexity of their designs, but the designs continue to improve. Drives come in smaller packages with each generation. The trend is similar to that of the personal computer. More features, better performance, and lower cost with successive generations. Unlike computers, however, drives have dramatically improved in their reliability and ease of use. And also unlike computers, the typical drive of today doesn't spew gratuitous harmonics into your distribution system-nor does it affect your power factor. Drives are increasingly becoming "plug and play." As electronic power components improve in reliability and decrease in size, the cost and size of VFDs will continue to decrease. While all that is going on, their performance and ease of use will only get better. 



Please contact us at 800-929-2845 or use our contact form.

Saturday, February 23, 2013

Toshiba S15 Micro - Drive

Sords Electric has the new Toshiba S 15 micro drive in stock and ready to ship.

The Toshiba S15 drive replaces the Toshiba S11 micro drive (which replaced the S9 drive).

Here is a discussion on the 2 drives.


Towards the end of 2012 Toshiba began to introduce the New S15 Series Adjustable Speed Drives to the market place. In the process of adding a totally new drive they also began to obsolete the S11 series drive that had been Toshiba’s main Micro Drive for a number of years. As the S11 Inventory is depleted they will no longer be available and the S15 will be the only Micro Drive available.

We have been asked what are the differences between the S15 and the S11? There are some new features that were not available on the S11 which we will discuss shortly. If you have been using the S11 drive for any period of time you may be reluctant to make the switch to the S15, but be assured the S15 will perform the same tasks as the S11 however  with so new and interesting added features.
First, there will be two S15 drives available, the Premium S15 and the basic S15 drive.
·      The Premium S15 model features the use of an STO terminal and permanent magnetic synchronous reluctance motor control for permanent magnet motors. The STO or Safe Torque Off terminal is typically designed to meet European safety standards, which have recently begun to appear in North America.
·      PM Synchronous Reluctance Motor Control
§  3 Automatic Magnet pole position detect function to achieve zero speed torque and maximum drive efficiency.
§  Servo torque characteristics without a sensor.

Here is are some of the differences between the S15 versus the S11drives.
·      A major change in the S15 over the S11 is the replacement of the front mounted potentiometer with a rotary encoder with separate center push button. The encoder will be used for menu navigation as well as setting the frequency from the keypad.  
·      All S15s have a smaller footprint than the corresponding S11 in the same power size.
·      An easy button has also been added to the front mount keypad that can be programmed to a variety of different functions. From default the EASY button will switch between commonly used parameters and all parameters functioning as a simple startup wizard. It can be reprogrammed to be a shortcut key to a user defined parameter, A Local/Remote key, or a monitor hold key to capture peak or minimum value.

The S15 processer has also been upgraded over the S11 to offer faster logic response times and improved communication response times. The chart below shows the difference in response times between the S15 and the S11 in milliseconds.

Response Time
S15
S11
Logic Input
8.3 – 9.7 ms
10 – 23 ms
Communications
(at 19200 bps)
2.6 – 4.8 ms
10 – 20 ms





·      Expanded Communications
§  Modbus        
§  CAN open    
§  Profibus
§  Device NET  
§  Ethernet
§  Ether CAT     
§  CC Link
§  NOTE: A Communications Adaptor (SBP009Z ) is required for all communications options cards
·      RS485 Communication Port
·      Multi-Loader Option
§  The PWU003Z Multiloader is a tool which allows users to download and upload parameters between S15 drives, which requires no power to the VFD. The S15’s configuration file can be copied to the Parameter writer's SD card. The user may then select and transfer the configuration file from the Parameter writer to the S15. Once the initial transfer is complete, the user can use Quick Store mode, which allows the Parameter writer to load the same update file onto several S15’s in succession.

·      Store 8 faults in history compared to 4 in S11
·      My Function (basic PLC style programming)

§  My Function is available in both the Standard and Premium Model S15 power units
§  The S15 Instruction Manual does not list My Function parameters
§  A separate My Functions manual may be provided upon request


·      STO (Safe Torque Off) Terminal (only on premium model) Will not output VFD power without 24Vdc applied to STO terminal. Similar functionality as “ST” as it prevents firing of IGBTs when not active. This is a Hardwired terminal and cannot be reprogrammed for any other task
·      External 24VDC Power Input
·      DIN rails are available for the S15 drive for easy wall mounting. These are only available for certain horsepower’s. These include drives up to 3HP for 230V input and 2HP for 460V input.
·      Remote Keypads
§  TOS-SN-10B, Includes 1.5 meter cable
§  RKP002Z, May be used as a parameter copier Capable of storing/writing parameters for up to three models. One CAB001x-0A cable is necessary.
·      600 Volt Drives
§  At this time, Toshiba’s R&D has not begun developing plans for a 600V class S15 or a S15 We will continue to stock the 600V S11 series drives to accommodate this market. In addition to that, we will continue to stock full S11 options for these drives until further notice.
·      IP54 Enclosure Drives
§  We will continue to stock IP54 Enclosure S11 series drives to accommodate this market. In addition to that, we will continue to stock full S11 options for the IP54 drives until further notice.

Toshiba’s YouTube channel, added earlier this year, is up and running with a few promotional product videos, but primarily low voltage drives application notes.
You can access this website by going to www.youtube.com/ToshibaIndustrial

These were filmed and produced by Toshiba International Corporation, the video series called TIC-talk are continually being added to walk users through basic programming or certain applications.

Some of the current videos include basic VLP setup, VLP features such as sleep mode, start and stop points, calibrating analog input terminals, resetting the drive to factory defaults, or transferring parameters between drives using the EOI. This screen capture shows how the video demonstrates how to program the drive and also does a functionality check using a demo setup.

We also have a larger library of application notes available in addition to VFD specifications, manuals, brochures, drawings, and software.

You can contact us for these files at 216-765-4230, 
or Email info@sordselectric.com. 

Give us your email address and we will be please to send you what ever you may need.





www.sordselectric.com