POWER FORMERS ENGINEERS (P) LTD. Pune, Maharashtra

DC drives consist of an SCR (Silicon Controlled Rectifier) bridge, which converts incoming three or single-phase AC volts to DC volts. During this conversion process DC drives then can regulate speed, torque, voltage and current conditions of the DC motor. This is ideal for industrial processes such as tube mills, extruders, mixers, paper machines and various other controlled applications. Power Formers can provide several DC Drives from different reputable manufactures. Packages can vary  from Onsite Retrofits to custom multi drive cabinets. Engineering and Integration Power Formers Engineers with its highly experienced engineers and Technical staff can provide solutions for existing drive problems or new applications. Solutions that may be helpful consist of:   Sizing a drive to a target horsepower, current and voltage required. Power and harmonics issues can be addressed and corrected through the use of isolation transformers, reactors and filter packages. Customizing control and analog circuitry to be integrated in with existing engineered specifications. Operator consoles / Door mounted pilot and metering devices MCC and Switchgear installation type custom packaging for growing demands of the industry. Peer to Peer and Master/Slave drive configurations for Follower and High Horsepower applications. Engineered cabinet cooling system for any environment. Today’s drives are more compact and can be placed in smaller enclosures only if the correct cooling is applied. Communication Systems for advanced Modbus, Profibus and Data HighWay linking multiple devices such as power management and HMI/PLC system

• DC Variable Speed DrivePROS
• CONSTorque control and limiting
• Brush life commutation maintenance.Wide speed range (under 5000 RPM)
• Motor high speed limit (high speeds use expensive gear boxes)Trimming capabilities
• Expensive large HP motorsConstant HP capabilities
• Power system harmonicsTrue 4-quadrant regenerative energy conversion
• NAAC Variable Frequency Drive
• PROSCONS
• Improved efficiencyDistance limitations
• Low motor maintenanceLarge system designs (high HP drive foot prints)
• Tight controlCost (encoder feedback)
• Digital controlExpensive regenerative braking
• High speed capabilitiesPower system harmonics
• Reversing capability without extra power elementsNA

In the United States 50% of the total electrical energy generated is consumed by rotating equipment. 65% of this total is consumed by centrifugal or flow related applications such as fans, blowers, compressors, and pumps according to current estimates. Variable speed drive technology offers a cost-effective method to match driver speed to load demands and represents a state-of-the-art opportunity to reduce operating costs and improve overall productivity. Power Formers Engineers  is an OEM that custom packages, integrates and engineers AC Variable Frequency Drives (VFD), DC Variable Speed Drives (VSD) and AC Drive Controllers. Our drive systems integrate top of the line manufacturers, like ABB, Emerson (Control Techniques & Saftronics / Fincor), Siemens and WEG to name a few. Our added value custom drive packages are built to your specifications for your application. 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. AC drives control AC induction motors. DC drives typically controls a shunt wound DC motor, which has separate armature and field circuits. Motor drives are also known as DC Drives, AC Drives, SCR Drives (Silicon Controlled Rectifier Drive), Variable Frequency Drives, Variable Speed Drives, Adjustable Speed Drives, Electric Motor Drives, Electronic Motor Drives, AC Motor Controllers, AC Inverters, Pulse Width Modulation (PWM) Drives and a few other names. Which Drive is Right for your Application? The AC Variable Frequency Drive market is huge, due to the great advances in highly reliable AC power electronics and high power microprocessors. The Flux Vector AC Drive for example, can compete on an application basis that DC Drives would in earlier years be required. Even though AC Variable Frequency Drives are readily replacing DC Drives and motors, there is still a large base of DC equipment that has to be supported by experienced technicians. Joliet Technologies believes that by not abandoning the DC market we can better serve our customer base demands. For example, older machines with multiple exciting DC Analog drives and motors may be a great candidate for retrofitting newer digital DC drive equipment. Saving cost and down time. If your needs are much simpler and speed control is not part of the work scope. Joliet Technologies can provide Custom AC Drive Controllers consisting of contactors, starters, relays, pushbuttons and PLCs. Our engineers can provide all PLC and Peripheral Programming needs. Panels can be designed by another OEM or we can help with engineering to specifications provided. Power Formers Engineers Custom Panel Shop and On Site Retrofit Benefits We have the experience and know how to provide you with the best drive for your application. Joliet Technologies can evaluate your current equipment and recommend either a Retro-Fit or System Replacement. Feel free to contact us with any drive questions you may have. Joliet Technologies is dedicated to provide the highest quality equipment and service. This is why we started this company. With our experience, expertise and commitment, you will be completely satisfied with our workmanship and our work ethic. All work is performed following our Quality Assurance System (based on the ISO9001:2008 Standard), assuring you the highest quality. From system integration to panel fabrication Joliet Technologies provides quality systems and custom control panels for new applications or system upgrades, all in a timely fashion, and at competitive rates. How to Maintain a VFD Do you know how to maintain a VFD? Doing so is easier than you might think. By integrating some simple, logical steps into your preventative maintenance program, you can ensure your drives provide many years of trouble-free service

• Brand NameABB
• ApplicationPalletizing
• Reach2.4 m
• Number of Axis4
• Robot Weight925 Kgs
• Dimensions Robot base1007 * 720 mm
• Position repeatability RP0.2 mm
• Path repeatability RT0.11 mm
• Pay load110 Kgs

Power Formers Engineers announces a new line of stand alone analog field regulators with ratings of 50 Amps DC and 90 Amps DC. Units are current regulated with use of internal CTs and accept a 0-10vdc input. Unit also features field economy, and field fault circuitry. Common Uses: * Units are great for replacing Siemens 3rd generation field regulated supplies, and can be used as spares. * Will accommodate all traction motors (including GE 752* Traction Motors) with high field amps. Designed to be user friendly and installation is a snap with the compact dimensions. 50 Amp & 90 Amp DC Field Regulators This family of field regulators is designed to control the field current of DC motors up to 90 amps. When used in conjunction with either the Mentor II or Quantum III variable speed DC drives, the field regulator is controlled directly via the drive parameters. This allows full customization of the field control for any application. The FXMs can be also be used as stand-alone units when retrofitting existing applications. The field regulators are single phase, controlled thyristor rectifier bridges with a control logic PC board. The bridge can be configured by jumpers to operate in half (single quadrant) or full (two quadrant) control mode. The FXMs may be independently controlled by an external reference, or set for automatic field weakening (constant horsepower) or constant field current. Field economy control via contact or logic input and a field loss relay for protection are provided for stand-alone operation. The unit also has a bar graph display (10% increments of the selected range) for field current magnitude. Maximum output voltage equals 90% of input RMS line voltage. Field current is the controlled variable.

• Power and Field230 – 500 VAC, 3-phase
• Input Frequency:50 – 60 Hz
• Converter Fan:115/230 VAC, single-phase
• Control Power:115/230 VAC, single-phase
• Digital Inputs:Eight (8), 24 VDC
• Digital Outputs:Four (4), 24 VDC One (1) relay
• Analog Inputs:Two (2), ±10 VDC, 12 bit
• Analog Outputs:Two (2), ±10 VDC, 12 bit

Introducing the world’s most competitive DC package ABB has developed a user-friendly drive system package (DCS 400, DMI Motor) to meet the demands of machine builders. Our aim is to offer the best combination of reliable products at the most affordable price, backed by on-time delivery, good partnership and fast response to inquiries. At the heart of the drive package is the DCS 400 – a new generation of DC drives specifically designed to meet the ever-changing needs of machine builders. “Total ease of use” was the foundation of this drive’s development. The result is a drive that is: as easy to handle as an analog drive yet incorporates all of the features of a digital drive. easy to design into machine equipment, with just the right amount of features. easy to install and set-up, even by those without special drives experience. Technical Features Digital 6-pulse converter 10 – 600 Hp (10 – 448 kW) 20 to 1000 A DC Input Voltage from 230 to 500 V, 50/60 Hz Nonregenerative & regenerative drives available IGBT – field supply for field weakening is included Small Design The DCS 400’s compact design brings substantial space savings to machine builders, allowing them to integrate more accessories within the same space. Existing DC drives are easily replaced with the DCS 400. At only 103.4 in (270 mm) wide, and with all the power cabling located at the base of the drive rather than the side, two DCS 400 units can be installed inside the same 233.4 in (600 mm) cabinet. The field supply, including the fuse and choke, are integrated into the DCS 400, further contributing to its small size and simplicity of design. No need for a field voltage adaptation transformer to match the line supply voltage with that of the motor. The DCS 400 uses fewer components, leading to both smaller size and greater reliability. Small Design The DCS 400’s compact design brings substantial space savings to machine builders, allowing them to integrate more accessories within the same space. Existing DC drives are easily replaced with the DCS 400. At only 103.4 in (270 mm) wide, and with all the power cabling located at the base of the drive rather than the side, two DCS 400 units can be installed inside the same 233.4 in (600 mm) cabinet. The field supply, including the fuse and choke, are integrated into the DCS 400, further contributing to its small size and simplicity of design. No need for a field voltage adaptation transformer to match the line supply voltage with that of the motor. The DCS 400 uses fewer components, leading to both smaller size and greater reliability.

AC DRIVE CONTROLLERS AC Drives and AC control circuits are considered to be part of the high tech electrical controls market. Even the more straightforward AC controllers involving contactors, starters, timers, metering and relay logic can become quite technical. Knowing what is going on with the demands on your electrical machinery through first hand knowledge and visual inspections can save you a lot of headaches and downtime. Therefore, the importance of using solid state monitoring devices that send valuable information to your electrical maintenance office or provide you with visual information on the door of the cabinet cannot be underestimated in keeping your equipment up and running & making money. A customized AC Controller from an industrial controls supplier, like Power Formers Engineers, can provide you with all the required components from, programming of the PLC, touch screen controls, simple starter or contactor cabinets, all customized for your unique needs. All down stream electrical auxiliary equipment controls, such as hydraulic pumps, air pumps, solenoid vales, exhaust fans and blowers can be packaged in a single enclosed control system. For MCC (Motor Control Center) AC Controller applications, Power Formers Engineers can add interconnect wire harnessing, PLC sections, and help with engineering and commissioning. From the basic starter panel, to the complex control system, Power Formers Engineers is prepared to work with you, to provide the controls needed to improve the preformance and production of your manufacturing machinery needs. More AC Drive information…