Motors, Drives & Controls
By Plant Engineering Staff
The Q9 Series of adjustable-speed drives are designed with oversized transistors and heavy-duty dc bus capacitors. The electronic operator interface has an LCD and simple keypad layout. Windows-based software aids programming and monitoring. The drive’s HVAC features include a fire-speed circuit that forces the drive to run at a preset speed during a smoke purge, and a damper-permissive function that can be used to protect from over-pressuring ductwork. Other drive features include PID control, wire-break function and common communications protocols.
Toshiba International Corp. : www.toshiba.com/ind
Large-capacity ac drive
The SJ700 Series large-capacity ac drive features an improved sensorless vector control algorithm that enables the unit to develop more than 150% starting torque at 0.3 Hz. Using the “0 Hz Domain” open-loop control mode, the drive can develop 130% torque at 0 Hz, which is critical for vertical lift applications. The drive also has a simplified auto-tuning process, built-in sequence programming, voltage surge suppression, advance trip avoidance and configurable sink/source logic on programmable I/O.
Hitachi America Ltd. : www.hitachi.us
Horizontal motor for oil, gas
The API 547 Titan III is a horizontal motor designed to the American Petroleum Institute 547 Standards, and made for oil and gas industry applications such as fans, compressors, centrifugal pumps and blowers. The high-efficiency motor is custom designed to order. Initially available in 250 to 600 hp, each motor features an easy ordering and specification process with 12-week delivery; corrosion protection and TEFC enclosures; and detailed reports on all bearing, vibration and resistance tests.
Emerson Motor Technologies : www.emersonmotors.com
The Model 6 low-voltage motor control center with the TeSys T motor management controller monitors the state of motors that power pumps, blowers, fans, compressors and conveyors; it can alert centralized process control if there is a problem with a motor or if a problem is imminent. The unit features data communications protocols; on-board I/O; alarms that can be transmitted via phone, e-mail or PDA; six discrete inputs and three relay outputs; and interrupt and short-circuit current protection.
Schneider Electric : www.us.squared.com
Solid-state overload relay
The Motor Insight overload relay features solid-state motor protection with ground fault detection; power, voltage and current monitoring; and flexible communications options. Add-on communication adapters enable users to choose among DeviceNet, Modbus, Profibus and Ethernet/IP protocols, as well as several I/O options. The overload relay system can be used with applications such as coal-bed methane well pumps, low-speed mixers, can pumps, mag drive pumps, fractional horsepower pumps and motors and submersible pumps.
Eaton Corp. : www.eaton.com
Servo drive with embedded software
The PositionServo is a servo drive with programming and configuration software embedded inside the drive. The software %%MDASSML%% MotionView OnBoard %%MDASSML%% allows the drive to run without having specific servo drive software loaded into a computer. The drive also has communication capabilities such as Ethernet/IP, DeviceNet and Profibus DP protocols. Advanced debugging tools allow users to save variable watch configurations as project files for later recall. Other features include a memory chip, digital and analog I/O and instant drive setup.
Lenze-AC Tech : www.lenze-actech.com
Motor management system
The TeSys T motor management system records motor history, statistics and time-stamped faults to give users a real-time view of their motor control. The system consists of a multifunction protection device %%MDASSML%% separate from the automation system %%MDASSML%% and an operator control unit for reading and modification of monitored parameters. The device supports up to five fieldbus types, and offers six motor control functions including overload, two-step and two-speed modes. It guards against motor malfunctions such as overload and current peak.
Schneider Electric : www.us.schneider-electric.com
Case Study Database
Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.
2012 Salary Survey
In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.
Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.