Yaskawa Whitepaper: The I’s and O’s of VFDs

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Facts Worth Knowing about AC Drives – Star and Delta Configuration in Field Weakening Operation Sections 4.5 – 4.8

Facts Worth Knowing about AC Drives – Star and Delta Configuration in Field Weakening Operation Sections 4.5 – 4.8

Machines can create potential or kinetic energy which we want to remove from the machine. The dynamic characteristics of some loads require 4-quadrant operation. A reduction in the stator frequency (and voltage) by the AC drive allows the motor to act as a generator and convert mechanical energy into electrical energy. Motors connected directly to the mains deliver the braking energy straight back to the mains.

 

 

 

Yaskawa America, Inc. Releases HV600 Family of HVAC Drives

Yaskawa America, Inc. Releases HV600 Family of HVAC Drives

The Drives & Motion division of Yaskawa America, Inc. is excited to release HV600 Variable Speed Drives and packages for sale and shipment immediately. The HV600 family of drives employs the latest advancements in variable speed control for HVAC applications. In addition to its wide product range, enjoy effortless setup with HV600’s high contrast display and connectivity with Android mobile devices.

 

 

 

Yaskawa America: HV600 Drive

Yaskawa America: HV600 Drive

The HV600 variable-speed drive is engineered for use in HVAC building automation applications requiring reliable motor control. The HV600 features your choice of IP20/UL Type 1, IP55/UL Type 12, or IP20/Protected Chassis protection classes. Every HV600 comes with HVAC application-specific software presets, a Hand-Off-Auto LCD keypad, a high-visibility Status Ring for quick visual indication of drive status, and a real time clock for system accuracy.

 

 

 

Yaskawa: VFD Panels and Short Circuit Current

Yaskawa: VFD Panels and Short Circuit Current

If you ignore the short circuit current rating (SCCR) of an industrial panel it might just go away anyway. By go away I mean that the panel might just self-destruct. If the available current or energy that reaches the panel in the event of a short circuit in the panel exceeds the levels that the panel can safely interrupt or contain, that energy has to go somewhere. It is the unpredictability of what will happen first that makes an insufficient SCCR so dangerous. Maybe the circuit breaker will explode while trying to open or maybe not open at all because the internals have welded shut? What happens then? Maybe the energy will find a path to ground and a shock hazard is created.

 

 

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

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