Acronyms
In building systems, HVAC stands for this.
What is Heating, Ventilation, and Air Conditioning?
In regenerative braking, excess energy from the motor is returned here instead of being dissipated as heat.
What is the power supply or grid?
This tuning process built into many Yaskawa drives helps accurately match motor parameters for closed-loop control
This material is typically wrapped around drives when breakdown testing.
What is cotton?
Newton's first law is about this concept.
What is inertia?
In power electronics IGBT stands for this.
What is Insulated Gate Bipolar Transistor?
A squirrel cage rotor gets its name because it resembles this exercise device.
What is a hamster wheel?
This Yaskawa software allows PC-based configuration and monitoring of drives.
What is DriveWizard?
This electrical withstand test became mandatory in many countries after a series of fatal TV set fires in the late 1960s.
What is a dielectric breakdown test?
In statics, this is the sum of all forces acting on a body in equilibrium.
What is zero?
In automation, PLC stands for this.
What is Programmable Logic Controller?
This type of feedback device, often paired with Yaskawa servo motors, provides precise position and velocity data.
What is an encoder?
On offshore oil rigs, VFDs often drive these pumps, vital for transporting drilling slurry from the bit to the surface.
What are mud pumps?
UL 2043 is the standard for this.
What is the plenum fire and smoke release test?
This Greek letter is commonly used to denote strain.
What is epsilon (ε)?
In electrical equipment standards, NEMA stands for this.
What is National Electrical Manufacturers Association?
This mechanical component transmits torque between non-parallel, non-intersecting shafts.
What is a worm gear?
Yaskawa shipped its first AC drive in this decade.
What are the 1970s?
UL 50E standard is for this.
What is Enclosures for Electrical Equipment – Environmental Considerations?
This famous physicist got the direction of current flow "wrong" leading to the long-standing electron vs. conventional current debate.
Who is Benjamin Franklin?
In global standardization, ISO stands for this.
What is International Organization for Standardization?
The slow rhythmic oscillation that can occur when a motor runs near resonance is called this.
What is hunting?
Yaskawa VFDs help operate the world’s largest ski jump elevator, found in this Scandinavian country.
What is Norway?
UL 94 standard is for this.
What is Flammability of Plastic Materials?
The Bernoulli equation is derived from this fundamental physics principle.
What is conservation of energy?