This refers to a type of variable frequency drive (VFD) that is adjusted and controlled primarily through manual interfaces rather than relying solely on automated systems. These units, identified by a numeric value such as “70,” typically denote a specific horsepower or current rating within a product family. For instance, in industrial settings, it allows operators to directly modify motor speed and torque via physical controls on the device.
The significance of such a system lies in its direct control capability, offering immediate adjustments and override functionality in critical situations. Its historical relevance stems from earlier generations of motor control technology, where digital interfaces were less prevalent. It provides a tangible interface, appreciated in environments where immediate response and operator familiarity are paramount. The availability of localized control, independent from networked systems, strengthens operational resilience.
