... f controlSensor-less vector control without PG 1Sensor-less vector control without PG 2Close-loop vector control with PG ... selectable, hopping frequency function, frequency binding function, free switch between four-segment acceleration/deceleration time, motor ... and Abnormality HandlingEnvironmentPlace of operationIndoors, no direct sunlight, free from dust, corrosive gases, flammable gases, oil mist ...