Description

With the MSF-Technik Motor Soft Start Unit a bi-directional power semi-conductor is integrated into two of the three phases. By the time-dependent control of the ignition angle is achieved only a small current flows into the phases, which progressively increases until the maximum current flow angle is effective. The rate of current rise (acceleration time) and the initial torque (boost) of the motor can be set separately. The setting-potentiometers are accessible by removing the front cover. If, after the set-up time the maximum angle of current flow is effective the power semiconductors are bypassed by integrated relay-contacts so that the start-up electronic is no longer engaged.

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