Powder Disperser

The control unit works according to the phase angle principle, the adjustment of the delivery rate is achieved by setting the magnet voltage via the setpoint potentiometer built into the housing cover. The control curve of the setpoint voltage can be limited by two trim potentiometers Umin and Umax on the board so that always the entire range of the setpoint can be utilized.
The firing pulses can be infinitely shifted in the range of the positive or negative mains voltage half-wave by the setpoint voltage which can be set with the desired value, as a result of which the voltage-time surface of the output voltage is set. For feeder units with 6000S / min oscillation frequency, both (positive and negative) mains voltage half-cycles are controlled, with feeder units with 3000S / min oscillation frequency only one mains voltage half-wave is controlled. Switching between full-wave and half-wave operation is standard with a slide switch on the board (see connection options).
After switching on the operating voltage, the integrated, adjustable soft start is started and guarantees a smooth start-up of the output voltage up to the set voltage value. Possible inrush peaks are thus eliminated. Furthermore, both the soft start, as well as the soft stop when switching on or when switching off the output voltage via the control input effectively and serves to boost the delivery time. so that ordered bulk material does not change its position again. Both times are separately adjustable.
The control input enables the device to be switched on or off by another system (PLC, initiator, sensors, etc.). The control unit provides its own supply voltage of +24 V DC. Switching on or off via an external voltage of + 24 V DC is also possible. The input acts internally on the ignition pulses.

