SPEED CONTROLLER SMT-D STEPS: OFF, 1, 2, 3, EC-MOTORS

The SMT-D-4P-EM control switch can be used to generate a manual 0-10 VDC signal for four ports. The signal can be used, for example, to control EC fans or adjustable dampers. The device distributes the 0-10 VDC control signal to four ports. Two of these ports (positions 1 and 2) can be adjusted using internal trimmers. Port 3 is always identical to the input voltage, typically 10 VDC. Port 0 is the OFF position (0 VDC). Thus, this device can produce the following four output voltages: 0 (OFF), 3...7 - 5...9 - 10 VDC. This product description is an automated translation of the original Finnish description.