EC Motors: Interface Versions

There are several versions of interface to EC motor available:

EC with Hall sensors
Driver circuitry external

8 Wires connection

3 Phases for power
3 Hall sensor signals
VCC for Hall sensors
GND for Hall sensors

EC sensorless
Driver circuitry external

3 Wires connection

3 Phases for power

Typically used for Fans/Blowers

EC with Hall or sensorless
Driver circuitry integrated

3 Wires connection

Signal for speed and direction
(analog voltage or current or bus signal)
VCC for Driver and Hall sensors
GND for Driver and Hall sensors

For applications with fixed speed and direction, 2 wire connection only possible (VCC and GND).

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