INGENIA Nix series, Product Manual

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Nix Product Manual | Wiring and Connections
INGENIA | 01/22/2019 69
7.4 Feedback connections
The Nix Servo Drive has a feedback connector and an absolute encoder connector dedicated to the following
feedback options:
• Digital Halls
• Analog Halls
• Quad. Incremental encoder
• Analog encoder (Sin-Cos encoder)
• Absolute encoder
Additional feedback connections can be found on I/O connector :
• PWM encoder
• Analog input for potentiometer
• Analog input for DC tachometer
Nix also provides a 5V, 200 mA outputs for feedbacks supply. This output is overload and short circuit protected.
7.4.1 Digital Halls interface
The Hall sensors are Hall effect devices that are built into the motor to detect the position of the rotor magnetic
field. Usually, motors include 3 hall sensors, spaced 120º apart. Using these 3 signals, the drive is capable to detect
the position, direction and velocity of the rotor. Next figures show examples of digital halls signals.
Digital halls signals example
Digital halls can be used for commutation, position and velocity control. Resolution using these sensors is much
lower than using encoders.
Nix can use single ended Hall sensors to drive the motor with trapezoidal
commutation, but not with sinusoidal commutation.