Gear Motor XH GM-370/Metal Gear Motor with 48 CPR Encoder and Two-channel Hall Effect Encoder

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Basic Info

Payment Type:	100% T/T or 30% T/T and 70% L/C

Product Description

Using the encoder:

Two-channel hall effect encoder is used to sense the rotation of a magnetic disk on a rear protrusion of the motor shaft
Quadrature encoder provides a resolution of 48 counts per revolution of the motor shaft
To compute the counts per revolution of the gearbox output, multiply the gear ratio by 48 Motor/encoder has six color-coded, 11-inch (28cm) leads

Color functions:

Black: motor power
Red: motor power
Blue: hall sensor Vcc (3.5 to 20V)
Green: hall sensor GND
Yellow: hall sensor A output
White: ball sensor B output

Leads have stripped, unterminated ends that can be soldered or crimped to make solder free connectors

Hall sensor requires an input voltage, Vcc, between 3.5 and 20V and draws a maximum of 10mA

A and B outputs are square waves from 0 V to Vcc approximately 90° out of phase

Frequency of the transitions tells you the speed of the motor, and the order of the transitions tells you the direction

Following oscilloscope capture shows the A and B (yellow and white) encoder outputs using a motor voltage of 6 V and a Hall sensor Vcc of 5V

Encoder A and B outputs for 25D mm HP metal geared motor with 48CPR encoder (motor running at 6V

By counting both the rising and falling edges of both the A and B outputs, it is possible to get 48 counts per revolution of the motor shaft

Using just a single edge of one channel results in 12 counts per revolution of the motor shaft, so the frequency of the A output in the above oscilloscope capture is 12 times the motor rotation frequency

Two-channel hall effect encoder is used to sense the rotation of a magnetic disk on a rear protrusion of the motor shaft

Quadrature encoder provides a resolution of 48 counts per revolution of the motor shaft

To compute the counts per revolution of the gearbox output, multiply the gear ratio by 48 Motor/encoder has six color-coded, 11-inch (28cm) leads

Black: motor power

Red: motor power

Blue: hall sensor Vcc (3.5 to 20V)

Green: hall sensor GND

Yellow: hall sensor A output

White: ball sensor B output

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