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SKF Encoder, AC Motor Speed Sensor

Model: BMO-6204/048S2/UA008A, compatible with BMB-6204/048S2/UA002A, BMO-6204/048S2/UA108A, BMB-6204/048S2/UA008A, BMB-6204/048S2/EA002A & BMB-6204/048S2/EA008A

SKF motor encoder model BMO-6204/048S2/UA008A uses a compact and robust sensor that produces an incremental encoder signal. The sensor is accurate down to zero r/min. An integrated active circuit (requiring an external voltage supply) in the sensor body contains two Hall effect cells that produce an output signal consisting of two square waves.

The signals can be interpreted by motor controllers in different ways:

• The direction of rotation can be determined from the phase shift, when the rising edge of a signal first appears.
• Slow speeds can be determined by measuring the time between two electrical events, events being the rising and falling edge on either square wave.
• High speeds can be measured by counting the number of electrical events within a given time period.

The two square waves are 90° out of phase with each other. This phase shift changes sign with the direction of rotation. The presence of two signals in quadrature enables a processing unit to multiply the number of angular position increments per revolution. For example, using a standard SKF sensor bearing with 64 pulses per revolution and a standard electronic interface that can detect the rising (Low/High) and falling (High/Low) times of each of the two signals, it is possible to obtain 256 electrical events per revolution, which translates to an angular resolution of 1,4°.

SKF motor encoder units provide accurate and reliable signals for effective motor control and are 100% tested for period accuracy, duty cycle and phase shift during manufacture.

The SKF Motor Encoder Unit is a compact, integrated unit consisting of:

• A pre-lubricated SKF Explorer deep groove ball bearing in the 62 series with a snap ring groove in the outer ring and an RS1 contact seal
• An impulse ring
• A sensor body
• A cable outlet and connecting cable

Cable connection:

SKF BMO-6204/048S2/UA008A motor encoder units are available as standard with a free cable end (designation suffix 008A). The standard cable length is about 370 mm.

We supply also the SKF 6204 encoder with an AMP 4-Pin connector BMO-6204/048S2/UA108A.

For alternative connectors or cable lengths, please contact us.

SKF motor encoder model BMO-6204/048S2/UA008A uses a compact and robust sensor that produces an incremental encoder signal. The sensor is accurate down to zero r/min. An integrated active circuit (requiring an external voltage supply) in the sensor body contains two Hall effect cells that produce an output signal consisting of two square waves.

With a free cable end, SKF Motor Encoder Unit BMO-6204/048S2/UA008A is compatible with BMB-6204/048S2/UA002A, BMO-6204/048S2/UA108A, BMB-6204/048S2/UA008A, BMB-6204/048S2/EA002A & BMB-6204/048S2/EA008A.

The signals can be interpreted by motor controllers in different ways:

• The direction of rotation can be determined from the phase shift, when the rising edge of a signal first appears.
• Slow speeds can be determined by measuring the time between two electrical events, events being the rising and falling edge on either square wave.
• High speeds can be measured by counting the number of electrical events within a given time period.

The two square waves are 90° out of phase with each other. This phase shift changes sign with the direction of rotation. The presence of two signals in quadrature enables a processing unit to multiply the number of angular position increments per revolution. For example, using a standard SKF sensor bearing with 64 pulses per revolution and a standard electronic interface that can detect the rising (Low/High) and falling (High/Low) times of each of the two signals, it is possible to obtain 256 electrical events per revolution, which translates to an angular resolution of 1,4°.

SKF motor encoder units provide accurate and reliable signals for effective motor control and are 100% tested for period accuracy, duty cycle and phase shift during manufacture.

The SKF Motor Encoder Unit is a compact, integrated unit consisting of:

• A pre-lubricated SKF Explorer deep groove ball bearing in the 62 series with a snap ring groove in the outer ring and an RS1 contact seal
• An impulse ring
• A sensor body
• A cable outlet and connecting cable

Cable connection:

SKF BMO-6204/048S2/UA008A motor encoder units are available as standard with a free cable end (designation suffix 008A). The standard cable length is about 370 mm.

We supply also the SKF 6204 encoder with an AMP 4-Pin connector BMO-6204/048S2/UA108A.

For alternative connectors or cable lengths, please contact us.