Multichannel Speed sensors

The impulse sensors dispose of a multichannel electronic and an LED.
Each channel is separate and works independently.
The LED always has the same logic state as the output of the first channel.
The rotation speed signal outputs have rectangular form the frequency of which is proportional to the rotation and linear speed.

Double channel sensor with voltage output

This type of sensor has two independent output signals which can be operated with isolated or identical supply voltage.
The outputs supply two signals in rectangular form. Their phases are shifted and their frequencies can alter depending on the rotation speed.
The supply voltages are between 8V and 15V.
The amplitudes of the output signals are identical to the supply voltages less 1.5 for high level and <=1V for low level.

Double channel sensor with voltage output and direction signal

This type of sensor has two independent output signals which can be operated with isolated or identical supply voltage.
The outputs supply two signals in rectangular form. Their phases are shifted and their frequencies can alter depending on the rotation speed.
Furthermore, it contains an additional, extended evaluation circuit which enables the detection of the rotational direction and the transmission of this information in digital form via an additional output.
This signal refers to the same potential as the first speed signal output. It is thus isolated from the second speed signal output. The direction signal shows the direction of the phonic wheel passing the sensor head and has the same amplitude as the speed signal output.
The supply voltage is between 8V and 15V.
The amplitude of the out put signals is identical to the supply voltage less1.5V for high level and <=1V for low level.

Double channel sensor with voltage output and middle voltage

This type of sensor has two independent output signals which can be operated with isolated or identical supply voltage.
The outputs supply two signals in rectangular form. Their phases are shifted and their frequencies can alter depending on the rotation speed.
If the phonic wheel mounted opposite the sensor stops (f < 4Hz), the output signal does not remain on the last voltage level, but returns to the approximate medium supply voltage after a short time. Some controls use this behaviour for diagnostic purposes.

The supply voltage is between 10V and 28V.
The amplitudes of the output signals are identical to the supply voltage less 2.0V in case of high level and <=2V in case of low level.

Double channel sensor with current output

The speed sensor with a current loop interface supplies 14mA for high level and 7mA for low level.
The low level of 7mA can be monitored to check the speed sensor at standstill as well as its connection to the peripheral devices.

The supply voltage is between 12V and 16V.

Four channel sensor with current output

This speed sensor with a current loop interface supplies 14mA for high level and 7mA for low level.
The low level of 7mA can be monitored to check the speed sensor at standstill as well as its connection to the peripheral devices.
The speed sensor has four independent channels. Each of them has the exact characteristics of a single channel sensor.
The distinctive feature of this sensor is the extended area of application which can be served with only one sensor.
As an example, the speed signals for wheel-slide and wheel-skid protection, traction control, odometer and door control can be generated independently.
The supply voltage is between 12V and 16V.
As an option, this type of sensor can also be delivered with 4 voltage outputs instead of current outputs.