Intelligent Inductive Rotation Sensors

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Intelligent Inductive Rotation Sensors

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Intelligent Inductive Rotation Sensors

The rotation sensors are used to control the revolutions or speed. They are particularly suitable in the case of decentralized management. Inductive rotation sensors monitor changes (decrease or increase) of revolutions relative to their reference value in a non-contact manner. An exceptional feature of the RSx series intelligent rotation sensors is the choice of reference speeds. In contrast to the usual method of adjustment using a potentiometer, these sensors are based on the principle of actual measurement of the reference speed.

Description of Operation

Sensors of rotation are intended for monitoring of revolutions or speed. They are suitable especially in case of decentralized control. Inductive rotation sensors perform contactless monitoring of changes of revolutions compared with their reference value.

A possibility to select reference revolutions is the extraordinary feature of the PSI RSx inductive rotation sensors.

Unlike the standard way of adjustment by potentiometer, adjustment of these sensors is based on principle of real measurement of reference revolutions. Increase or decrease of revolutions is signalized in regard to limit values of revolutions that are defined as a percentage of the measured reference revolutions change.

Table:

Series	RSA	RSD	RSE
Signal to measure reference revolutions	Automatically ⁽¹⁾	Manually ⁽²⁾
Memory of reference revolutions	Temporary ⁽³⁾	Permanent ⁽⁴⁾
Monitoring of decrease of revolutions	Yes (5)		Yes (6)
Monitoring of increase of revolutions	No		Yes (6)
Number of inputs	0	1
Number of outputs	2 ⁽⁷⁾

Notes:

1. Automatically after stabilization of revolutions.
2. Manually by means of sensor input.
3. Value of reference revolutions will be lost after supply disconnection of the sensor.
4. Value of reference revolutions will remain preserved even after supply disconnection of the sensor.
5. Two limit values are available.
6. One limit value is available.
7. There is one output for each limit value.

Application Examples:

Signalizing of decrease or increase of revolutions.
Delayed signalizing of revolutions decrease or increase after device activation. (It will prevent false signalizing during run-up of monitored device, until revolutions reach nominal value.)
Signalizing of wear (small revolutions decrease) in advance of signalizing of failure (substantial revolutions decrease).
Sensing of decrease of revolutions during the starting-up of the monitored device prior to the achievement of the nominal revolutions.