125
2121331-04-04/19 (Translation of the original operating instructions)
Operating Instructions
Modular Safety Control System MSC
EN
9.3.4. Speed/standstill monitoring (STAND STILL AND SPEED CONTROL)
The speed/standstill monitoring function block checks the speed of a device; the ZERO output is "1" if the speed is 0. In
addition, the OVER output is "0" (FALSE) if the speed measured exceeds a previously defined limit.
Figure 136: Speed/standstill monitoring
Parameter
Axis type: Defines the type of axis that is monitored by the device. "Linear" if the movement is linear or "Rotational" if the
movement is rotary.
Sensor Type: If "Linear" is selected for the previous parameter, the sensor type connected to the inputs of the module is
defined here. This can be "Rotational" (e.g. encoder on a toothed rack) or "Linear" (e.g. optical linear sensor). This selection
defines the other parameters.
Measuring device: Defines the type of measuring device/sensors used. The following can be selected:
Ì Encoder
Ì Proximity
Ì Encoder + proximity
Ì Proximity 1 + Proximity 2
Ì Encoder 1 + Encoder 2
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