DP2122
Speed monitor
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3 Intended use
The unit is a pulse evaluation system. It monitors rotating, linear, vibrating or oscillating movements.
It receives the pulses from external sensors, measures the pulse interval and calculates the input
frequency. This value is compared with the set switch points; the outputs are switched in accordance
with the set parameters.
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Fig. 1: Example: speed monitoring of a drive shaft on a conveyor belt
1:
Conveyor belt
2:
Pulse pick-up on the drive shaft
3:
DP2122
4:
Transistor output (e.g. to control a light indicator, horn or
relay)
5:
Transistor output / IO-Link
6:
Signals depending on the selected switching function
The unit is not suited for environments with particular requirements on mechanical stability (e.g.
shock/vibration).
The unit is intended for indoor use only.
u
Observe the operating conditions (
Ò
).