Rockwell Automation 937CU-DIFRQ_1 Universal Frequency Converter Installation Instructions - Manual (Page 18)

Bul. 937
C Universal Frequency Converter Installation Instructions
•For lead break monitoring, an appropriate parallel resistor must be present in the sensor or externally. For
short-circuit monitoring, an appropriate series resistor must be present in the sensor or externally
(See
Display Modes and operation). No lead break monitoring is possible for NPN sensors and push-
pull
output stages. If you are using a sensor of this type, you should always select OFF for LB.
•In the case of strongly varying measurement values, you can use smoothing to influence how quickly an
output will reaction to a change in input:
0 sec = no smoothing, 255 sec = maximum smoothing.
•A bounce filter may be necessary when mechanical contacts are used. You can use the bounce filter of the
universal frequency converter if the frequencies to be processed are always lower than 10 Hz.
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