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SENSO
RS AN
D INS
TRUME
N
TATIO
N F
OR MAC
HINE
CON
DITION M
ONIT
ORIN
G
Indicating a High Level of Vibration in a Motor
Figures 8 and 9
– Indicating a High Level of Vibration in a Motor
Pushing the Start pushbutton closes the M contacts and starts the motor. If the start-up delay option for the
switch is enabled, the Smart Switch will not trip regardless of the vibration level during the specified delay time.
After this delay, the vibration switch will be activated. If the vibration level exceeds the alarm threshold for a time
period greater than the specified operational delay time, the relay will trip. This action will close the contact to the
pilot lamp.
Since the NL (non-latching) option is specified, the pilot lamp will illuminate only while alarm threshold is
exceeded. Should the vibration level drop below the alarm threshold value (based also on the specified
hysteresis), the pilot lamp will turn off.
