Constant Siren Alarming In The Event Of High Vibration Levels - PCB Piezotronics IMI SENSORS 686 Series Installation And Operating Manual

Constant Siren Alarming in the Event of High Vibration Levels

Figure 12 – Constant Siren Alarming in the Event of High Vibration Levels
The Smart Switch is hooked up for automatic constant siren alarming when the alarm threshold level is exceeded.
Pushing the Start pushbutton closes the M contact and starts the motor. If the start-up delay option for the
switches is enabled, the Smart Switches will not trip during the specified startup delay time, regardless of the
vibration level. After this delay, the switch relay will be activated if the vibration level exceeds the alarm threshold
for a period greater than the specified operational delay time. This action will close the contact to the alarm siren
and activate it.
Since the LA (latching) option is specified, the alarm siren will be constantly energized after this high vibration
event, even if the vibration level should drop below the alarm threshold. The Reset pushbutton should be
engaged to de-energize the alarm siren and return the system to its original monitoring condition.
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