Barksdale Dynalco SST7400 Manuale di installazione e funzionamento - Pagina 12
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Signal Lost
The Signal Lost function is defined as the absolute maximum allowable period (time between
input pulses in milliseconds) before an under speed relay is tripped. Similar to the Max Wave
Duration described in the previous step, the Signal Lost setting is necessary for low speed
applications where there is a programmed under speed trip. This setting should be set longer
than the period (in milliseconds) of the under speed setpoint.
Enable
o Check this box to enable Signal Lost
o If there is no under speed setpoint, leave un-checked
Timeout
o This is the maximum time (in milliseconds) allowed before an under speed trip
is initiated.
Trip
o Select either Setpoint 1 or 2 for the SST7200
o Select either Setpoint 1, 2 ,3 or 4 for the SST7400
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