Robuschi SENTINEL - Prealarm Relay Connection

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4.2.4 Prealarm connection
Connect RL2 switch in series with the alarm light LA and the alarm siren SA of the electric motor starting
panel.
NOTE : Use the NA connection.
WARNING : : The protection of the blower is granted only if the SENTINEL Prealarm switch RL2
is connected to the starting panel like indicated in Fig. 8.
NOTE : Shield the SENTINEL Prealarm connection cables and do not lay out the cables near
the power cables
STARTING PANEL SENTINEL
Ancillary system Junction box
1 1
SA
LA
2 2
1 Ancillary line RL2 Prealarm connector
2 Ancillary line NC Normally Closed Contact
SA Alarm siren CC Comune Contact
LA Alarm light NA Normally Open Contact
Fig. 8