5 Connections
5.1 SmartRelay (SREL)
Power supply
unit
Battery
Relay
NAME
SYMBOL DESCRIPTION
Power supply unit +
Either positive terminal when connected to a
direct current (5 to 24 VDC) or one of the
two alternative current connections (12
V AC)
Power supply unit -
Either minus terminal when connected to a
direct current (5 to 24 VDC) or the second
alternative current connections (12 V AC)
Battery
Connector for a battery when operated
without a power supply unit; order code for
battery, including SREL.BAT connector
Relay NC
Normally closed contact in the relay
changeover contact. This contact is closed
against Relay COM when not connected
Relay COM
Common contact in the relay changeover
contact. This contact is wired either against
an NC relay (break contact) or against a NO
relay (closing contact)
SREL1+2
(Manual)
5. Connections
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