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15
Connecting Alarm Device
Alarm terminals are used to connect the alarm (relay)
devices such as sensors, door switches, etc.
Connect the alarm (relay) device to the alarm (relay) output
terminal. Alarm signal outputs at an event occurrence.
Alarm (Relay)
Device
Contact Ratings
Maximum load current is
±10 mA.
Do not connect any
system or device that has
over 0 Vp-p (DC 0 V)
bias voltage on the
contact terminal.
•
•
ALARM
COM
Equivalent
Diagram
Note:
Use a relay unit if the voltage or current of the
connected device exceeds the ratings.
Connections
Summary of Contents for LS921
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