USER'S MANUAL, VERSION 2.0
Copyright © Convergence Systems Limited 2021, All Rights Reserved
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Example 5: GPO using Relay for Full Isolation and Low Coil Current (using +12V, 2 Watt
Internal Isolated Power Supply)
2 Watt supply at 12 Volt means output current is at most 160 mA.
The example relay below is a 12 Volt relay with 90 Ohms resistance coil, which means current
flowing through the coil is 133 mA.
Since 133 < 160, therefore this setup would work.
Inside CS463
The Relay powers up
when GPO_1 Switch
becomes Close
GPO_1(+) (Pin-4)
GPO_1(-) (Pin-14)
GND (Pin-15)
12V Relay
I < 160mA
+12V(Pin-5)
90 Ohm
Coil
Device to be
controlled