Omron S8M - Page 16

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■ Parallel Connections
An S8M cannot be connected in parallel with another S8M’s output and branch outputs cannot be connected
in parallel.
• Do not connect branch outputs in parallel.
■ Backup Device Connections
Observe the following precautions when using a backup device, such as one from OMRON's S8T Series.
• If a backup device is connected to an S8M branch output, the backup current will be supplied to other
branches through internal circuits and internal parts may also be deteriorated or damaged. When using a
backup device with the S8M, connect the backup device to the power input side.
• When connecting a backup device to the S8M input side, the backup time will be shorter than normal due to
internal power consumption. Always confirm the backup time when using a backup device.
■ Terminal Block Plating
The tripping alarm output, alarm output, over-temperature output, and external tripping input terminals, as well
as the connecting sections of the communications terminals, are gold-plated. If connection failures occur, we
recommend making connections with the wires made from the same material.
+
−
S8M
S8M
+
+
−
−
AC/DC
power supply
Incorrect
Incorrect
+
−
+
−
+
−
S8M
AC/DC
power supply