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ID : 1433

Part Functions and Board Settings

I/O Power Supply Settings

Either an external power supply or the internal power supply can be set as the parallel I/O board's I/O power supply (+24V DC). An external power supply is the factory default setting.

I/O Power Supply Setting Method

I/O power supply settings P1 and JP2 settings Setting method
External power supply

JP1, JP2

(Open)

 Use the board under the factory default settings (both JP1 and JP2 are open).
Internal power supply

JP1, JP2

(Short-circuit)

 Short-circuit pin 1 to 2 on each of JP1 and JP2 using a short socket.

(Note) Check that the controller's power is turned OFF before setting.

Connecting Internal Power Supply Cables When Mounting add-on Parallel I/O Boards

Disconnect the I/O power switching harness from CN2 on the parallel I/O board and connect it to 24 V connector on the controller's printed circuit board.

Fuses

The specifications of fuses F1 to F6 are listed below.

Name Capacity Type (Manufacturer) Function Cause of fuse disconnection
F1 1.3A LM13 (Daito Communication Apparatus)

For internal power supply

Output port or power supply short circuit, etc. when the internal power supply is used.
F2 1.3A LM13 (Daito Communication Apparatus)
F3 4A LM40 (Daito Communication Apparatus) For 24V power supply Application of excess power, reverse connection of power supply, output port short circuit, etc.
F4 1.3A LM13 (Daito Communication Apparatus) For signal output (I/O ports 3840 to 3855)

Output port short circuit (I/O port 3840 – 3855)

IC1 or IC2 transistor short-circuit failure, etc.

F5 1.3A LM13 (Daito Communication Apparatus) For signal output (I/O ports 3856 to 3871)

Output port short circuit (I/O port 3856 – 3871)

IC3 or IC4 transistor short-circuit failure, etc.

F6 1.3A LM13 (Daito Communication Apparatus) For signal output (I/O ports 3872 to 3887)

Output port short-circuit (I/O port 3872 – 3887)

IC5 or IC6 transistor short-circuit failure, etc.

ID : 1433

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