Mitsubishi MELSEC-A Series and MELSECNET/MINI-S3 Data Link System PDF Installation and Maintenance Manual

Use within operating ambient temperature.Do not use where temper-atures can rapidly change even though it is within the specifications.Foreign objects should be prevented from entering the product.Contamination by foreign objects,such as wire chips will cause fire,breakage,and malfunction.Use within the operating environment of the protection structure.Avoid using IP20 where water or oil,etc.can be splashed.IP65 isachieved by mounting on manifold solenoid valve and process wireentry correctly.Carry out regular checks to confirm correct operation.Safety may notbe maintained by unintentional malfunction or incorrect operation.

This SI unit is able to connect to Mitsubishi Electric Corp.PLC,MELSEC-A series,MELSECNET/MINI-S3 Data Link system.This SI unit has 16 output points (2 stations).Maximum is 512 I/Opoints (64 stations) per PLC master unit.

Power of the product and all other equipment should be turned offwhile wiring.Tighten the wiring with terminal screw completely.The terminal screwfor connection is M3.Use appropriate crimp-style terminal for the terminal screw.Short circuit,fire,and malfunction will be caused if terminal screw is not tightened enough.Avoid incorrect wiring. It may damage the product and/or other equipment.Ensure that the FG terminal is correctly earthed.Power with correct capacity should be prepared by considering the in-rush current when starting.Influence of noise should be avoided for the wiring.Wiring should beseparated from power cables and high voltage cables.Wiring of the signal cablesWiring of twisted pair cable should follow the drawing shown in Fig1.Shielding of shield cable should be one point grounding at receiving side,or sending side.Use cable recommended by MitsubishiElectric Corporation.

Address setting

Power should be turned off to set address.Open the SI unit cover,adjust by turning the address setting switch using a small bladed screwdriver. Setting range is 1~64.As the SI unit has 2 occupied stations,the setting will be 1,3,5…63.The address can be set regardless of the connecting order,however it is not possible to setwith vacant positions.It is not possible to set address overlap.

Non standard wiring (mixed wiring)Mixed wiring is available as a non-standard option.If mixed wiring isspecified,the positions of the single and double solenoids on the manifold must be indicated when ordering.

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January 6, 2010 | Posted in Electronic Manual, Mitsubishi Manual, Phone/Fax Machine

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