SM-P00077-A/3
2. INSTALLATION
47
2020-04-15
2.5.6
D-sub connector (T30)
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Connector for T30
The connector used for wiring method T30, generally called D-sub connector, is used widely for FA and
OA devices. The 25-pin D-sub connector is specified in the RS-232C standard and is especially used for
communication between computers and peripheral devices.
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Precautions on wiring the D-sub connector (T30)
• Signal arrays of the PLC output unit must match signal arrays on the valve side.
• Only 24 VDC or 12 VDC power can be used.
• Maximum number of solenoids is 24. Wiring exceeding the maximum number is unavailable.
• Manifold stations are numbered in order from left to right with the piping port towards the user (refer to
the figure below).
• Voltage drop occurs when energizing solenoids at the same time or depending on the cable length.
Make sure that the voltage drop on the solenoid does not exceed 10% of the rated voltage.
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Internal wiring
Manifold
station no.
1st
station
2nd
station
3rd
station
nth station
