3-43
Section 3 Specications
(2) Functions
1) Status indication LED
PWR (red) Status
ON (red) Power is being supplied normally.
OFF
Unit with power supply: The power supply of the main unit is OFF or the expansion cable is disconnected.
Unit without power supply: The power supply is OFF.
* The left gure shows the status indication LED
of the expansion unit with 24 points.
Input status indication (red)
Output status indication (red)
3) I/O terminal block
* The tightening torque: 0.59 to 0.78N·m.
* For the details of the signal assignment and wiring method, see to “3-10 Terminal Arrangement.”
* The terminal blocks of expansion units are not detachable.
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