FOXBORO module P0917XV wiring terminal board actual goods

Description

To determine the quality of an input circuit such as a button, limit, or line, you can press the button (or other input contacts) while the PLC is powered on (preferably in a non operating state to prevent device misoperation). At this time, the corresponding PLC input point terminal and common terminal are shorted, and the corresponding PLC input indicator light of the button is on, indicating that the button and line are normal. If the light is not on, it may be twisted, the circuit may have poor contact, or the wire may be broken. If further judgment shows that the button is good, then use a multimeter probe to connect one end to the common end of the PLC input terminal and the other end to the corresponding PLC input point (be careful not to touch the 22 0V or 110V input terminal in the above operation). At this point, the indicator light is on, indicating a fault in the circuit. The indicator light is not on, indicating that the PLC input point has been damaged (this situation is rare and usually caused by strong electrical intrusion).

For PLC output points (only relay output type mentioned here), if the indicator light corresponding to the action object is not on, and it is confirmed that the PLC input and output logic function of the action object is not met when it is in operation, that is to say, the input circuit is faulty. As mentioned earlier, check the input circuit. If the corresponding indicator light is on, but the corresponding executing components such as solenoid valves and contactors do not operate, first check the solenoid valve control power supply and fuse. The simplest method is to use an electric pen to measure the common terminal of the corresponding PLC output point. The electric pen does not light up, which may correspond to a power failure such as a blown fuse. The electric pen is on, indicating that the power supply is good, and the corresponding solenoid valve, contactor, and circuit are faulty. After troubleshooting the solenoid valve, contactor, circuit, and other faults, if they are still abnormal, use a multimeter probe to connect one end to the corresponding output common terminal and the other end to the corresponding PLC output point. At this time, the solenoid valve and other devices still do not operate, indicating a fault in the output circuit. If the solenoid valve acts at this time, the problem lies at the PLC output point.

Due to the occasional false alarm of the electric pen, another method of analysis can be used. Use a multimeter to measure the voltage between the PLC output point and the common terminal. If the voltage is zero or close to zero, it indicates that the PLC output point is normal and the fault point is on the periphery. If the voltage is high, it indicates that the contact resistance of this contact is too high and has been damaged. In addition, when the indicator light is not on, but the corresponding solenoid valve, contactor, etc. act, this may cause the output point to burn out due to overload or short circuit. At this point, the external wiring of this output point should be removed, and the resistance between the output point and the common terminal should be measured using a multimeter resistance range. If the resistance is small, it indicates that the contact is broken. If the resistance is infinite, it indicates that the contact is good and the corresponding output indicator light is broken.

Recommendation:
3500/60-01-00
3500/22-01-01-00
3500/20-01-02-00
3500/42M-01-00
3500/61
3500/44M
3500/60
3500/64M
3500/72M
3500/77M
3500/94
3500/95
3500/42-01-00
3500/15-02-02-00
3500/22-01-02-00
1900/65/A0000010000
1900/65/A-00-00-01-00-00
1900/65/A0000010100
1900/65/A0000010101
3500/60133811-01D
1900/65/A0000010200
1900/65/A0008000200