EX500 Serial System | EX## - OME0008 |
11. Trouble shooting
・Whole system
NO. | Item | Remedies |
1 | The solenoid valve does not work. | ・Check the power supply for the solenoid valve is supplying |
|
| 24VDC. ( Refer to section 9 |
|
| ・Check the Branch Cable with M12 Connector is properly |
|
| connected with the SI Unit. ( Refer to section 8 |
|
| ・Check the Power LED and the Communication LED of |
|
| the SI Unit light up. ( Refer to section 8 |
2 | The solenoid valve does not work | ・Check the wiring specification of Manifold Block Ass'y. |
| as in the program. | ( Refer to section 8 |
3 | The Power LED of the Input Unit | ・There is possibility that the input sensor has a |
| is flashing. | Check that the sensor is not bad. |
|
| ・Check the power supply for a possibility that the current in |
|
| power supply line is above the specification. |
4 | Connecting sensor does not start | ・Check the power supply to make sure that 24VDC is |
| signal. | supplied. ( Refer to section 9 |
|
| ・Check whether or not the Indicator LED of each block |
|
| lights up. ( Refer to section 7 |
5 | COM A - D does not light. | ・Check whether or not the Input Unit is connected with the |
|
| branch of the COM port which does not light up. |
|
| Check the Branch Cable with M12 Connector is properly |
|
| connected with the Input Unit. ( Refer to section 7 |
|
| ・Check that a Terminal Plug is connected with port C1 or C0 |
|
| if Input Unit Manifold, is not connected. |
|
| ( Refer to section 9 |
・Remote I/O communication |
| |
NO. | Item | Remedies |
1 | RUN LED lights off. | ・Check the power supply is supplying 24VDC. |
|
| ( Refer to section 9 |
2 | COM LED lights off. | ・Check the signal line from PLC is properly connected. |
| ERR LED lights. | ( Refer to section 4 |
|
| ・Check wiring and pin out. ( Refer to section 3 |
|
| ・Check the RACK Address is correctly set. |
|
| ( Refer to section 4 |
|
| ・Check Starting Quarter is correctly set. |
|
| ( Refer to section 4 |
|
| ・Check Data Rate is correctly set. |
|
| ( Refer to section 4 |
|
| ・Check Last RACK is correctly set. |
|
| ( Refer to section 4 |
|
| ・Check the terminating resistance is correctly set. |
|
| ( Refer to section 4 |
3 | SOL LED lights off. | ・Check the power supply for 24VDC ( Refer to section 9 |
|
| ・Check the power supply for the solenoid valve is not less |
|
| than 20V. |
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