¶ Where to test
Open the Troubleshooting form, and then select the Extension Test.
In the test form, you can choose to turn on M7 or M8 separately, and you can only turn off M7 and M8 at the same time.
¶ Normal results
For NEJE Max series devices, M7 and M8 have output indicators. After turning on the corresponding port, the corresponding red output indicator should light up, and after turning off the corresponding port, the red output indicator should turn off.
After turning on the corresponding port, the output connector should output DC voltage, and the device you connected should start working.
Please be careful not to overload, the output current is limited to 1A.
¶ Troubleshooting
¶ No-load test
Please perform a no-load test first, remove the device connected to the M7 M8 interface first, and check whether the red output indicator is consistent with expectations by turning on and off M7 M8 multiple times.
If the red output indicator is still off after opening the M7 or M8 port, your control board may be damaged.
If the red output indicator is on after closing the M7 or M8 port, your control board may be damaged.
¶ Test with load
Connect your M7 M8 device to the M7 M8 output connector of the control board.
Your device may be a relay, solenoid valve, etc.
Please note: the output current limit is 1A, overcurrent or short circuit may damage your control board.
Then control the M7 M8 on and off in the software to see if your device works as expected.
For relays and solenoid valves, you will hear a slight ticking sound when opening and closing.
When testing with load, the output indicator of the corresponding port should also be the same as when it is unloaded. If it is different, your M7 M8 may have a short circuit or overcurrent.
¶ M7 M8 device overcurrent
If you pass the no-load test but fail the load test, and the red indicator light goes out or dims when you turn on the output, it means that the M7 M8 device you are connected to has overcurrent. You need to carefully check whether your device has a short circuit.
The maximum current that the NEJE control board can provide is 1A. Overcurrent and short circuit may damage your control board.
¶ Contact us
Are you having problems? Please Contact us
We need the following information:
- Whether your output indicator can be turned on and off normally under no-load state
- Whether your device can work normally under load and whether the indicator light can indicate the output normally.