Frequenlty Asked Question
- Use a multimeter to measure the actual battery voltage and compare it with the battery voltage displayed on the BTS to check if the sampling values are consistent.
- If the sampling values and actual values are not equal, use the method of "exchanging sampling lines with adjacent channels" to determine if the issue is with the DC board or the wiring. If it’s a wiring issue, check if the voltage sampling lines are misconnected, disconnected, or poorly connected.
- If the sampling values and actual values are equal, check if the steps set in the upper computer are reasonable and whether the overvoltage occurs right at the start of the step or at a certain point during the step.
- Inspect the corresponding battery for obvious bulging, damage, or other abnormalities. If any issues are found, take necessary safety measures.
- If the battery and voltage sampling lines are all normal, confirm the issue is with the DC board and replace it.
- Use a multimeter to measure the actual battery voltage and compare it with the battery voltage displayed on the BTS to check if the sampling values are consistent.
- If the sampling values and actual values are not equal, use the method of "exchanging sampling lines with adjacent channels" to determine if the issue is with the DC board or the wiring. If it’s a wiring issue, check if the voltage sampling lines are misconnected, disconnected, or poorly connected.
- If the sampling values and actual values are equal, check if the steps set in the upper computer are reasonable and whether the undervoltage occurs right at the start of the step or at a certain point during the step.
- Inspect the corresponding battery for obvious bulging, damage, or other abnormalities. If any issues are found, take necessary safety measures.
- If the battery and voltage sampling lines are all normal, confirm the issue is with the DC board and replace it.
- Check if the module and the intermediate machine are in a normal power-on state.
- Check if the CAN connection between the module and the intermediate machine is normal.
- Check if the CANA dial code is correct.
- Measure if the matching resistance between CAN H and CAN L on the CANA bus is 60±5 ohms. If not, adjust the matching resistance on the signal adapter board.
- If the bus voltage is normal, check the BTS fault record to identify which sub-channel triggered the fault. Use debugging software tools to check if the bus voltage displayed by the channel is normal. If abnormal, it can be determined that the DC board’s bus sampling is faulty, and the board should be replaced.
- If all the above points are normal, connect the CAN box and check the captured messages to determine whether the intermediate machine or the lower machine is abnormal.
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