Maintenance analysis of Holip-H series**E9011.
1、e9010
Fault phenomenon: DC bus voltage is too high or too low.
Reset method: Check whether the load at the output is normal and whether there is any load abnormality such as overcurrent and short circuit. At the same time, check whether the capacitor is damaged, whether the resistance value is normal, if abnormal, replace or repair the capacitor resistor.
2、e9011
Fault Symptom: Overcurrent or IGBT damage.
Reset method: Check whether the load at the output is normal and whether there is any load abnormality such as overcurrent and short circuit. If the output is loaded normally, check whether the IGBT is damaged, and if it is indeed damaged, it needs to be replaced.
3、e9016
Fault Symptom: Internal Ground Fault.
Reset method: check whether the grounding of the equipment is normal, if the grounding is normal, check whether the cable has poor anti-interference ability, and whether the cable needs to be replaced.
3. Other precautions.
1. Before the reset operation, you should carefully read the user manual of the equipment and have a clear understanding of the alarm.
2. Before the reset operation, check whether there are abnormal conditions around the equipment, such as machine damage, cable short circuit, etc., to ensure the safety of operation.
3. If the reset operation is invalid, you need to contact the engineer or after-sales service in time to solve the problem faster.