Huawei H20-681-ENU Actual Free Exam Questions & Community Discussion

Exam Code/Number: H20-681-ENU
Exam Name/Title: Huawei Certified Field Specialist -Smart PV Controller
Certification Provider: Huawei
Corresponding Certification: Huawei-certification

Exam Questions: 195
Updated On: Jul 08, 2026

Question #28

What are the optional functional modules of Huawei SUN2000L household inverters? (Multiple choice)

A. 4G module

B. Wifi

C. Power collector

D. Optimizer

Discussion 0

Correct Answer: A,C,D Vote an answer

Question #29

Huawei SmartLogger recommends that the number of inverters connected to each RS485 port is not greater than ().

A. 15

B. 10

C. 20

D. 30

Discussion 0

Correct Answer: D Vote an answer

Question #30

In the NetEco1000S system, the remote notification can be used to set up E-mail. When the device fails, the user can be notified by email.

A. True

B. False

Discussion 0

Correct Answer: A Vote an answer

Question #31

Huawei SUN2000 inverter power factor can be adjusted to ().

A. 0.85 advance, 0.8 lag

B. 0.8 advance, 0.85 lag

C. 0.8 advance, 0.8 lag

D. 0.85 advance, 0.85 lag

Discussion 0

Correct Answer: C Vote an answer

Question #32

Huawei SUN2000 inverter output isolation relay realizes the AC output of the inverter is isolated from the grid. When the inverter is faulty or the grid is faulty, the inverter is safely disconnected from the grid.

A. True

B. False

Discussion 0

Correct Answer: A Vote an answer

Question #33

During the upgrade of the SUN2000 inverter software, disconnecting the DC input switch of the inverter may cause the inverter to fail to upgrade. When the inverter DC switch is closed again, the "software version mismatch" alarm may occur and the grid cannot be generated. Need to be re-upgraded to resolve.

A. True

B. False

Discussion 0

Correct Answer: A Vote an answer

Question #34

When the Huawei intelligent sub-array controller SmartACU2000B is powered on, which of the description is wrong?

A. First close the three-phase power switch that is connected to the intelligent sub-array controller in the remote box.

B. After the power supply switch of the pre-stage box is closed, the input voltage of all switches in the intelligent sub-array controller must be measured with a multimeter.

C. Power-on checked before and the cabinet is reliably grounded.

D. All front-end switches and all cabinet switches in the intelligent sub-array controller are disconnected before power-on.

Discussion 0

Correct Answer: A Vote an answer

Question #35

When the alarm ID of Huawei SmartLogger is 1105 (address conflict), it should be checked (). (Multiple Choice)

A. Check if there is a conflict between the RS485 address of the SmartLogger and the logical address of the accessed southbound device.

B. Check if there is a conflict between the RS485 address of the SmartLogger and the physical address of the accessed southbound device.

C. Check if there is a conflict between the addresses of the southbound devices connected to the SmartLogger.

D. Check if there is a conflict between the IP address of the SmartLogger and other SmartLogger IP addresses.

Discussion 0

Correct Answer: A,B Vote an answer

Question #36

In the requirements for safe construction work, which of the requirements for on-site management are correct?

A. Special operators (such as climbing, welders, etc.) must hold a certificate of employment

B. Specific engineering projects must have specific safety production management regulations

C. Construction of hazardous areas should be equipped with necessary protective equipment and safe working tools

D. Safety production education for construction workers before starting work

Discussion 0

Correct Answer: C Vote an answer

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