How about daily maintenance of inverters?

a Check the operation panel for any abnormity in its appearance, indicators and display.

b Check of each power supply: if the three-phase voltage is at balance status and each phase of voltage value is within normal range.

c Check of circuits: if each wire is heating, deformed or loosed

d Check cooling fans to see if their revolution and sound is at normal status; clear heat dispassion

Distinction among ET, 2S and 2T of inverter model?

2a Check the operation panel for any abnormity in its appearance, indicators and display.

How about categories of SUNFAN inverters, including which models?

3a Check the operation panel for any abnormity in its appearance, indicators and display.

How to choose corresponding inverter according to motor's rated voltage?

4a Check the operation panel for any abnormity in its appearance, indicators and display.

How about the maximum output frequency of each series of SUNFUN inverters?

5a Check the operation panel for any abnormity in its appearance, indicators and display.

P.OFF is always displayed once the inverter is powered on?

6a Check the operation panel for any abnormity in its appearance, indicators and display.

The inverter cannot start normally when powered on?

7a Check the operation panel for any abnormity in its appearance, indicators and display.

The inverter has started but there is not frequency output?

8a Check the operation panel for any abnormity in its appearance, indicators and display.

The motor vibrates when running at certain section of frequency?

9a Check the operation panel for any abnormity in its appearance, indicators and display.

Precautions for vector control?

10a Check the operation panel for any abnormity in its appearance, indicators and display.

The inverter cannot start normally when powered on?

11a Check the operation panel for any abnormity in its appearance, indicators and display.

The inverter has started but there is not frequency output?

12a Check the operation panel for any abnormity in its appearance, indicators and display.