Error Code - 202 - Abnormal Invert Circuit - Alert Severity Major

Thomas Garcia

Modified on: Tue, 4 Dec, 2018 at 6:01 PM

Alarm ID

Alarm Name

Alarm Severity

Possible Cause

Suggestion

202

Abnormal Invert Circuit

Major

Abnormal external conditions trigger the protection for the inverter circuit inside the SUN2000. The possible causes are as follows:

Cause ID = 13

The power grid voltage drops dramatically, or the power grid is short-circuited, which damages the internal voltage detection circuit in the SUN2000.

Cause ID = 14

The power grid voltage drops dramatically, or the power grid is short-circuited. As a result, the inverter transient output current exceeds the upper threshold and therefore the inverter protection is triggered.

Cause ID = 16

The DC current in the power grid exceeds the upper threshold.

Cause ID = 20

The inverter output is short-circuited. As a result, the output current surges to a value above the upper limit, and the inverter protection is triggered.

Cause ID = 13/14/16
1. The inverter detects its external working conditions in real time. After the fault is rectified, the SUN2000 automatically recovers.
2. If the alarm persists, contact Huawei technical support.
Cause ID = 20
1. Check the inverter output cable for short-circuits.
2. If the alarm persists, contact Huawei technical support.

Related Articles