Huawei Iris Hellas SUN2000 Series - Page 100

Alarm
ID
Alarm Name Alarm
Severity
Cause Troubleshooting Suggestions
2033 Grid
Undervoltage
Major Cause ID=1
The grid voltage is below
the lower threshold or the
undervoltage duration has
exceeded the time that
triggers LVRT.
1. If the alarm occurs
occasionally, the power grid
may be abnormal
temporarily. The inverter
automatically recovers
after detecting that the
power grid becomes
normal.
2. If the alarm occurs
frequently, check whether
the power grid voltage is
within the acceptable
range. If not, contact the
local power operator. If yes,
modify the grid
undervoltage protection
threshold through the
mobile app, SmartLogger,
or network management
system (NMS) with the
consent of the local power
operator.
3. If the fault persists for a
long time, check the AC
circuit breaker and AC
output power cable.
2034 Grid
Overvoltage
Major Cause ID=1
The grid voltage is beyond
the upper threshold or the
overvoltage duration has
exceeded the time that
triggers HVRT.
1. Check whether the grid
connection voltage exceeds
the upper threshold. If yes,
contact the local power
operator.
2. If you have conrmed that
the grid-tied voltage
exceeds the upper
threshold and have
obtained the consent of the
local power operator,
modify the overvoltage
protection threshold
through the mobile app,
SmartLogger, or NMS.
3. Check whether the peak
grid voltage exceeds the
upper threshold.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1
User Manual
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