Hoymiles HMT-2250-6T User Manual

142
10 min value grid
overvoltage
1. If the alarm occurs accidentally, the grid voltage may be abnormal
temporarily. The microinverter can recover automatically after grid
voltage becomes normal.
2. If the alarm occurs frequently, check whether the grid voltage is
within the acceptable range. If no, contact the local power operator or
change the grid overvoltage protection limit via Hoymiles monitoring
system with the consent of the local power operator.
143 Grid undervoltage
1. If the alarm occurs accidentally, the grid voltage may be abnormal
temporarily. The microinverter can recover automatically after grid
voltage becomes normal.
2. If the alarm occurs frequently, check whether the grid voltage is
within the acceptable range. If no, contact the local power operator or
change the grid overvoltage protection limit via Hoymiles monitoring
system with the consent of the local power operator.
144 Grid overfrequency
1. If the alarm occurs accidentally, the grid frequency may be
abnormal temporarily. The microinverter can recover automatically
after grid frequency becomes normal.
2. If the alarm occurs frequently, check whether the grid frequency is
within the acceptable range. If no, contact the local power operator
or change the grid overfrequency protection limit via Hoymiles
monitoring system with the consent of the local power operator.
145 Grid underfrequency
1. If the alarm occurs accidentally, the grid frequency may be
abnormal temporarily. The microinverter can recover automatically
after grid frequency becomes normal.
2. If the alarm occurs frequently, check whether the grid frequency is
within the acceptable range. If no, contact the local power operator
or change the grid underfrequency protection limit via Hoymiles
monitoring system with the consent of the local power operator.
146
Rapid grid frequency
change rate
1. If the alarm occurs accidentally, the grid frequency may be
abnormal temporarily. The microinverter can recover automatically
after grid frequency becomes normal.
2. If the alarm occurs frequently, check whether the grid frequency
change rate is within the acceptable range. If no, contact the local
power operator or change the grid frequency change rate limit via
Hoymiles monitoring system with the consent of the local power
operator.
147 Power grid outage Please check whether there is a power grid outage.
148 Grid disconnection Please check whether the AC switch or AC wiring is normal.
149 Island detected
1. If the alarm occurs accidentally, the grid voltage may be abnormal
temporarily. The microinverter can recover automatically after grid
voltage becomes normal.
2. If the alarms occur frequently on all the microinverters in your
station, contact the local power operator to check whether there is a
grid island.
3.If the alarm still exists, contact your dealer or Hoymiles technical
support.
171
Abnormal phase
difference between
phase to phase
Please check that the wiring of each phase is completely correct. This
fault is usually caused by the wrong phase.
205
Input port 1&2
overvoltage
1.Please make sure that the PV module open-circuit voltage is less
than or equal to the maximum input voltage.
2. If the PV module open-circuit voltage is within the normal range,
contact your dealer or Hoymiles technical support.
© 2020 Hoymiles Power Electronics Inc. All rights reserved.
13
Three-phase Microinverter HMT-1800/2250 Troubleshooting

Hoymiles HMT-2250-6T Specifications

General

Model	HMT-2250-6T
Category	Inverter
Max. Output Power	2250 W
Number of MPPTs	6
Efficiency	96.5%
Peak Power Tracking Voltage Range	16-60 V
Startup Voltage	22 V
Rated Output Power	2250 W
Rated Output Current	9.78A
Nominal Output Voltage/Range	230 V
Rated Output Voltage	230 V
Output Frequency	50/60 Hz
Cooling Method	Natural Convection
Protection Level	IP67
Maximum Input Current	12A
Ambient Temperature Range	-40°C to +60°C
Operating Temperature Range	-40°C to +60°C