What to do if Huawei Inverter upgrade failed?
If your Huawei Inverter displays an upgrade failed or version mismatch error, it means the upgrade process wasn't completed correctly. Try performing the upgrade again. If it fails multiple times, contact your dealer or Huawei technical support.
Why is my Huawei SUN2000-20KTL-M5 showing an external fan abnormal error?
An external fan abnormal error on your Huawei Inverter indicates that the external fan is short-circuited, the power supply is insufficient, or the air channel is blocked. Shut down the fan, turn off the DC switch, check for damage to the fan blades, and clear any obstructions around the fan. Reinstall the fan, turn on the DC switch, and wait for the inverter to start. If the alarm persists after 15 minutes, replace the external fan.
What should I do if my Huawei Inverter reports a faulty power collector?
A faulty power collector error on your Huawei Inverter indicates that the power meter is disconnected. Check the following: 1. Ensure the configured power meter model matches the actual model. 2. Verify that the power meter's communication parameters match the inverter's RS485 configurations. 3. Confirm that the power meter is powered on and the RS485 communication cable is connected.
What does abnormal active power scheduling instruction mean on a Huawei Inverter?
If your Huawei Inverter displays an abnormal active power scheduling instruction, it means the DI input is abnormal or inconsistent with the configuration. Check whether the cables are correctly connected to the DI ports. On the DI active scheduling screen under the dry contact scheduling settings, view the DI signal configuration mapping table. Contact the power grid company to check whether the configurations in the mapping table are complete and meet the requirements.
What does abnormal reactive power scheduling instruction mean on a Huawei SUN2000-20KTL-M5 Inverter?
If your Huawei Inverter displays an abnormal reactive power scheduling instruction, it means the DI input is abnormal or inconsistent with the configuration. Check whether the cables are connected correctly to the DI ports. On the DI reactive power scheduling screen under the dry contact scheduling settings, view the DI signal configuration mapping table. Contact the power grid company to check whether the configurations in the mapping table are complete and meet the requirements.
General| Model | SUN2000-20KTL-M5 |
|---|---|
| Type | String Inverter |
| Max. DC Voltage | 1100 V |
| Start Voltage | 200 V |
| Nominal Input Voltage | 600 V |
| Max. Input Current per MPPT | 26 A |
| Number of MPPTs | 2 |
| Rated AC Power | 20000 W |
| Max. Efficiency | 98.6% |
| Weight | 25 kg |
| Operating Temperature Range | -25°C to +60°C |
| Cooling | Natural convection |
| Protection Degree | IP66 |
| AC Output Frequency | 50 Hz / 60 Hz |
| Max. DC Input Power | 30000 W |
| Max. Output Power | 22000 VA |
| Nominal Output Voltage | 230 Vac / 400 Vac |
| Rated AC Voltage | 400 V / 380 V / 220 V |
| AC Voltage Range | 320 V - 480 V |
| Dimensions (W x H x D) | 525 mm x 470 mm x 262 mm |
| Max. DC Power | 30, 000 W |
Outlines precautions for user safety during operation.
Details critical safety measures related to electrical hazards.
Guidelines for selecting the optimal installation location.
Key precautions and steps for mounting the inverter.
Critical safety warnings before making electrical connections.
Step-by-step guide for proper grounding.
Procedure for connecting DC power cables.
Steps for connecting AC and signal cables.
Installation checklist to verify readiness for operation.
Step-by-step procedure for system startup.
Procedure for safely shutting down the inverter for maintenance.
Guide to diagnosing and resolving common alarms and faults.
Detailed technical data for ZHM5 series.
Detailed technical data for M5 series.
Explains the reasons for insulation resistance faults.
Step-by-step guide for diagnosing and resolving insulation faults.
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