Huawei SUN2000-12KTL User Manual (English)

Other manuals for Huawei SUN2000-12KTL

User Manual136 pages

Quick Installation Guide12 pages

Questions and Answers:

C
chullSep 4, 2025
How to fix DC Over Voltage on Huawei SUN2000-12KTL Inverter?
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  Robert FranklinSep 4, 2025
  If your Huawei Inverter SUN2000 is showing a DC Over Voltage alarm, it means the voltage from your PV modules is too high. To fix this, you need to reduce the number of PV modules connected in series for each PV string (1 and 2, 3 and 4, or 5 and 6) until the open-circuit voltage is at or below the inverter's maximum input voltage. Once you've adjusted the PV array configuration, the SUN2000 alarm should disappear.
M
Megan BarnesAug 25, 2025
What does Frequency Abnormal mean on a Huawei SUN2000-12KTL Inverter?
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  Andrew SandersAug 25, 2025
  The Huawei Inverter displays a Frequency Abnormal error when the grid's actual frequency is higher or lower than the required value for the local grid. If this alarm occurs accidentally, it's possible there's an issue with the grid. The inverter will automatically revert to normal once the problem is resolved.
K
Kimberly PrestonAug 25, 2025
How to troubleshoot Low Array Insulation Resistance on Huawei SUN2000-12KTL?
- S
  Sandra ClarkeAug 26, 2025
  The Huawei Inverter shows a Low Array Insulation Resistance error when the insulation resistance against ground of the PV strings is low, possibly due to a short circuit between PV strings and the ground. Check the insulation resistance against the ground of the PV strings and rectify any short circuit.
G
Glenn AllenAug 26, 2025
What does String 1-6 Reverse mean on Huawei SUN2000-12KTL Inverter?
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  Michelle HenryAug 26, 2025
  The Huawei Inverter shows 'String 1-6 Reverse' when the cables between PV strings were connected in reverse during installation. Check if the cables between PV strings are correctly connected and reconnect them if necessary.
C
christina90Aug 27, 2025
Why is my Huawei SUN2000-12KTL Inverter showing a Grid Voltage Abnormal error?
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  Shawn TranAug 27, 2025
  The grid voltage may be beyond the allowed range. This can happen if the grid A, B, or C phase voltage is less than the allowed range (Reason ID = 1 to 6), or if there's a power outage, a disconnected AC line, or a tripped AC circuit breaker (Reason ID = 29). If it's an accidental grid issue, the Huawei Inverter should automatically return to normal once the problem is resolved. Check if the AC voltage is normal.
M
Megan LongAug 28, 2025
What to do if Huawei SUN2000-12KTL Inverter shows Invert Module Fault?
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  Nancy RileyAug 28, 2025
  The Huawei Inverter indicates an Invert Module Fault when abnormal external conditions trigger converter circuit protection inside the inverter. This could be due to a sharp drop in grid voltage or a short circuit, causing high output current (Reason ID = 4), or the inverter's output short-circuiting (Reason ID = 20). The inverter monitors external conditions and should return to normal once the issue is resolved. Check for any short circuits in the inverter's output cables and fix them.
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Kayla PriceAug 28, 2025
What causes DC Bus Voltage Fault in Huawei SUN2000-12KTL?
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  Linda MeadowsAug 29, 2025
  A DC Bus Voltage Fault on your Huawei Inverter means abnormal external conditions have triggered DC circuit protection. This can happen if the inverter input is suddenly disconnected or shielded PV strings cause a sharp change in output power (Reason ID = 3), or if the input energy can't vent quickly due to a sharp change in grid voltage (Reason ID = 9 or 11). The inverter monitors external conditions and should automatically return to normal once the fault is rectified. If the alarm occurs repeatedly, contact Huawei technical support.
D
Derek ReidSep 5, 2025
Why does my Huawei Inverter show Abnormal Grid Voltage?
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  Margaret LopezSep 5, 2025
  If your Huawei Inverter is showing an Abnormal Grid Voltage error, it could be due to a couple of reasons. If the alarm seems to be a one-time occurrence (Cause ID = 4), it might be due to a temporary issue with the power grid, and the SUN2000 should automatically return to normal operation once the grid stabilizes. However, if the grid-tied point voltage is consistently too high (Cause ID = 16/19/26), you should contact your local power operator to investigate the grid conditions.
A
Alexis CaseSep 2, 2025
What to do if Huawei SUN2000-12KTL Inverter Firmware Upgrade Failed?
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  Mary FrancisSep 2, 2025
  A Firmware Upgrade Failed error on a Huawei Inverter means the upgrade process was incomplete. Upgrade again.
B
brownnathanielAug 31, 2025
What to check for Electrical Grounding Fault on Huawei Inverter?
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  browntylerAug 31, 2025
  An Electrical Grounding Fault on the Huawei Inverter indicates that the neutral wire or PGND cable is not properly connected to the inverter. Ensure that the neutral wire and PGND cable are correctly connected.

Huawei SUN2000-12KTL Specifications

General

Max. Efficiency	98.6%
Rated AC Power Output	12, 000 W
Dimensions (W x H x D)	525 x 470 x 262 mm
Weight	25 kg
Operating Temperature Range	-25°C to +60°C
Protection Rating	IP65
Max. Input Voltage	1100 V
Number of MPPT Trackers	2
Max. Input Current per MPPT	22 A
Cooling Method	Natural Convection
Max. apparent AC power	12000 VA
MPPT Voltage Range	200 V to 1, 000 V
Rated AC Voltage	220 V / 380 V, 230 V / 400 V, 240 V / 415 V
Warranty	5 years