KACO Powador SCHUCO

### Error Causes and Remedies/Explanations

#### Inverter Displays Unrealistic Daily Peak Value
- **Cause**: Grid voltage failure.
- **Remedy/Explanation**: The inverter continues to function properly without any yield losses despite displaying an incorrect daily peak value. Values reset overnight. For immediate reset, disconnect the inverter and the DC grid voltage supply, then switch the inverter back on.

#### Daily Yield Values Differ from Utility Company's Power Meter
- **Cause**: Tolerances of the inverter’s internal measuring elements.
- **Remedy/Explanation**: Measurement errors due to tolerances of measuring elements. The daily yield may deviate from the power meter by up to 15%.

#### No Display Shown
- **Cause**: Night shutdown mode, no grid voltage, solar generator voltage less than 110V.
- **Remedy/Explanation**: The inverter shuts down overnight. If the display is off during the day, check the power meter for power delivery. If power is delivered, the display module may be defective and needs repair. Ensure grid voltage is present and solar generator voltage is above 125V. If still no power delivery, return the inverter to KACO for repair.

#### Inverter Does Not Start
- **Cause**: Night shutdown mode, no grid voltage, solar generator voltage less than 125V.
- **Remedy/Explanation**: Similar to no display shown, if the inverter doesn't start, ensure grid voltage presence and solar generator voltage is above 125V. If conditions are met but no power is delivered, the device needs returning to KACO for repair.

#### Inverter Active but Does Not Deliver Power
- **Cause**: Insufficient generator voltage, voltage measured < 125V.
- **Remedy/Explanation**: Generator voltage or power may be insufficient due to sunrise, sunset, or bad weather, preventing grid feeding.

#### Inverter Active but Does Not Deliver Power with Display Reading: Start from 125V
- **Cause**: The inverter interrupted grid feeding due to a malfunction/disturbance.
- **Remedy/Explanation**: After interruption due to malfunction, the inverter waits approx. 3 minutes before resuming grid feeding operation. Frequent interruptions may require contacting your solar installation provider.

#### Inverter Terminates Grid Feeding Shortly After Starting
- **Cause**: Defective grid isolation relay in the inverter.
- **Remedy/Explanation**: If insolation is sufficient but the inverter switches off after a few seconds, it might be due to a defective grid isolation relay, necessitating device return to KACO for repair.

#### Grid Fuse Triggers
- **Cause**: Insufficient grid fuse rating or damaged inverter hardware.
- **Remedy/Explanation**: The grid fuse should have a higher rating than the max. grid feeding current to avoid tripping at high insolation. Immediate fuse action upon grid feeding switch indicates damaged inverter hardware needing repair at KACO.

#### Inverter Causes Noise
- **Cause**: Special environmental conditions.
- **Remedy/Explanation**: Audible noise may occur under specific conditions without affecting inverter operation or performance. Possible causes include grid effects, dynamic weather conditions, grid resonance, or high-frequency hum perceptible to sensitive individuals, particularly children. This noise does not lead to inverter failure, damage, or reduced lifespan.

### Warnings

- **SP1 (PV SP) Failure W01**: Surge protector SP1 on the PV side has failed.
- **PV Fuse Failure W03**: The fuse on the PV side (optional) has failed.
- **Ground Fault Warning W04**: The insulation resistance of the PV module is below the specified alert limit for ground fault monitoring (optional).
- **PV Over Voltage Warning W05**: PV voltage exceeds the [PV Operate Level] parameter.
- **PEBB Over Temp. Warning W20**: Heatsink temperature for the PEBB (power electronics building block) exceeds 75°C.
- **PEBB Fan Failure W21**: The fan on the heatsink for the PEBB has failed.
- **SP2 (Grid SP) Failure W30**: Surge protector SP2 on the grid side has failed.
- **ASYNC Warning W111**: Voltage built up at inverter side is asynchronous with the grid.
- **Test Mode W40**: The system is operating in test mode.
- **Watchdog Failure W41**: The watchdog function triggered a system reboot.
- **Cabinet Over Temp. Warning W50**: The temperature in the cabinet exceeds the [Cabinet temperature maximum] parameter.
- **Cabinet Under Temp. Warning W51**: The temperature in the cabinet is below the [Cabinet temperature minimum] parameter.
- **SP3 (Control Power SP) Failure W52**: Surge protector SP3 for the control power has failed.
- **CB32 Open W53**: Circuit breaker CB32 has tripped.
- **SMPS Warning W54**: Failure of SMPS (Switched-mode power supply).
- **CAN Wrong Message W59**: Received a wrongly formatted CAN message.
- **CAN Time Out W60**: No CAN message received in the last 2 seconds.
- **CAN Multiple Master W61**: Multiple inverters acting as master in the CAN network.

### Errors

- **PV Over Voltage F01**: PV voltage exceeds the [DC over voltage level] parameter.
- **PV Over Current F02**: PV current exceeds the [DC over current level] parameter.
- **CB10 (PV CB) Trip F04**: Failure of circuit breaker CB10 on the PV side.
- **PV Polarity Reversal F05**: The polarity (+, -) of the PV side is reversed.
- **Ground Fault F06**: A ground fault has been detected.
- **Inverter Over Voltage F10**: Overvoltage on the inverter side.
- **Inv. Under Voltage F11**: Undervoltage on the inverter side.
- **Inv. Over Frequency F12**: Overfrequency on the inverter side.
- **Inv. Under Frequency F13**: Underfrequency on the inverter side.
- **Inv. Over Current F14**: Overcurrent on the inverter side.
- **Inv. MC (MC21) Failure F15**: Magnet contact failure on the inverter side.
- **Inv. Phase Order Failure F16**: Wrong phase order.
- **Inductor or TR Over Temp. F18**: Temperature of chokes exceeds 150°C.
- **Inv. Current Unbalance F19**: Phase unbalance exceeds 20%.
- **PEBB(1) IGBT Failure F20**: The PEBB for IGBT 1 has failed.
- **PEBB(2) IGBT Failure F21**: The PEBB for IGBT 2 has failed.
- **PEBB(3) IGBT Failure F22**: The PEBB for IGBT 3 has failed.
- **PEBB Over Temp. Analog F24**: Heatsink temperature exceeds 85°C.
- **PEBB Over Temp. Digital F25**: The thermostat switch tripped due to overtemperature.
- **Grid Over Voltage F30**: Overvoltage on the grid side.
- **Grid Under Voltage F31**: Undervoltage on the grid side.
- **Grid Over Frequency F32**: Overfrequency on the grid side.
- **Grid Under Frequency F33**: Underfrequency on the grid side.
- **Grid CB Trip F34**: CB20 (grid circuit breaker) tripped during operation.
- **Parameters Version Error F40**: Version mismatch between internal and program parameter tables.
- **Flash Memory Failure F41**: The flash memory for DSP C6000 programming failed.
- **FPGA Failure F42**: FPGA failure on XCU (main control) board.
- **DSP28x Failure F43**: DSP F2000 on the control board failed.
- **ADC Failure F44**: Analog-digital converter on the control board failed.
- **NVSRAM Failure F45**: NVSRAM on the XCU board failed.
- **ASYNC Failure F46**: ASYNC Warning (W31) repeated more than 10 times.
- **CAN Failure F47**: CAN communication failure in the network.
- **MC22 Failure F49**: MC22 failed.
- **Emergency Stop F50**: The emergency stop was activated.
- **Cabinet Over Temp. F51**: Cabinet temperature exceeds 55°C.
- **MMI-XCU Communication Error F63**: Communication failure between MMI and XCU board.

- **W01 - SP1 (PV SP) Failure**: Surge protector SP1 on the PV side failed.
- **W03 - PV Fuse Failure**: Fuse on the PV side failed (optional).
- **W04 - Ground Fault Warning**: Insulation resistance of the PV module is below the specified alert 1 limit under ground fault monitoring (optional).
- **W05 - PV Over Voltage Warning**: PV voltage is greater than the [PV Operate Level] parameter.
- **W20 - PEBB Over Temp. Warning**: Heatsink temperature for the PEBB (power electronics building block) exceeds 75°C.
- **W21 - PEBB Fan Failure**: Fan on the heatsink for the PEBB failed.
- **W30 - SP2 (Grid SP) Failure**: Surge protector SP2 on the grid side failed.
- **W111 - ASYNC Warning**: Voltage buildup at the inverter side is asynchronous with the grid.
- **W40 - Test Mode**: System is operating in test mode.
- **W41 - Watchdog Failure**: Watchdog function activated and system rebooted.
- **W50 - Cabinet Over Temp. Warning**: Cabinet temperature exceeds the [Cabinet temperature maximum] parameter.
- **W51 - Cabinet Under Temp. Warning**: Cabinet temperature is below the [Cabinet temperature minimum] parameter.
- **W52 - SP3 (Control Power SP) Failure**: Surge protector SP3 for the control power failed.
- **W53 - CB32 Open**: Circuit breaker CB32 has tripped.
- **W54 - SMPS Warning**: Failure of SMPS (Switched-mode power supply).
- **W59 - CAN Wrong Message**: Received CAN message is wrongly formatted.
- **W60 - CAN Time Out**: No CAN message received in the last 2 seconds.
- **W61 - CAN Multiple Master**: Multiple inverters acting as a master in the CAN network.

### Errors

- **F01 - PV Over Voltage**: PV voltage is greater than the [DC over voltage level] parameter.
- **F02 - PV Over Current**: PV current exceeds the [DC over current level] parameter.
- **F04 - CB10 (PV CB) Trip**: Circuit breaker CB10 on the PV side failed.
- **F05 - PV Polarity Reversal**: Polarity (+, -) of the PV side is reversed.
- **F06 - Ground Fault**: A ground fault has been detected.
- **F10 - Inverter Over Voltage**: Overvoltage on the inverter side.
- **F11 - Inv. Under Voltage**: Undervoltage on the inverter side.
- **F12 - Inv. Over Frequency**: Overfrequency on the inverter side.
- **F13 - Inv. Under Frequency**: Underfrequency on the inverter side.
- **F14 - Inv. Over Current**: Overcurrent on the inverter side.
- **F15 - Inv. MC (MC21) Failure**: Magnet contact failure on the inverter side.
- **F16 - Inv. Phase Order Failure**: Incorrect phase order.
- **F18 - Inductor or TR Over Temp.**: Temperature of chokes exceeds 150°C.
- **F19 - Inv. Current Unbalance**: Phase unbalance greater than 20%.
- **F20 to F22 - PEBB IGBT Failure**: Failures in PEBB for IGBTs 1, 2, and 3.
- **F24 & F25 - PEBB Over Temp.**: Heatsink temperature exceeds 85°C or thermostat switch tripped due to overheating.
- **F30 to F33 - Grid Voltage/Frequency Issues**: Overvoltage, undervoltage, overfrequency, and underfrequency on the grid side.
- **F34 - Grid CB Trip**: CB20 (grid circuit breaker) tripped during operation.
- **F40 to F47 - System Failures**: Various system failures including version error, memory failure, FPGA failure, DSP failure, and CAN communication failure.
- **F49 to F51 - Operational Failures**: Including MC22 failure, emergency stop, and cabinet over-temperature.


**Troubleshooting Guide**

**Issue: No message on display and LEDs are off.**
- **Cause:** No mains voltage.
- **Explanation / Remedy:**
- Check if DC and AC voltage are within acceptable limits (see Technical Data).
- Inform KACO Customer Service.
- **Responsible:** E

**Issue: Inverter stops grid feed-in operation immediately after start-up, despite the presence of solar irradiation.**
- **Cause:** The inverter's grid disconnect relay is defective.
- **Explanation / Remedy:**
- Ensure that the PV generator provides sufficient power.
- If the grid disconnect relay is defective, have it replaced by KACO Customer Service.
- Inform KACO Customer Service.
- **Responsible:** C

**Issue: Inverter is active but not feeding into the grid. The display shows a grid anomaly.**
- **Cause:** Feed-in was interrupted due to a grid anomaly.
- **Explanation / Remedy:**
- Adjust the grid parameters to within the permissible operating limits (see "Commissioning" chapter).
- If a grid anomaly occurs frequently, contact your electricity network operator.
- **Responsible:** E

**Issue: Network protection triggered.**
- **Cause:** Under-dimensioned network protection.
- **Explanation / Remedy:**
- Use a protection device with a higher value than the maximum feed-in current (see "Installation" chapter).
- **Responsible:** E

**Issue: Hardware damage to the inverter.**
- **Explanation / Remedy:**
- Inform KACO Customer Service for inspection.
- **Responsible:** E

**Issue: Inverter shows unreliable daily peak values.**
- **Cause:** Network anomalies.
- **Explanation / Remedy:**
- No immediate action required; incorrect daily maximum values are reset overnight.
- **Responsible:** E

**Issue: Daily energy production values do not match the grid feed-in meter readings.**
- **Cause:** Tolerances in the inverter's measuring elements.
- **Explanation / Remedy:**
- No action required; daily energy yield values can deviate by up to 15% from the grid feed-in meter readings.
- **Responsible:** -

**Issue: Inverter is active but not feeding into the grid. Display shows: "Waiting for grid feed-in"**
- **Cause:** Generator voltage too low or unstable network/generator PV voltage.
- **Explanation / Remedy:**
- If necessary, adjust the start-up voltage in the parameters menu.
- **Responsible:** E

**Issue: The inverter is noisy.**
- **Cause:** Particular environmental conditions.
- **Explanation / Remedy:**
- No action required; noise does not affect inverter operation, power output, fault occurrence, damage, or lifespan.
- **Responsible:** -

**Issue: Despite sufficient irradiation, the inverter does not feed the maximum power into the grid.**
- **Cause:** The device is too hot and limits power output.
- **Explanation / Remedy:**
- Ensure the device is sufficiently cooled.
- Do not cover the cooling fins.
- **Responsible:** -

**Further Troubleshooting Issues and Solutions**

**Issue: Daily energy output values do not match those of the grid feed-in meter.**
- **Cause:** Measurement tolerances of the inverter's measuring components.
- **Explanation / Remedy:** The measuring components used in the inverter are selected to maximize energy yield. Due to tolerances, daily energy yield values can differ by up to 15% from the grid feed-in meter readings.
- **No intervention required.**
- **Responsible:** -

**Issue: Inverter is active but not feeding into the grid. Display shows: "Waiting for grid connection"**
- **Causes:**
- Generator voltage too low.
- Grid or PV generator voltage is unstable.
- Insufficient voltage or power from the PV generator for grid connection (too low solar irradiation).
- Before connecting to the grid, the inverter checks network parameters. The connection time varies depending on the regulations in the respective country and can take several minutes.
- The startup voltage value may not be set correctly.
- **Explanation / Remedy:**
- If necessary, adjust the startup voltage in the parameter menu.
- **Responsible:** E

**Issue: The inverter is noisy.**
- **Cause:** Particular environmental conditions.
- **Explanation / Remedy:** Under certain environmental conditions, the devices may produce noise, or the noise produced may become audible. This can be due to interference on the network caused by particular loads connected at the same point of the network or located in immediately adjacent spaces. Dynamic weather conditions or strong solar irradiation might cause a slight humming sound due to high power output. In some network conditions, resonance between the device's input filter and the network may occur, audible even when the inverter is not operational. The occurrence of such noises does not affect the inverter's operation or shorten the lifespan of the devices. In individuals with particularly sensitive hearing, the operating frequency of the inverter (~17 kHz) may be perceived as a high-frequency hum.
- **No intervention required.**
- **Responsible:** -

**Issue: Despite sufficient irradiation, the inverter does not feed maximum power into the grid.**
- **Cause:** The device is overheating and thus limiting power output.
- **Explanation / Remedy:** To prevent damage, the inverter has reduced its power output due to high internal temperatures. Refer to the Technical Data to ensure proper cooling is maintained. Ensure the cooling by convection is not externally obstructed. Do not cover the cooling fins.
- Ensure adequate cooling of the device.
- Do not cover the cooling fins.
- **Responsible:** E

Models: blueplanet
87.0TL3
92.0TL3
105TL3
110TL3
125TL3
137TL3
150TL3
155TL3
165TL3
Powador 2500xi 3600xi 4000xi 4500xi 5000xi
25000xi 30000xi 33000xi M L XL Parck
1501xi 2901xi 3601xi
2.0TL1 3.0TL1 4.0TL1 5.0TL1
12.0TL3-INT
14.0TL3-INT
18.0TL3-INT
20.0TL3-INT
3200 4200
4400 5300
5500 6600
32.0TL3
40.0TL3
50.0TL3
60.0TL3
10.0TL3
12.0TL3
14.0TL3
18.0TL3
2002 3002
4202 5002
6002
5.0TL3 6.5TL3
7.5TL3 8.6TL3
9.0TL3 10.0TL3
XP100-HV XP200-HV XP250-HV