Siemens SINVERT 350 manual Condition, Causes Cooling system is not working properly

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Alarm and fault messages

4.2 Alarm and fault messages

Table 4-3 Fault 0

(Alarm) General fault on transformer

 

Condition

The hardware contact in the power unit has tripped.

 

Causes

There is a defect in the inverter.

 

Measures

Replace the affected components.

 

 

Replace the drive.

Table 4-4 Faults 1 and 33

Message 1 (alarm): Inverter is signaling overtemperature, stage 1

Fault 33 (alarm): Inverter is signaling overtemperature, stage 2

Condition An excessive heatsink temperature in the inverter has been detected.

The thermoclick circuit for the reactors and transformers has been interrupted.

Causes

Cooling system is not working properly

 

o

Drive fan is not running

 

 

⇒ Fan motor is defective

 

 

⇒ Start capacitor is defective

 

 

⇒ No power supply to fan

 

 

⇒

USI is defective

 

 

⇒

Infeed transformer is defective

 

o

Heatsink is blocked

 

o

Drive fan speed is too low

 

 

⇒ Infeed transformer is connected to tap

 

 

460 V instead of 400 V

 

Heat generation is exceeding tolerance

 

o

Current is too high

 

 

⇒ Parameter setting error (CU software –

 

o

current limit value)

 

IGBT module defective

Fault in measured-value sensing

o Temperature sensor in heatsink is defective o Temperature sensor connection is defective o CU data input is defective

Reactor or transformer is overheating (fault 33 only, without preceding warning level 1 in the PPsolar event memory)

o Cooling system is not working properly ⇒ Housing fans are not running

⇒ Fans are defective

⇒ Thermostat is defective

⇒ Thermostat is incorrectly set ⇒ Air intake is restricted

⇒ Air inlet grille on housing is clogged up

⇒ Air outlet is restricted

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Contents Sinvert Photovoltaic Trademarks Safety instructionsQualified personnel Proper handlingContents Figures TablesAbout this documentation IntroductionScope of validity History Chapter ContentsTarget group Document structureApplication DescriptionCommissioning the inverter Instructions and safety informationFive safety rules in Germany Hardware operationSwitching off and disconnecting the power supply Switching on Operator panel Operating the inverterPin Signal Switching the inverter on and off Operating modeLocal/Remote selector switch Grid LED indicator bar Fault resetDisplaying currently active alarms and faults Adjusting the voltageStandby operation LED Standby Maximum Power Point LED MPPAutomatic mode / Test mode Fault displayPPsolar Communication with the inverter1 WEB’log WinCCRed System components are malfunctioning Control Panel PPsolar Oscilloscope function PPsolar Device Information SINVERT-SettingsActual values Actual Value SummaryPV Generator Weather conditionsMains Interface Data Storage PPsolar Energy10 Analysis window PPsolar Fault display / messages Alarm and fault messagesFault handling Fault typesMeaning Category Alarm and fault messagesMain cause LED Differences in potential in the PV field Faults Causes/diagnostics/remedial measuresCauses DiagnosticsMeasures Heat generation is exceeding tolerance Fault in measured-value sensingCondition Causes Cooling system is not working properlyCauses Inlet air temperature too high No checkback signal from the AC contactor Causes No power supply for Fast OFFCauses No line voltage for Fast OFF Causes Measured DC voltage is too high13 Fault Alarm Vce monitor has responded 16 Fault Alarm Direct current too high Causes Contact in the signaling circuit is open Remedial Possible24 Fault Alarm Grid voltage outside tolerance Alarm without fault Contact addresses SupportGermany
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350, SINVERT 350 specifications

The Siemens SINVERT 350 series is a high-performance, lightweight inverter system designed to optimize energy conversion in solar power applications. With a power rating of up to 350 kW, this inverter model is tailored for large-scale photovoltaic installations and commercial applications. Its key features and technological innovations make it a valuable addition to any renewable energy project.

One of the main features of the SINVERT 350 is its advanced grid management capability. The inverter is equipped with sophisticated monitoring systems that ensure compliance with various grid connection standards, enhancing stability and reliability for the operator. This ensures seamless integration with existing power grids while optimizing energy yield. Additionally, it supports various grid support functionalities, helping maintain grid stability during high-demand periods.

Another notable characteristic is its modular design. The SINVERT 350 allows for easy integration with other units, scaling effectively to meet the power needs of larger installations. This modularity not only enhances flexibility but also simplifies maintenance and reduces operational costs over time. Each unit can be easily accessed, which minimizes downtime during servicing.

The SINVERT 350 also features advanced cooling technology. With its robust thermal management system, the inverter operates efficiently even under high temperatures, ensuring longevity and reliability. The design minimizes losses due to heat, effectively enhancing the overall energy conversion efficiency.

In terms of safety, the SINVERT 350 is built with integrated protection mechanisms, including over-voltage and short-circuit protections. These safety features safeguard both the inverter and the connected photovoltaic modules, ensuring a secure operating environment.

Another highlight is the inverter’s compatibility with the Siemens Smart Grid solutions. This integration means users can access comprehensive monitoring and analytics tools, enabling real-time performance tracking and optimization of energy output. With built-in web-based connectivity, operators can manage the system remotely, gaining insights and facilitating proactive maintenance.

In conclusion, the Siemens SINVERT 350 series combines robust performance, innovative technologies, and reliable safety features to create a compelling choice for large-scale solar energy projects. Its advanced design ensures operational efficiency and adaptability, thereby enhancing the overall viability of solar energy as a sustainable power source.
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