Siemens Comprehensive Guide to Sinvert Water Heater Alarm and Fault Messages
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Alarm and fault messages

4.2 Alarm and fault messages

 

Causes

Inlet air temperature too high

 

 

o

Air inlet to switchroom is blocked

 

 

o

Air outlet from switchroom is restricted

 

 

o

Ambient temperature is too high

 

Measures

Replace the defective components

 

 

Check the parameter settings

 

 

Clean or enlarge the air inlet

Table 4-5 Faults 4 and 47

 

 

Fault 4 (alarm): Inverter overload, I²t monitoring, stage 1

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

Condition The CU has detected a current which is higher than the permissible l²t limit.

Causes

Excessive current

 

o

Parameter setting error (CU software –

 

 

current limit value)

 

Fault in measured-value sensing

 

o

Parameter setting error (CU software - limit

 

 

value I2t)

Measures

Adjust the parameter settings

Table 4-6 Fault 6

(Alarm) overload

 

Condition

The CU has detected a current which is higher than the

 

 

selected permissible value.

 

Causes

USI is defective

 

 

AC current transformer defective

 

 

Parameter setting error

 

Measures

Adjust the parameter settings

Table 4-7 Fault 12

(Alarm) System is in commissioning mode

 

Condition

The CU has detected that commissioning mode is

 

 

selected

 

 

 

 

Causes

The CU is in commissioning mode

 

Measures

Set the CU operating mode to "Reversion"

Table 4-8 Fault 14

(Alarm) Fan has exceeded its useful life

 

Condition

The hours counter in the CU has reached "0" (hours are

 

 

counted backwards)

 

 

 

 

Causes

The fan has operated for 35,000 hours since initial

 

 

commissioning

 

 

The value set initially for the hours counter was too low

 

Measures

Replace the fan.

 

 

Set the hours counter to 35,000 hours.

The fans do not necessarily develop defects after working for this number of hours.

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Contents Sinvert Photovoltaic Safety instructions Qualified personnelProper handling TrademarksContents Tables FiguresScope of validity IntroductionAbout this documentation Chapter Contents Target groupDocument structure HistoryDescription ApplicationInstructions and safety information Five safety rules in GermanyHardware operation Commissioning the inverterSwitching off and disconnecting the power supply Switching on Operating the inverter Operator panelPin Signal Local/Remote selector switch Operating modeSwitching the inverter on and off Fault reset Displaying currently active alarms and faultsAdjusting the voltage Grid LED indicator barMaximum Power Point LED MPP Automatic mode / Test modeFault display Standby operation LED StandbyCommunication with the inverter 1 WEB’logWinCC PPsolarRed System components are malfunctioning Control Panel PPsolar Oscilloscope function PPsolar SINVERT-Settings Device InformationActual Value Summary Actual valuesMains Interface Weather conditionsPV Generator Energy Data Storage PPsolar10 Analysis window PPsolar Alarm and fault messages Fault handlingFault types Fault display / messagesMain cause Alarm and fault messagesMeaning Category LED Faults Causes/diagnostics/remedial measures Differences in potential in the PV fieldMeasures DiagnosticsCauses Fault in measured-value sensing ConditionCauses Cooling system is not working properly Heat generation is exceeding toleranceCauses Inlet air temperature too high Causes No power supply for Fast OFF No checkback signal from the AC contactorCauses Measured DC voltage is too high Causes No line voltage for Fast OFF13 Fault Alarm Vce monitor has responded 16 Fault Alarm Direct current too high Causes Contact in the signaling circuit is open Possible Remedial24 Fault Alarm Grid voltage outside tolerance Alarm without fault Support Contact addressesGermany
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