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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Siemens SINVERT 350 Condition, Causes Cooling system is not working properly, Heat generation is exceeding tolerance

350, SINVERT 350 specifications

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