Siemens TL.. Instructions d'exploitation télécharger pdf (Page 31)

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.

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 –

current limit value)

o 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

Causes

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

⇒ Air outlet is restricted

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Siemens TL.. Instructions d'exploitation Page 31

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