Siemens 350 Benutzerhandbuch
Alarm and fault messages
4.2 Alarm and fault messages
31
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.
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
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
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
⇒ 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
⇒ 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)
without preceding warning level 1 in the PPsolar
event memory)
o
Cooling system is not working properly
⇒ Housing fans are not running
⇒ Housing fans are not running
⇒ Fans are defective
⇒ Thermostat is defective
⇒ Thermostat is incorrectly set
⇒ Thermostat is defective
⇒ Thermostat is incorrectly set
⇒ Air intake is restricted
⇒ Air inlet grille on housing is clogged
up
⇒ Air outlet is restricted