Friedrich C24YJ Instrukcja Użytkownika Pobierz pdf (Strona 60)

- 60 -

Only for training and service purposes

DC Link High / Low Volt

• DC Link Voltage is

above 420Vdc

• DC Link Voltage is

below 140Vdc

• Check CN_(L), CN_(N) Connection

• Check Input Voltage

• Check PCB DC Link voltage sensor parts

Display

code

Title Cause of error Check point & Normal condition

n Error Diagnosis and Countermeasure Flow Chart

Is Inverter PCB assembly

Power connection normal?

Check connection from terminal block to

Inverter PCB assembly CN(L), CN(N)

Yes

Is input voltage normal ?

Yes

Is Inverter PCB Normal?

Replace inverter PCB assembly

Recheck power and installation

condition

Yes

Check L~N Voltage is 230V±15%

WARNING

Before checking PCB or each outdoor electric parts, wait for 3 minutes after the power is off. When measuring at standby state

of power supply, after checking the measurement mode of the meter, be careful of the short-circuits with other parts.

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Friedrich C24YJ Instrukcja Użytkownika Strona 60