Siemens CU240B/E-2 Error F30024: Power unit: Overtemperature thermal model

Model

Siemens CU240B/E-2

Display shows

Power unit: Overtemperature thermal model (F30024)

Type

Fault code

Source

Manual p. 714

• Meaning
• Common causes
• What to do
• Still not solved
• Source

What F30024 means

Power unit: Overtemperature thermal model p. 714

Common causes

• Reaction: OFF2 p. 714
• Cause: p. 714
• - The permissible load duty cycle was not maintained. p. 714
• - insufficient cooling, fan failure. p. 714
• - overload. p. 714
• - ambient temperature too high. p. 714
• - pulse frequency too high. p. 714
• See also: r0037 (Power unit temperatures) p. 714
• Remedy: p. 714
• - check whether the fan is running. p. 714
• - check the fan elements. p. 714
• - check whether the ambient temperature is in the permissible range. p. 714
• - check the motor load. p. 714
• - reduce the pulse frequency if this is higher than the rated pulse frequency. p. 714
• - if DC braking is active: reduce braking current (p1232). p. 714

What to do

1. Acknowledge: IMMEDIATELY p. 714
2. - The temperature difference between the heat sink and chip has exceeded the permissible limit value. p. 714
3. - adapt the load duty cycle. p. 714

If F30024 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Siemens service.

This page summarises what the manufacturer’s manual says about F30024; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.