Hello everyone,

We have a problem with the U/E module on a 4-axis CNC machine consisting of the following hardware configuration:

- Siemens 6FC5210-0DF22-2AA0 Sinumerik PCU 1.2GHz, 256RAM
- Siemens 6SN1146-1AB00-0BA1 Simodrive U/E module int-ext.5/10KW (VERSION A)
- Siemens 6FC5447-0AA00-0AA1 LT-MODUL
- Siemens 6FC5410-0AY03-1AA0 Sinumerik 810D CCU3.4 software vers. 6.5

From the pictures in the attachment, you can see that the red 3rd LED is lit, and in the manual I found that it indicates that there is a problem with the power supply.

I checked the voltage at the input and it is 407V, while the voltage on the DC bus is around 590V (after I give permission from the auxiliary circuit).

Thanks in advance!