In D435, the 8 LED flashes and 7-segment dysplay show a "F"

PineCone

Dear guys,

I met a problem onsite, which is the 8 LEDs of Simotion D445 flashes in red simultaneously during running. There are 4 machines in the workshop. The problem only happens in one machine.

According to the document, 8 LEDS flashes in red simultaneously means "Fault is present to which the user program (Simotion) cannot respond. The following actions may be required to rectify the fault: Power OFF/ON; Examine the CF card; New commissioning procedure; Replace the D4x5".

We have taken the following actions, but all of them didn't solve the problem.

1. Power OFF/ON. This method can solve the problem temporarily. After Power OFF/ON, the problem disappeared, but it's not the real solution, because after some days the problem occurred again.

2. Replace D4x5. We have exchanged the D445 and the problem remains.

3. Replace CF card. We replace a new CF card and after the machine works well for 4 days, the problem happened again.

This problem happens very irregularly. It's very hard to trace. According to customer's saying, this problem happened 5 times in one day once before. But when I was there, I saw only 1 time in a week.

Do you meet such problem before and have any suggestions about this problem. Thanks a lot in advance.

Best regards,

Hello everybody.

I have a simila poblem, but this is with a D435, the 8 LED flashes and 7-segment dysplay show a "F". this occurs after discharging information at the D435, this fault is sporadic.

I attach the diagnostic buffer, you can see the fault in event 47 and event 48.

The vesion of Simotion is V4.1 SP1 HF6 with Sinamics V2.5 SP1 HF5

Thanks a lot in advance

Regards