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SINAMICS

DC-bus BLM fault30002

Thread Starter: malefix   Started: 7/6/2008 9:40 AM   Replies: 4

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  7/6/2008, 9:40 AM
malefix
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Hello!
I have this Sinamics module:BLM 6SL3330-1TE 380-480V >=530A and I have a problem about F30002 :DC-link overvoltage.

When I start blm, the power switch on and immediately switch off with fault F30002.

I note, on BLM that work correctly, that when the blm is off, on the DC-bus i must have about 24 v dc (someone knows why???). 
In this case on DC-BUS there is 0 V ( I test with digital multimeter), but if i see the parameter r26 (voltage on DC-BUS) on Starter the value is 207V. 
To test this measure I put 24V DC on DC BUS with an external power supply and the parameter r 26 it was 340V (with multimeter I measure 24V).

Probabily the damage was caused by an fast stop of the 5 motor under this DC-BUS at the same. time.

I reset all the parameter on BLM but the parameter r26 is never correct and this fact, when I switch on BLM causes the fault F30002.

I think that the sensor for voltage measure on BUS is fault down, what I can do? there is really a sensor (an hardware parts) that do this measure? The damage can be also on other part of the module? How can I replace this sensor or the hardware damage?
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  3/21/2012, 11:44 AM
Ziemens
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hy sir, did you solve this problem ? thank you
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  7/19/2012, 8:21 AM
Martin472
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Hello Ziemens,

I have similar problem, but with Smart Line Modul.
It is 250kW modul which feeds 3 booksize motor modules and one chassis motor module. SLM shows F30002 and the actual values of input and output voltage are nonsensical (DC 1530V and AC 1081V) and they don't change, even if the input voltage is switched off. Fault is not possible to acknowledge.

In description of fault 30002 there is remark about code which comes with this fault. It shows actual value of DC voltage when the fault occurs.

So I think that actual values of input and output voltages stayed in the values when F30002 occurs and I'm affraid of some problem with hardware inside CIM module caused by peak on DC bus.

I'm going to change CIM module and I let you know if the problem will be solved.

Martin 
Martin
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  7/19/2012, 2:18 PM
Ziemens
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Hy sir, we solved our problem as follows:

modification of the wiring as per manuals, so the line contactor is activated via an output in the control unit and after the 24VDC is applied, the Ready indicator on the smart line module must go green for a full switch on.

Thank you

 
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  7/20/2012, 10:07 AM
Martin472
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Hello Zeimens,

ok, maybe you had different problem.
I exchanged CIM module in SLM and after restart everything worked fine.
In my case there was probably something wrong with CIM hardware.
Thank you
Martin
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