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== Problem description == | == Problem description == | ||
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This guide concerns most Siemens Sinamics inverters with similar board to Figure 1. The issue happens suddenly and unexpectedly. Many Errors appear (it varies between inverters and which part is faulty) | |||
[[File:20241105 150141.jpg|thumb|Main board (figure 1)]] | |||
[[File:20241105 150438.jpg|thumb|Good trafo measurement (figure 2)]] | |||
[[File:20241105 150414.jpg|thumb|Failed trafo measurement (figure 3)]] | |||
[[File:20241105 150649.jpg|thumb|Under the transformer, after soldering the broken wire (figure 4)]] | |||
== Symptoms == | == Symptoms == | ||
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Detail all measurable or observable symptoms in this section. | Detail all measurable or observable symptoms in this section. | ||
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* | * Multiple errors | ||
* | * Can not clear errors | ||
* Physically good components, no visible damage | |||
* | |||
== Solution == | == Solution == | ||
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To solve this issue, you need to identify if this guide is for your specific problem first. | |||
=== Diagnostic Steps === | === Diagnostic Steps === | ||
* Open up the inverter | |||
* Check for any physical damage such as blown up [[Transistors - Repair Basics|IGBT]] | |||
* If there is any physical damage, this guide is not for you. | |||
* If there is no physical damage, measure all the transformes on the board like in figure 2, if you read near 0 Ohm, it's good measurement, if it is higher or OL (figure 3), then you have a cut off inductor. Proceed to repair steps.<br /> | |||
=== Repair Steps === | |||
You can just buy and replace the transformer and that will fix the issues. If you can't buy it or it is not available, you can fix it yourself. | |||
The reason those transformers usually fail is not because of too much current but because they're filled with resin and with many cycles of heating up and cooling down the wire outside the resin gets pulled from the resin and it cuts it off (figure 4) you can just solder it again and it will work again. | |||
Latest revision as of 14:56, 5 November 2024
| Siemens Sinamics Inverter Many Errors Pop-up Repair | |
|---|---|
| Device | Sinamics 6SL3120-2TE15-0AA4, Sinamics 6SL3120-1TE23-0AA3, Sinamics 6SL3120-2TE21-0AA4 |
| Affects part(s) | DC-DC transformer (VAC 5046X005 |
| Needs equipment | multimeter, soldering iron, soldering station |
| Difficulty | ◉◉◉◌ Hard |
| Type | Soldering, Part replacement |
Problem description
This guide concerns most Siemens Sinamics inverters with similar board to Figure 1. The issue happens suddenly and unexpectedly. Many Errors appear (it varies between inverters and which part is faulty)
Symptoms
- Multiple errors
- Can not clear errors
- Physically good components, no visible damage
Solution
To solve this issue, you need to identify if this guide is for your specific problem first.
Diagnostic Steps
- Open up the inverter
- Check for any physical damage such as blown up IGBT
- If there is any physical damage, this guide is not for you.
- If there is no physical damage, measure all the transformes on the board like in figure 2, if you read near 0 Ohm, it's good measurement, if it is higher or OL (figure 3), then you have a cut off inductor. Proceed to repair steps.
Repair Steps
You can just buy and replace the transformer and that will fix the issues. If you can't buy it or it is not available, you can fix it yourself.
The reason those transformers usually fail is not because of too much current but because they're filled with resin and with many cycles of heating up and cooling down the wire outside the resin gets pulled from the resin and it cuts it off (figure 4) you can just solder it again and it will work again.