No such problems have been reported, so you are the first one. Can you confirm that both power supplies are connected to Simucube? Important: Please power off Simucube, then disconnect the AC (mains) side power cords, and wait a while, and only after this verify that the power cables are connected to Simucube 2 itself.
Power supplies removed and waited for 10min --> Blue lights are off
Pins of the power supply and motor controlled by the power supply -> i.O.
Power supply in the base and the tightness of the plug checked -> i.O. (with one minimally looking further even though both are locked in place)
Power supply units in the socket
Base switched on -> moves up normally
In the wall -> Base off
Plug off the power supply units in the motor reversed
In the wall -> Base off
If I set the “overall strength” to 75% (18.8NM / 17.1A), the error does not occur anymore, but as soon as I go higher, then the engine completely exits after a crash
Had the same issue with my SC2 pro for a few hours.
Pulled power supply cords out of the Base for a few seconds.
After that no problems anymore.
I assume it must have something to do with just one working power supply.
Yes, it should be possible to identify if either of the units is outright failed, or if a connector on the Simucube is the culprit. Would be a first occurrence of either of these issues.
You should test for example maximum torque against the endstop effect at 100% strength with quick steering movements. This should match any extreme situation.
But please, you and all others reading, restrain to doing such tests only for diagnostic purposes. We do not recommend running the Simucube 2 Pro device with just one PSU for any prolonged period.
Like I said on other post, two PSUs was one of my mayorn concerns about SC2 Pro to not buy it and go for the Sport. Potential failures x2 (home failures or SC2 failures or both)
@mika reading your suggestions about diagnosis test (testing with only one PSU on the Pro), I have deduced thats NEW safety firmaware is necesary on the Pro, SC2 must know in every moment if both PSUs are running or not.
Imagine that @andre was with one faulty PSU for a long period without issues or thinking that is a HandsOffDetection feature… That would damage the SC2 base?
It would be a reassuring feature to have in True Drive if at all possible.
Perhaps a line of text in the main startup tab, similar to the one that tells us if the emergency stop is released or not. A couple of check boxes that are ticked, showing that each of the supplies are detected?
Hi @Andre, one possibility is that the two PSUs are not perfect matches for each other. I.e. if their voltage output is too much different, then one PSU would get overloaded and shut down on peaks.
Do you happen to have a multimeter which you could use to check the output voltages of PSUs while disconnected from SC2?
It could be the case that the voltage difference between two PSUs is large enough to cause this issue.
SC2 draws power from PSU that has higher voltage, so if difference is large enough, then higher voltage PSU faults before lower voltage PSU begins supplying. It would cause chain reaction where higher voltage PSU trips first, then all load goes to lower voltage PSU and that trips too (so both PSUs will be off then).
Perhaps easiest solution here is that we’ll replace one of the PSU’s with unit that has better matching voltage. How does it sound?
Glad to hear your feedback! I’ll arrange someone from us to handle the case. Lets think overnight whether the PSU swap is the best approach, or do we get better ideas.
If you are going to swap power supplies it would make sense for you to choose 2 at the factory.
And make sure they are closely matched and replace both to the customer?
