The 1529 is NOT a Siemens starter fault. It’s a fault for a traction car that says it lost CAN comm with the drive. The starter is not a drive and does not communicate with the controller. The fault happens on power up when the software looks for a drive before it checks to see that it’s a hydro and was fixed in V6R2H. The 2755 wasn’t directly addressed in any software update that I know of and can be caused by bad grounding and problems with the AC line but I noticed them a lot along with the 1529 faults and see them much less frequently after that update.
Neither of these faults have anything to do with the 24v supply or the up to speed contact on the starter. To say that software updates aren’t for fixing bugs might be the strangest thing I’ve ever heard on here. I have 37 versions of CPUA software and I know I don’t have every version that was released. Almost all came with bug fixes and the ones that were just feature updates likely caused some bug that had to be fixed later.
Don’t install V6R12A if you have FL_ floor lockouts because the software treated them like phantom parking calls when they were high. V6R4C was pretty solid for a 32H and I’ll never go past that again for TAC50-04s since the last 32 bit upgrade I did with V7R6C kept taking the risers down (34 stop triplex) and shutting one of them down for a sheave runout sensor that it doesn’t have. The CPUAs had to be fully recovered to go backwards but rolling back to V6R4C fixed everything.
Just last week I installed the very latest V7R8B on 2 EVOs and it broke the CAN PIs on the hall riser.
I could go on but I won’t.
