5124356 is the PAF M33 brake board of the Orona ARCA II control cabinet. It supplies the brake coil of the M33 machine, releasing the brake when the controller calls for motion and letting it drop when the car stops. Orona lists it apart from the standard PAF board because the M33 brake circuit differs, so the two are not a straight swap. It is a cabinet board, not the main controller, and it belongs to the ARCA II generation.
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Other brake boards of the ARCA II cabinet, and the boards it works with.
Brake boards:
Boards of the same cabinet:
Potensi supplies the Orona elevator brake board PAF M33 5124356, the Orona ARCA II PCB board and the cabinet boards around it. The models above are only a part of what we can supply. We stock and source a much wider range of related and alternative models. If your model number is not listed here, please send us the model number or a photo of the original part, and we will confirm availability and the correct match for you.
Q1: What does the PAF board actually do?
R: PAF stands for the brake supply board: Orona’s own board list names it as the brake activation board, and the ARCA II manual calls it the board that supplies the brake or the valve coils. It switches and feeds the brake coil, so it decides when the brake lifts for a run and when it drops again. That is why a fault here shows up as a brake that will not release, not as a lift that will not level.
Q2: Is 5124356 the same as 5124355?
R: No. 5124355 is the standard PAF board and 5124356 is the PAF M33 version, and Orona keeps them as two separate entries in its board list. The M33 machine has its own brake circuit, so the board that drives it is not the standard one. Check the machine type on the nameplate and the board number printed on the old PCB before you order.
Q3: Some suppliers list 5124375 for the M33. Which one do I need?
R: 5124375 is the number most distributors now list for the PAF M33 board, while 5124356 is the number Orona’s ARCA II board list gives. We treat them as two numbers of the same brake board family, but we do not assume one replaces the other in every cabinet. Send us a photo of the board you are taking out and we will match the number, the connector layout and the revision.
Q4: What brake voltage should I expect?
R: Orona’s ARCA II documentation gives 205 V DC as the brake voltage, and the same generation also lists a 60 V DC brake option in its configuration tables. Measure at the brake coil and read the coil label rather than assuming, because the two are not interchangeable. With the voltage confirmed we can tell you whether the board you have is the right one for that brake.
Q5: The brake will not lift and the car does not start. Is the board at fault?
R: The board is one candidate, but it is not the first thing to test. Check the supply reaching the board, then measure at the brake coil: if the coil sees no voltage while the controller is calling for a run, the board or its feed is suspect, and if the coil sees voltage but the brake stays shut, the fault is in the brake itself. A photo of the board with its LEDs, taken while the fault is present, helps us narrow it down.
Q6: What should I send you before ordering?
R: A photo of the old board, front and back, showing the number printed on the PCB and the connector layout. Tell us the cabinet generation (ARCA II or ARCA 3) and the machine type on the nameplate. With those three we can confirm the number and the revision before dispatch.
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