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Recent content by Jenkins

  1. J

    New to me picomax 51 cnc3 advice needed.

    Hello Bedantis, According to the manual for this machine it has 20mm drilling capacity in steel. Therefore there is a sense to have a collets which has max 20mm size. ER32 is perfect choice if availble. ER25 is also good option. Besides it will be very useful to have face mill holder (mounting...
  2. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Servo load information can be extracted from servo drives boards. Voltage between pin 4 (signal value) and pin 3 (gnd) on bottom jack is proportional to the motor's current. If you wish - you can add voltmeters on the control box to display current load.
  3. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    I managed to repair spindle motor driver. I've manually tested almost all ICs - all of them were good. Then I started digging in the schematic and measuring voltages in different points, and found root cause - V103 had parasitic resistanse base-emiter and when measuring it in diode-mode it was...
  4. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    I have also separate cabinet. Integration on\to the machine itself is not so bad idea, but it will not be easy task. A lot of wires need to be reconnected... Without full schematic of the machine i would not even think about it. But I also saw such example on the second picture
  5. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Meanwhile... Stromag CHA055 schematic extracted... (Without power board) I think this device has been done by analog maniac
  6. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Copying... Done! Before copying i did several investigations of what this box should do and how, in order to test it well before inserting to the machine. Briefly saying, this is 3 phases reversing contactor for the 380V AC motor, in this machine it is driving colump (head) up and down. It has...
  7. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    In my case +-15V are already fine ( after replacing capacitors ). When i'm enabling spindle it is turning on and going to the maximum possible speed for the motor itself without any limitation and not reacting to any change of speed settings. Also it is rizing error on the screen. This is not so...
  8. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Stromag cha055, same as your ( i found your pcb. schematic in the past), it is also not working, i'm in process of repairing it. Thanks for your PCB reverse-engineering I'm extracting its schematic, intermediate result in attachment, but it is not complete yet.
  9. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Just for curiosity I decided to extract schematic from another orange box - HDEC, maybe it will help to somebody in the future. Also, I found where it is connected - to the PLC board, to the "handbox" inputs. It looks like this is serial-to-parallel data converter.
  10. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Schematic with resistors and capacitors values. Column clamp is drived by another orange box. In my machine clamp is working, but motor is not moving, that's why i suspected this orange box, and as I see now - it's clear why :) This box, as I see, is turning on/off motor of column with reverse...
  11. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Yes, I followed your designators just to do not create additional mess. I discovered that contact "5" is conneted to the wire "232" which is connected to E25 input of PLC, and it is named "height adjustment down". Contact "7" is connected to the wire "233", and this is PLC input E24, named...
  12. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Schematic is ready. Now I will identify resistors values.
  13. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Which tool are you using for desoldering? Looks very nice ( no any visible damage )
  14. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Dear jz79 This is just amazing! Huge thank you again! I will reformat schematic for better readability (i'm busy on it right now) In the past I did reverse-engineering of DC motors drivers (X Y Z axises), I spend some weeks to do it.. If you want I can share it.
  15. J

    Fehlmann Picomax CNC 51 ("HVBV" relay, documentations)

    Huge huge thanks to you! I will post schematic once I will complete it!
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