polar emc115 monitor backguage speed

Discussion in 'Cutters and Trimmers' started by MRTYMM, May 6, 2021.

  1. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    n my machine, when we power up,monitor display scan reference, when we scan reference point, when we push handwheel backguage moves backward high speed but when pull forward the backguage move slow forward
    We cheched the following cards in other machine all of these card is good
    Sk,sfm,pi,mcm cards
    I think there is aproblem with limit s7
    I doen't known its place
    Can someone help me to know the problem
     
  2. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,956
    Location:
    Managua,Nicaragua
    Hi sir:

    1) First measure the power supply here is;

    Power Supply ( PS )

    The Power Supply board (PS) provides three stabilized voltages:
    +5 volts Tolerance: 5.08 -5.12 volts
    +12 volts Tolerance: 11.4 -12.6 volts
    + 24 volts Tolerance: 23.7 -24.3 volts

    Look if there are in Tolerance, otherwise, the electronic boards, WILL NOT function, and error coming.

    Send me Pics, if is possible.
     
  3. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Thanks for your reply
    I checked the ps ,pi,sk,sfm,mcm card in other machine and all cards are ok
    The machine move backword fast but
    the problem that the backguage move forward slowly
     
  4. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,956
    Location:
    Managua,Nicaragua
    I can understand.

    But, Would you Please send me Pics Of Power Supply???. Urgently

    Need to be sure, if are ok, waiting

    Blessing
     
  5. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Dear chock
    I am away from the machine in vaction till next sunday
    I am sure that the ps card is ok and i test it in other machine there is 3 leds is let on
     
  6. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,956
    Location:
    Managua,Nicaragua
    The Leds ON, if does mean are O.K!!!

    Please send me the Pics, and after IF are o.k , we will continue with the troubleshooting process.

     
  7. Coloured paper

    Coloured paper Senior Member

    Joined:
    Oct 2012
    Messages:
    258
    Location:
    Germany
    The reference run in a Polar 115 EMC is an automatically functioning procedure.

    You switch the machine on and you see the message on the screen. The next step is to activate the backgauge movement by using the hand fine adjustment or the push buttons in the keyboard.

    Activate the movement backward and the backgauge will move all the way backward up to the limit switch at the end of the table. The speed does not matter. If the backgauge is reaching the rear limit switch, the direction of the backgauge movement is automatically changed to forward. If not the rear limit switch needs to be adjusted.

    The first step of the reference run is made. The next step is scanning of searching the reference signal.

    The forward movement is performed slowly. During the backgauge forward movement the computer is waiting for the reference point signal from the linear scale underneath the table. Therefore the linear scale is sending a signal to the board PI. You may check this signal using the LED V15. If I remember correctly the LED V15 is the under most LED on the board. I am expecting the LED V15 is not showing the reference point signal during the forward movement and the backgauge is moving all the way the front limit switch.

    Does the LED V15 on the board PI shows any reaction? Or does the backgauge moves all the way the front limit switch and stops?

    Besides all this:
    In a Polar 115 EMC you should not do a reference run after switching on the machine.
    If the machine always asking for the reference run after switching on, the battery on the board CP is gone. This battery has two soldered cable. If you like to replace the battery you need an original battery from the Heidelberg agency or a very good electrician who is able to solder cable to a battery.
    Coloured paper
     
  8. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Dear coloured
    Thank for your reply
    I am sure that led v15 in PI card is let on
    And the machine read reference
    When push manual hand wheel
    The backguage move backword fast
    But when pull the hand wheel the backguage move forward slowly
    Also when we type measure
    The backguage move forward slowly
     
  9. Coloured paper

    Coloured paper Senior Member

    Joined:
    Oct 2012
    Messages:
    258
    Location:
    Germany
    If I understand you correct, the backgauge moves forward slowly and stops at the reference point (somewhere at approximatally 30 cm).

    Coloured paper
     
  10. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Yes the machine backguage move forward slowly and when you move by hand wheel its move forward slowly also
     
  11. Coloured paper

    Coloured paper Senior Member

    Joined:
    Oct 2012
    Messages:
    258
    Location:
    Germany
    If you see after the reference run the size (backgauge position on the screen), the reference run is finished and okay.

    In case you have no fast forward speed and slowly only, you have some possible problems:
    Switch S7 is doing the changeover between slow and fast. The signal from S7 goes straight to the little relay K11. There is no electronics involved!
    K11 is the small right relay all the way on the bottom on the board MCM. K11 activates the big contactor K11M.
    K11M is the left big contactor on the board MCM.
    If the switch S7 is active, K11 should be active and K11M should be active. Now you have slow speed (forward and backward).
    If the switch S7 is not active, K11 should be not active and K11M should be not active. Now you have fast speed (forward and backward).

    Coloured paper
     
  12. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Dear coloured
    I will check s7 but where its place
    Or its name
     
  13. Coloured paper

    Coloured paper Senior Member

    Joined:
    Oct 2012
    Messages:
    258
    Location:
    Germany
    S7 is between S9 and S8.

    The limit switches from the front to the rear are:
    S9 limit switch forward movement (no false clamp plate used) - Position at 24-25 mm.
    S7 changeover from fast to slow. First check S9 and S8. Afterwards make sure S7 is correct activated by the cam.
    S8 limit switch forward movement (false clamp plate used) - Position at 88-89 mm.

    S13 limit switch backward movement - Position at 116-116.5 cm

    Coloured paper
     
  14. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Dear coloured
    Is there is picture for the place of switches and sensors on the machine
     
  15. Coloured paper

    Coloured paper Senior Member

    Joined:
    Oct 2012
    Messages:
    258
    Location:
    Germany
    No problem. Send me an E-mail address via the conversation
     
  16. andy martin

    andy martin Member

    Joined:
    Aug 2016
    Messages:
    55
    Location:
    bradford po
    The switches in question are located under the bed at the back of the machine look under the bed near the gear box usually red coloured
     
  17. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Dear cp
    I send the email in conversation
     
  18. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Dear coloured
    The problem solved
    Thanks for you
     
  19. MRTYMM

    MRTYMM Member

    Joined:
    Apr 2015
    Messages:
    99
    Location:
    egypt
    Dear chock
    problem solved
    Thanks for you
     

  20. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,956
    Location:
    Managua,Nicaragua
    ok, sir Your welcome

    Great Job!!

     
Loading...