Polar 176ED getting error codes 654, 608, 78 and 701

Discussion in 'Cutters and Trimmers' started by spcred@aol.com, Dec 14, 2016.

  1. spcred@aol.com

    spcred@aol.com New Member

    Joined:
    Dec 2016
    Messages:
    1
    Location:
    usa
    i have a 1998 Polar Cutter 176ED. I keep getting error codes 654, 608, 78 and most recently 701. Code 78 is the code most repeated. We have been able to clear and continue cutting for several hours or days error free but now we are receiving the one of these codes with most every cut. I believe the codes are identifying a problem with the lead-screw or it's encoder but we are exactly sure. Any ideas or thoughts on methods to trouble shoot the situation to exactly identify the problem?

    Thanks
    Spcred
     
  2. NimeshSilva

    NimeshSilva Senior Member

    Joined:
    Jan 2013
    Messages:
    246
    Location:
    Sri Lanka
    Hi,
    Seems you have a problem with grounding of the frequency converter (backgauge drive). Check the connection.

    Cheers.
     
  3. mehdi el abdali

    mehdi el abdali New Member

    Joined:
    Oct 2019
    Messages:
    1
    Location:
    morocco
    i have the same probleme (error 701) polar mohr 115
    i already connected the convertissor to the grounding but i still have the error code 701. can you helpe me by telling me wich kind of grounding probleme you meane and what is the solution

    Accept my greetings
     

  4. synthology

    synthology Member

    Joined:
    Apr 2017
    Messages:
    20
    Location:
    us
    I think it is time to call service

    701
    Error Text: WRONG BACKGAUGE DIRECTION !
    State: ERROR
    Cause: The counting pulses expected from the positioning counter are checked for their
    plausibility depending upon their direction of rotation. As a consequence, the value
    must be decreased with an advance movement of the backgauge and increased
    with the reverse movement. If this is not the case the backgauge run is interrupted
    and an error message output. This may be caused by a frequency converter or
    pulse generator improperly connected. This monitoring function is also active in
    secondary operation.
    Remedy: - Check connection of backgauge motor to frequency converter
    - Check connection from encoder
    - Replace pulse transducer
    - Replace board SAP

    654
    Error Text: NO POSITION COUNTER IMPULSES
    State: ERROR
    Cause: During an active backgauge run: if no or too few counting pulses are received from
    the signal transducer the above error message will be output.
    This is done whenever the actual speed of the backgauge falls below the nominal
    speed by 1/8.
    Remedy: - Check setting of frequency converter (service documentation)
    - Mechanical stiffness of backgauge drive
    - Check / adjust backgauge drive motor with brake
    - Frequency converter is defective
    - Check / replace pulse generator
    - Check cable routes / connections
    - Check / replace board SAP
    - Check / replace board CPxx
    - Check proper connection of main terminals from backgauge motor
    - Parting of cable to the limit switches in the clamp (S6, S218, S218b)
    - Check fuse F8
    - Current limitation G3 is active (POLAR 66)
    - Check correct adjustment of S13 and switching cam
    - Check correct grounding of backgauge motor
    - Install supporting rings for spindle (Polar 66)
    - Check tight fit of spindle extension
    - Adjust 0V by means of potentiometer on board SAP.

    608
    Error Text: KNIFE IMPULSES MISSING
    State: ERROR
    Cause: Too few counting pulses have been registered by the computer during an active
    cut. The sum of the counting pulses determined is bigger than 275 (knife pulse
    trace).
    Remedy: - Check correct grounding of frequency converter
    - Knife upstroke control is defective
    - Check cable route or bus connection / knife upstroke control - SAP - CPxx
    - Check / replace boards SAP, CPxx
    - Check data of knife gear control or knife trace; wrong pulse values in the trace
    are represented inversely
    - Check mechanical play of gears
    - Knife speed too low (clutch slides, clutch pressure too low).
    - Wear of clutch and brake linings.
    - Gear is too tight (replace it)
    - Check wear or soiling of slip ring and carbon brushes
    - Replace magnetic valve Y33
    - Short circuit of left bulb of optical cutting line indicator ( model 115)
    - Check card SK95, replace, if necessary
    - Check solenoid and sensors of safety bolt
    - Update the software (V 1.4.5-13 or higher)
    - Check air gap of brake on gearbox.
    - Check tight fit of shear bolt.

    78
    Error Text: SIZE ERROR
    State: HINT
    Cause: The value determined and filed for the table end size during the reference run is
    exceeded by a positioning input. Size inputs smaller than the accurancy allowance
    adjusted (default = 0.008 cm) or negative values will cause the same error
    message.
    Remedy: - Check size input and correct, if necessary
    - Check position of table limit switch "at rear" and correct, if necessary, if a size
    admissible for the respective machine size cannot be approached.
     
Loading...