Polar 76 EM knife is not moving with no error codes

Hi every body ,
i am just new to the forum, and i am seeking you help
i have Polar 76 em cutter and the cutter knife is not moving at all when i press the 2 cut buttons, the machine llooks very normal it is not generating any error messages when i press the buttons.

it faced the same problem 2 days ago and i take out the KUP, KK and HK cards and cleaned them and place them back then the cutter workes fine for twodays ...
now the problem came back and i did the same practice but nathing changed,...

thanks for your help

 

Hi,
Does the clamp come down when you press the cut buttons? (Without pressing the foot peddle)

 

look for if you have the +24vdc at the cut button¿and 24 vdc too
to relais coil.
please take you schematic a follow it .
if the voltage is there clean the contact relais,loose connection
if NOT voltage, please see and test the power supply output
look for loose connector, desolder contact, or board with dry joint,
check you schematic diagram very well

 

thank you for your help

the clamp goes down without pressing on the foot peddle

to answer your questions:

look for if you have the +24vdc at the cut button¿and 24 vdc too
to relais coil.( yes the current is there)


( i did clean the relays but no improvement, my friend is electric engineer and he informed me that the relai coil is giving a bad signal and he recommended me to replace it but according to him this relays are not available any more and we should look for modification...
please advise where we can find the right relais...

 

ok thank you by youro information
However this is a difficult issue
You can try with with polar 2) Siemens as alternative 3) kloenec Muller 4) General Electrical
or any electronic spare parts store.
Back to me any questions or tech inform