Polar 76EM Error 81

Hi,
We are getting error 81 on Polar 76EM. Does anybody know what this is?
Happens after hitting start button following power up. Knife is top dead center and safety bolt appears to be OK
 
try completing one knife cycle manually until u hear a clicking noise
if not then it seems to be the winding on the valve over heated, unfortunately will need a new one
which is quite expensive
 
Dear Highlander,

Number -81-

The monitor switch of safety bolt is
acknowkedging both endstops at the
same time.

Check switch S.SB
Check connection S.SB - CU 9
On machines with proximity switches
monitoring the safety bolt:
Check supply voltage for theswitches
(Plug 44)
Check connection IAR - AR. (flat
wire harness)
Exchange card IAR
Exchange card AR

Hope it can help you a lot.

Please contact me if you are looking for spare parts



Welvin Engineering Limited
Simon Yeung
 
Last edited by a moderator:

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