Mazatrol - t plus - qtn 20 h-p

Dear Genius ..s,

I have a favour , I have a MAZATROL QTN - 20 H-P.
It showing alarm -- 322 Rapid Mode Imp. ( ORIGIN RETURN UNF ).
As soon as mc is switched ON - normal screen flash & then above alarm appear on screen botton left corner. All other screen go blank.
Operator panel back side PCB -- 24 & 5 VDC ok but no any LED blinking / ON on PCB.
On controller -- card no. Q 141 -- only one green LED is blinking -- second upper side LED is OFF.
Pl suggest -- what can I do.
I don't have any machine parameter.

Pl help.

Regards.

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