s01 servo alarm:pr 0020 x

[alpercan.06]

Mitsubishi Meldas M50 error code S01-0020

hello
my problem is these message


servo alarm pr 0020 x
emg emergency srv

1002 z axis break off
1004 servo alarm
1027 axıs ampfile error


I turn off my machine and went to my home. When I came in the next day , I saw these messages. I attached pictures of alarm messages .please help me

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[arpit]

SO1 servo alarmr 0020 X ----- means no signal detection 1, explaination-> all of phase signal from the motor end detector become "H" or "L".
this is from mitsubisi meldas 520

[interruptedz]

check the cables,then the detectors, then ultimately the spindle amplifier