Sinumerik Alarm 300764 Axis %1 drive %2 emergency retraction mode/generator mode not possible
Parameters:
%1 = NC axis number
%2 = Drive number
Definitions:
Emergency retraction/Generator operation is only possible with an active DC link measurement (MD 1161: $MD_FIXED_LINK_VOLTAGE (DC link fixed voltage = 0). In an old hardware version, no DC link measurement is possible and therefore the error message 300765 might appear in addition if MD 1161: $MD_FIXED_LINK_VOLTAGE (DC link fixed voltage) is set to 0 in an old hardware version.
Reactions:
– NC not ready.
– Channel not ready.
– Channel not ready.
– NC Stop on alarm.
– NC Start disable in this channel.
– The NC switches to follow-up mode.
– Alarm display.
– Interface signals are set.
Remedy:
Enter the value zero in the machine data MD 1161: $MD_FIXED_LINK_VOLTAGE (DC link fixed voltage), or order a new hardware version of the control module.
Program Continuation:
Clear alarm with the RESET key in all channels. Restart part program.
References
- Siemens Diagnostics Guide by Siemens