ProNet Plus Series AC Servo User's Manual
Parameter Pn511 description as following:
/TGON rotation detecting output
/S-RDY servo drive get ready output
/BK brake interlock output
/PGC encoder C pulse output
OT overtravel signal output
/RD servo enabled motor excitation output
/HOME home completion output
/TCR torque detection output
Related parameter:
(4) Setting the Brake ON/OFF Timing after the Servomotor Stops
With the factory setting, the /BK signal is output at the same time as the servo is turned OFF. The servo OFF timing can be
changed with a parameter.