Inovance H3U Series - Page 509

508
7
7 Motion Control
DRVZ: Mechanical zero return
1) When the start position is before DOG (including the case where the forward rotation limit 1 is
set to ON):
●
The system executes the zero return instruction to start the zero return action.
●
The system moves to the zero return direction at the zero return speed.
●
The system decelerates to the creep speed upon detecting the DOG frontend.
●
After detecting the DOG backend, the system stops upon detecting the rst origin signal.
2) When the start position is within the DOG:
●
The system executes the zero return instruction to start the zero return action.
●
The system moves to the direction opposite to the zero return direction at the zero return speed.
●
The system decelerates to stop upon detecting the DOG frontend. (Leaving DOG)
●
The system moves to the zero return direction at the zero return speed. (Entering DOG again)
●
The system decelerates to the creep speed upon detecting the DOG frontend.
●
After detecting the DOG backend, the system stops upon detecting the rst origin signal.
3) When the start position is after the DOG (the near point signal is set to OFF):
●
The system executes the zero return instruction to start the zero return action.
●
The system moves to the zero return direction at the zero return speed.
●
The system decelerates to stop upon detecting the reverse rotation limit 1 (reverse rotation limit).
●
The system moves to the direction opposite to the zero return direction at the zero return speed.
●
The system decelerates to stop upon detecting the DOG frontend. (Detecting [Leaving] DOG)
●
The system moves to the zero return direction at the zero return speed. (Entering DOG again)
●
The system decelerates to the creep speed upon detecting the DOG frontend.
●
After detecting the DOG backend, the system stops upon detecting the rst origin signal.
4) When the limit switch (reverse rotation limit 1) of the zero return direction is set to ON: