57
・
Prohibit operation in the direction opposite to command (b-08 = 1):
This setting prohibits an operation in the direction opposite to the operation command at the time of start of
VF66B (DC motor drive). (Once started, an operation in the direction opposite to the operation command at
the time of start is prohibited until VF66B (DC motor drive) is stopped. After starting, even if you change the
forward rotation/positive voltage operation command to the reverse rotation/reverse voltage operation
command or vice versa, the prohibited direction is not changed unless VF66B (DC motor drive) is stopped.
Speed/voltage
command
is increased
Speed/voltage command is decreased
Started with forward
rotation/positive voltage operation
Operates in forward
rotation/positive voltage
Limits to +minimum speed/0 voltage
Started with reverse
rotation/reverse voltage operation
Operates in reverse
rotation/reverse voltage
Limits to -minimum speed/0 voltage
・
Prohibit opposite direction (b-08 = 2)
Regardless of the direction of the operation command, this setting prohibits operation in the direction of
reverse rotation/reverse voltage of the motor (forward rotation/positive voltage is the direction of the clockwise
rotation when viewing from the commutator). A speed/voltage command in the direction of reverse
rotation/reverse voltage is limited to +minimum speed/0 voltage.
Commutator side
Output axis
PG
Forward
rotation/
positive
voltage
