Mitsubishi Electric Q Series Programming Manual page 128

6 DRIVE MODULE
Control mode
Linear control
Circular/helical
interpolation control
Fixed-pitch feed
Constant-speed
control
Speed control ( )
Position follow-up
control
Speed-switching
control
JOG operation
(8) Reverse return during positioning
By specifying a negative speed and making a speed change request by the
CHGV instruction during the start, allow the axis start deceleration at that point
and return in the opposite direction upon completion of deceleration.
The following operations by the servo instruction are shown below.
Servo instruction
ABS 1 INC 1
ABS 2 INC 2
ABS 3 INC 3
ABS 4 INC 4
ABS circular ABH circular
INC circular INH circular
FEED 1 FEED 2
CPSTART1 CPSTART2
CPSTART3 CPSTART4
VF VR
PFSTART
VSTART
(Note) : Minor error [305]: The setting speed is outside the range of 0 to the speed limit value.
• On completion of deceleration, the axis reverses
its travel direction, returns to the positioning start
point at the absolute value of the specified speed,
and stops (waits).
For circular interpolation, the axis returns in the
circular path.
FEED 3
• On completion of deceleration, the axis reverses
its travel direction, returns to the preceding point at
the absolute value of the specified speed, and
stops (waits).
• On completion of deceleration, the axis reverses
its travel direction at the absolute value of the
specified speed.
The axis does not stop until a stop instruction is
input.
• The axis cannot return.
• The speed change request is regarded as a
normal speed change request.
• Minor error [305]
controlled at the speed limit value.
6 - 7
Operation
(Note)
occurs and the axis is