6.2
Single-Speed Positioning Operation
and Interrupt Single-Speed Positioning
Operation
■
Single-speed positioning operation
When the single-speed positioning operation command
is received, the motor performs the following operation.
When the start command is given, the motor accelerates
up to the operating speed V(
I
) (BFMs #20 and #19), then
decelerates and stops in the set position P(
I
) (BFMs #18
and #17).
Theabsoluteposition from thepoint at which thecurrent
position CP becomes 0 (electric home position) or the
relative position from the start position can be specified
as the set position. When a servo motor is used, V
bia
is
generally set to 0.
■
Interrupt single-speed positioning operation
When the interrupt single-speed positioning operation
command is received, the motor performs the following
operation.
The interrupt command is connected to the DOG input
in thePGU.
When the start command is received, the motor starts
operation. When the INTERRUPT input is received, the
motor moves by the specified distance, then stops (The
relative travel exclusively can be specified.)
The current value is cleared by the start command. The
current value starts to change by the INTERRUPT input,
and becomes equivalent to the set position when the
operation is completed.
Accordingly, rigid attention should be paid when
operations using absolute position specification are
performed also.
The interrupt command detects change in the input
signal. (OFF
→
ON, ON
→
OFF)
Speed
Travel P (
I
)
max
V
bia
V
V (
I
)
Speed
Travel P (
I
)
max
V
V (
I
)
V
bia
Start
Interrupt command (DOG input)
6
FX-1PG/FX
2N
-1PG PULSE GENERATOR UNIT
OUTLINE OF OPERATION MODES
6-6
