8.3 External Positioning (EX_POSING)
8-11
8
(2) Holding
Axis travel can be stopped during command execution and then the remaining travel can be restarted. A com-
mand is held by setting the Command Pause bit (OB
090) to 1.
1. Set the Command Pause bit (OB
090) to 1. The axis will decelerate to a stop. When the axis has
stopped, the Hold Completed bit (IB
091) will turn ON.
2. Reset the Command Pause bit (OB
090) to 0. The command hold status will be cleared and the remain-
ing portion of the positioning will be restarted.
(3) Aborting
Axis travel can be stopped during command execution and the remaining travel cancelled by aborting execution
of a command. A command is aborted by setting the Command Abort bit (OB
091) to 1.
Set the Command Abort bit (OB
091) to 1. The axis will decelerate to a stop. When the axis has stopped, the
remain travel will be canceled and the Positioning Completed bit (IB
01C) will turn ON.
This type of operation will also be performed if the motion command is changed during axis movement.
(4) Related Parameters
(a) Setting Parameters
Parameter
Name
Setting
OB
000
Servo ON
Turn the power to the Servomotor ON and OFF.
1: Power ON to Servomotor, 0: Power OFF to Servomotor
Turn ON the power before setting the Motion Command (OW
08) to 2.
OB
013
Speed Loop
P/PI Switch
Switch the speed control loop between PI control and P control.
0: PI control, 1: P control
OW
03
Function 1
Set the speed unit, acceleration/deceleration unit, and filter type.
OW
04
Function 2
Set the external positioning signal.
2: phase-C pulse, 3: /EXT1, 4: /EXT2, 5: /EXT3
OW
08
Motion Command
The positioning starts when this parameter is set to 2. The operation will be canceled if
this parameter is set to 0 during EX_POSING command execution.
OB
090
Command Pause
The axis will decelerate to a stop if this bit is set to 1 during execution of EX_POSING
command execution. The positioning will restart if this bit is reset to 0 when a command is
being held.
OB
091
Command Abort
The axis will decelerate to a stop if this bit is set to 1 during EX_POSING command exe-
cution.
OB
094
Latch Zone Enabled
Enable or disable the area where the external positioning signal is valid. If the latch zone
is enabled, the external positioning signal will be ignored if it is input outside of the latch
zone.
0: Disable, 1: Enable
OB
095
Position Reference
Type
Switch the type of position reference.
0: Incremental addition mode, 1: Absolute mode
Set this parameter before setting the Motion Command (OW
08) to 2.
OL
10
Speed Reference
Specify the speed for the positioning. This setting can be changed during operation. The
unit depends on the setting of OW
03.
OL
18
Speed Override
This parameter allows the positioning speed to be changed without changing the Speed
Reference (OL
10). Set the speed as a percentage of the Speed Reference Setting. This
setting can be changed during operation.
Setting range: 0 to 32767 (0% to 327.67%)
Setting unit: 1 = 0.01%
Example: Setting for 50%: 5000
OL
1C
Position Reference
Set the target position for positioning. This setting can be changed during operation. The
meaning of the setting depends on the status of OB
095.
OL
1E
Positioning
Completed Width
Set the width in which to turn ON the Positioning Completed bit (IB
0C1).
OL
2A
Latch Zone Lower
Limit
Set the boundary in the negative direction of the area in which the external positioning
signal is to be valid.