EtherCAT Phase Correction Control with XPM_PHASING

The XPM_PHASING function block is used to apply a position adjustment to a sub-axis during synchronized movement.

  • The sub-axis’ position will be adjusted by the amount entered in the PHASE_VAL value in reference to the master position at the time the function block is executed.

  • The phase correction is applied with the velocity, acceleration and deceleration values entered in the function block.

  • The sub-axis must be in synchronized motion to use XPM_PHASING.

  • This function block is useful for print mark registration and web tension applications.

The examples in this topic can be found in OnlineHelp_ECAT_Example.

Element Name Element Type Desscription
REQ Input Edge detected request to execute the function block.
BASE Input Base number of the motion controller. Set 0 to the Base number.
SLOT Input Slot number of the motion controller. Set to the slot number of the XBF-PN04B or XBF-PN08B module.
AXIS Input

Axis to apply the phase correction.

  • XBF-PN08B: 1~8

  • XBF-PN04B: 1~4
MST_AXIS Input

Set the main axis of the phase correction.

  • XBF-PN08B: 1~8

  • XBF-PN04B: 1~4

  • Encoder1: 9
PHASE_VAL Input Phase correction value. If using engineering units, make sure values are scaled correctly.
VELOCITY Input Speed used to apply phase correction movement. If using engineering unit, make sure values are scaled correctly.
ACC_TIME Input Acceleration time of the phase correction movement. (0 to 2,147,483,647 ms)
DEC_TIME Input Deceleration time of the phase correction movement. (0 to 2,147,483,647 ms)
DONE Output Status that function block is done.
STAT Output Current status of the function block. Non-zero numbers will be an error or warning.

Scan Program LP616_XPM_PHASING_Example is used for the following examples.

  • The XPM_SSSD function block is used to put Axis 1 into synchronized motion.

  • Axis 4 is a virtual Axis that is used as the main axis.

  • Axis 1 will have a phase correction to its position.

Monitoring XPM_PHASING Example

XPM_PHASING XY Trend

 

 

 

 

 

 

 

LP616