Mitsubishi Electric M800W Series, Connection And Set Up Manual

Page: 627 / 702

M800W/M80W Series Connection and Setup Manual
33 Synchronous Control and Multiple-axis Synchronization Control
588 IB-1501268-K
33.2 Multiple-axis Synchronization Control
Refer to "Multiple-Axis Synchronization Control Specifications Manual" (BNP-C3072-339) for details of parameter
settings, operations, etc.
33.2.1 Outline
Multiple-axis synchronization control is the function that enables multiple slave axes to be synchronized with commands
to the master axis. This function can be used, for example, in multi-head machine configurations.
The axis that serves as the reference of synchronization is called "master axis", whereas the axis that follows the master
axis is called "slave axis".
- The synchronized axes are controlled with travel commands to the master axis.
- For one master axis, two or more slave axes can be set.
- Up to three combinations of master axis and slave axes can be set for all the part systems.
Configuration example of multiple-axis synchronization control
The "compensation" in the figure indicates the pitch error compensation, the thermal expansion compensation, the
backlash compensation and the external machine coordinate compensation. Even under the multiple-axis
synchronization control, the compensation is performed independently for each axis.
Perform position alignment for the master axis and each slave axis at the setup of the machine.
Also, position alignment between synchronous axes is required when power is turned ON. Perform automatic or
manual reference position return, and start synchronous operation after and performing position alignment.
Refer to "25. Setting the Position Detection System" for details of position alignment.
33.2.2 Synchronous Operation and Independent Operation
Independent operation is unavailable for multiple-axis synchronization control.
Make sure to include the master axis when configuring the setting of "synchronous control operation method" signal.
Synchronous operation
This method allows both master and slave axes to move synchronously by the movement commands to the master
axis.
This method is valid in both automatic and manual operations.
The synchronous operation is selected and cancelled when all axis components are in commanded positions.
Independent operation
Independent operation is unavailable for multiple-axis synchronization control.
CNC
M
M
M
・
・
・
・
・
・
Position
command
Compensation
Compensation
Compensation
Drive unit
Drive unit
Drive unit
Master axis
Encoder
Encoder
Encoder
Slave axis 1
Slave axis n