Yaskawa MP920 Motion Module - Manual (Page 41)

2.2 Control Modes
2-15
2
2.2.4 Phase Control Mode
„ Overview
This mode is used to rotate the motor according to the specified speed reference, and at the
same time to strictly control the number of rotations.
Phase control uses multiple axes, ensuring that no deviation occurs in the angle of rotation
(phase) for the motors and enabling endless rotation for printing and other machines being
controlled.
Electronic shafts and electronic cams can thus be used in the servomotors of complex
machine configurations. Phase alignment and synchronous operation, as well as ratio opera-
tion and cam variable speed operation have all been replaced by software.
Fig. 2.5 Electronic Cam and Electronic Shaft Illustration
The phase control mode is available only with the SVA-01A and SVA-02A Modules. It cannot be used
with the SVB-01 and PO-01 Modules.
M
M M M
MP920
Using a machine to perform conventional
synchronous operation
(Line shaft and cam system) Using the MP920 to perform synchronous
operation (Electronic shaft and electronic
cam system)
Controller
Driver
Driver
Gear
No.1 roll No.2 roll Cam machine No.1 roll No.2 roll Cam machine
Gear Gear
Cam
IMPORTANT