Yaskawa MP940 Reference Manual - Manual (Page 418)

MotionSuite™ MP940 Machine Controller Reference Manual Control Mode
11-21
The following shows a block diagram of the phase control loop.
A block diagram of the electronic camming control loop appears below.
The processing of electronic camming control loops inside the SVA module,
allows the user to easily direct the electronic cam control simply by selecting
phase control mode on the CPU module side, and sending the necessary
parameters to the SVA module.
SGDH
Speed
Control
OWCO15
Integral
PI
Counter
OLCO16
NREF
PHBIAS
M
PG
+
±
ε
+ -
+
+
CPOS
ILC002
APOS
ILC008
To other
machine
Base Speed
Reference Setting
Phase
Compensation
Setting
SVA Module CPU Module
Speed
Reference
SGDH
Speed
Control
OWCO15
Integral
PI
Counter
OLCO16
NREF
PHBIAS
M
PG
+
±
ε
+ -
CPOS
ILC002
APOS
ILC008
SVA Module
X
θ
Position
Reference
Generation
S
Position
Reference
1 Scan Variance Calculation
CPU Module
θ
The integral circuit is cut when Disable Phase Reference Generator Calculation (bit 7 of OWC000) is ON.
Speed
Reference