Yaskawa MP940 - Manual (Page 423)

11.2 Control Modes
11-21
11
Fig 11.12 Block Diagram of Electronic Cam Control Loop
The electronic cam control loop is processed in the SVA Module. Therefore, the user can
easily control the electronic cam simply by selecting the phase control mode on the CPU
Module and providing the required parameters for the SVA Module.
SGDH
OWCO15
PI
OLCO16
NREF
PHBIAS
M
PG
+
±
ε
+ -
CPOS
ILC002
APOS
ILC008
X
θ
S
θ
CPU Module
One scan change
calculation
Position reference
generation
Position
reference
SVA Module
Integration
Speed
reference
Counter
Speed
control
When Phase Reference Generation Operation Disable (bit 7 of OWC000)
turns ON, the integral circuit is cut.