Control Block Diagrams; Pressure Feedback Control 2 (Pn458 = N.1) - YASKAWA SGD7S-R70A20A023F40B Product Manual

3.5

Control Block Diagrams

The control block diagrams for pressure feedback control are provided below.
3.5.1 Pressure Feedback Control 2 (Pn458 = n.1)
SERVOPACK
Pressure
feedback
reference or
torque reference
Reference Filter
Pressure Feedback
Pressure Feedback Control 2
Pressure Feedback Control 2
Methods for Feedback from Pressure Sensor Amplifiers

FT40
Pressure
Feedback Filter
Pn44A
Pressure Feedback
Overflow
Detection Level
Pn44D
Pressure
Pressure Feedback
Feedback
Torque Reference Monitor
Detection Monitor
Pressure
+ -
Feedback
Pressure
Pn45E
Feedback Loop
Deviation
Monitor
Loop Deviation
Overflow Level
Pn447
Pressure feedback control loop
Pressure Feedback Control
One-Parameter Gain Level
Pn4A0
Pressure Feedback
Output Torque Monitor
+
-
Speed control loop
Torque
Reference
Stability Gain
Pn4A7
Stability Integral Time
Pn4A8
Speed Limits
Pn407, Pn480
Pressure Feedback
Moment of Inertia Ratio
Pn4AC
Pressure Feedback
Pressure
Pressure
Polarity Reverse
Feedback
Feedback
Switch
Sensor Gain
Offset
Pn449 Pn440 = n.
Pn448
3.5.1 Pressure Feedback Control 2 (Pn458 = n.1)
The FT40 and FT41 use different methods for feedback from the pressure sensor amplifiers.
Refer to the following diagram for details.
Pressure Feedback
Enable Level
Pn44C
Pressure Feedback Pressure Feedback
Disable Level Enable/Disable Switch
Pn45A
Pn440 = n. X
Torque Control
Current
Pn402, Pn403,
Filter loop
Pn483, Pn484
Pn401
Torque Reference Monitor
Gravity Compensation
Pn440 = n.X
SERVOPACK
CN1
Pressure Feedback
Automatic
Pressure sensor
Adjustment
amplifier
Fn009
X

3.5 Control Block Diagrams

Pressure
sensor amplifier
Motor
Feedback speed conversion value
Encoder
3
3-7