
3.5 Control Block Diagrams
3.5.1 Pressure Feedback Control 2 (Pn458 = n.
1
)
3-7
3
Pr
essur
e Feedback Contr
ol
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
)
Methods for Feedback from Pressure Sensor Amplifiers
FT40
S
peed control loop
Pre
ss
ure feedback control loop
Pre
ss
ure Feedback Control
One-Parameter Gain Level
Pn4A0
Pre
ss
ure
feedback
reference or
torque reference
Torque
Reference
Filter
Pn401
Torque Control
Pn402, Pn40
3
,
Pn48
3
, Pn484
Current
loop
S
peed Limit
s
Pn407, Pn480
Pre
ss
ure Feedback
Enable Level
Pn44C
Pre
ss
ure Feedback
Di
s
able Level
Pn45A
Pre
ss
ure Feedback
Overflow
Detection Level
Pn44D
Pre
ss
ure Feedback
Loop Deviation
Overflow Level
Pn447
Pre
ss
ure Feedback
Enable/Di
s
able
S
witch
Pn440 = n.
X
+
+
Pre
ss
ure
Feedback
Detection Monitor
Pre
ss
ure Feedback
Output Torque Monitor
Pre
ss
ure
Feedback Loop
Deviation
Monitor
Torque Reference Monitor
Feedback
s
peed conver
s
ion value
Pre
ss
ure Feedback Control 2
S
tability Gain
Pn4A7
Pre
ss
ure Feedback Control 2
S
tability Integral Time
Pn4A8
Pre
ss
ure Feedback
Moment of Inertia Ratio
Pn4AC
-
Gravity Compen
s
ation
Pn440 = n.X
Pre
ss
ure
Feedback
Reference Filter
Pn45E
Pre
ss
ure Feedback
Torque Reference Monitor
S
ERVOPACK
-
Motor
Pre
ss
ure
s
en
s
or amplifier
Encoder
The FT40 and FT41 u
s
e different method
s
for feedback from the pre
ss
ure
s
en
s
or amplifier
s
.
Refer to the following diagram for detail
s
.
Pre
ss
ure
Feedback Filter
Pn44A
Pre
ss
ure
Feedback
S
en
s
or Gain
Pn449
Pre
ss
ure
Feedback
Off
s
et
Pn448
Pre
ss
ure Feedback
Polarity Rever
s
e
S
witch
Pn440 = n.
X
Pre
ss
ure Feedback
Automatic
Adju
s
tment
Fn009
CN1
S
ERVOPACK
Pre
ss
ure
s
en
s
or
amplifier
Summary of Contents for SERVOPACK Sigma 7 Series
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