3.4 Changing from Torque Control to Pressure Feedback Control
3.4.1 Mode 2 Operation
3-6
3.4
Changing from Torque Control to Pressure Feedback Control
You can select from two modes to change from torque control to pressure feedback control:
mode 1 and mode 2. The mode is set in Pn458 = n.
X (Pressure Feedback Control Mode
Selection Switch).
However, if the pressure feedback type is set to pressure feedback control 2 (Pn458 =
n.
1
), the setting in Pn458 = n.
X is ignored and mode 2 operation is used.
3.4.1
Mode 2 Operation
In mode 2, changing from torque control to pressure feedback control is performed according
to Pn44C (Pressure Feedback Enable Level) and Pn45A (Pressure Feedback Disable Level).
Note: 1. The area shaded in gray in the above diagram is the area in which pressure feedback control is enabled.
2. If chattering occurs in the pressure, mode 2 can be selected for pressure feedback control to enable stably
changing to pressure feedback control.
3.4.2
Mode 1 Operation
In mode 1, changing from torque control to pressure feedback control is performed according
to Pn44C (Pressure Feedback Enable Level).
Note: The area shaded in gray in the above diagram is the area in which pressure feedback control is enabled.
Parameter
Meaning
When Enabled
Classification
Pn458
n.
0
Set mode 1.
After restart
Setup
n.
1
(default setting)
Set mode 2.
Pressure Feedback Enable Level
Pn44C
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
0 to 10,000
0.01%
1000
Immediately
Setup
Pressure Feedback Disable Level
Pn45A
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
0 to 10,000
0.01%
1000
Immediately
Setup
Torque
Torque
Time
Pre
ss
ure
Pre
ss
ure feedback control
s
tarting pre
ss
ure
(Pre
ss
ure Feedback Enable Level (Pn44C))
Pre
ss
ure Feedback Di
s
able Level (Pn45A)
Pre
ss
ing pre
ss
ure
0
Torque control
Pre
ss
ure feedback control
Po
s
ition control
Control mode
Pn44C
Pressure Feedback Enable Level
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
0 to 10,000
0.01%
1000
Immediately
Setup
Torque
Time
Pre
ss
ure
Pre
ss
ure feedback control
s
tarting pre
ss
ure
(Pre
ss
ure Feedback Enable Level)
Pre
ss
ing pre
ss
ure
0
Torque control
Pre
ss
ure feedback control
Po
s
ition control
Control mode
Summary of Contents for SERVOPACK Sigma 7 Series
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