User manual of EL8-EC***F AC Servo
224
5.7.2 Cyclic Synchronous Torque Mode (CST)
CST Block Diagram
Torque
Loop
Motor
S
M
U
L
Target torque
(6071h)
Trajectory planning output
C
S
T
PT
Torque feedforward(60B2h)
+
+
Amplifer
Actual torque(6077h)
Actual velocity feedback(606Ch)
Actual position feedback(6064h)
Polarity
(2071h+2073h)
Related Objects
Basic object
PDO
Index+Sub-Index
Name
Data
Type
Access Unit
Remarks
(RXPDO)
6040-00h
Control word
U16
RW
—
Required
6071-00h
Target torque
I16
RW
Uint
Required
6087-00h
Torque feed-forward
U32
RW
0.1%/S
Optional
(TXPDO)
6041-00h
Status word
U16
RO
—
Required
6064-00h
Actual position feedback
I32
RO
Uint
Optional
606C-00h
Actual velocity feedback
I32
RO
Uint /S
Optional
60F4-00h
Actual following error
I32
RO
Uint
Optional
6077-00h
Actual torque
I16
RO
0.1%
Required
Extended object
Index+Sub-Index
Name
Data
Type
Access
Unit
603F-00h
Error code
U16
RO
—
6060-00h
Operation mode
I8
RW
—
6061-00h
Displayed operation
mode
I8
RO
—
6074-00h
Internal command
torque
I16
RO
0.1%
605A-00h
Quick stop option
I16
RW
—
6080-00h
Maximum motor
velocity
U32
RW
Uint /S