
14.3 Position Control Modes
14.3.2 Interpolated Position Mode
14-9
14
CiA402 Drive Pr
ofile
14.3.2
Interpolated Position Mode
The Interpolated Position Mode is used to control multiple coordinated axes or to control a sin-
gle axis that requires time interpolation of the set point data. There are the following two sub-
modes for the Interpolated Position Mode.
Interpolation submode select
(60C0h) is used to change the submode. Refer to the following
section for details.
15.10 Interpolated Position Mode
Mode 1
This submode normally uses a time (communications) synchronization mechanism to synchro-
nize the Servo Drives. The Interpolation Time Period defines the update cycle of the Interpola-
tion Data (i.e., the interpolation position). The interpolation processing in the SERVOPACK is
based on this setting. The Interpolation Data is interpreted as an absolute value.
The following figure shows the block diagram for mode 1.
Related Objects
Interpolated Position Mode
Number of Data
Number of Profiles
Mode 1
No position reference filter
1
1
Position reference filter
Mode 2
No position reference filter
1 to 254
2
Position reference filter
Position
limit function
Position
user unit
(2701h: 1, 2701h: 2)
Software position limit (607Dh)
Acceleration
user unit
(2703h: 1, 2703h: 2)
Quick stop deceleration (6085h)
(or profile deceleration (6084h))
[Pos unit]
[Acc unit]
[inc]
Quick stop option code (605Ah)
Controlword (6040h)
+
+
-
-
Interpolation data (60C1h)
Input
buffer
Interpolation time
Period (60C2h)
Motor
Encoder
104 [inc/s2]
Position
trajectory
generator
Position
demand
internal
value
(60FCh)
Position actual value (6064h)
Velocity actual value (606Ch)
Torque actual value (6077h)
Position window (6067h)
Target reached in statusword
(6041h)
Following error in
statusword (6041h)
Following error window (6065h)
Following error actual value (60F4h)
Following error
window
comparator
Position reached
window
comparator
Position window
time (6068h)
Following window
time out (6066h)
Position demand
value (6062h)
Position
user unit
(2701h: 1, 2701h: 2)
Velocity
user unit
(2702h: 1, 2702h: 2)
Position
user unit
(2701h: 1, 2701h: 2)
Output of position
limit function
Position actual
internal value (6063h)
Position
control
Speed
control
Torque
control
Multiplier
Multiplier
Multiplier
Torque
user unit
(2704h: 2, 2704h: 1)
Index
Subindex
Name
Access
PDO
Mapping
Unit
Data
Type
6040h
0
Controlword
RW
Yes
−
UINT
6041h
0
Statusword
RO
Yes
−
UINT
60C1h
1
Interpolation data record
RW
Yes
Pos unit
DINT
Continued on next page.