13.3 Position Control Modes
13.3.2 Interpolated Position Mode
13-9
13
CiA402 Drive Pr
ofile
13.3.2
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
(60C0 hex) is used to change the submode. Refer to the following
section for details.
14.10 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
(2701 hex: 1, 2701 hex: 2)
Software position limit (607D hex)
Acceleration
user unit
(2703 hex: 1, 2703 hex: 2)
Quick stop deceleration (6085 hex)
(or profile deceleration (6084 hex))
[Pos unit]
[Acc unit]
[inc]
Quick stop option code (605A hex)
Controlword (6040 hex)
+
+
-
-
Interpolation data (60C1 hex)
Input
buffer
Interpolation time
Period (60C2 hex)
Motor
Encoder
104 [inc/s2]
Position
trajectory
generator
Position
demand
internal
value
(60FC hex)
Position actual value (6064 hex)
Velocity actual value (606C hex)
Torque actual value (6077 hex)
Position window (6067 hex)
Target reached in statusword
(6041 hex)
Following error in
statusword (6041 hex)
Following error window (6065 hex)
Following error actual value (60F4 hex)
Following error
window
comparator
Position reached
window
comparator
Position window
time (6068 hex)
Following window
time out (6066 hex)
Position demand
value (6062 hex)
Position
user unit
(2701 hex: 1, 2701 hex: 2)
Velocity
user unit
(2702 hex: 1, 2702 hex: 2)
Position
user unit
(2701 hex: 1, 2701 hex: 2)
Output of position
limit function
Position actual
internal value (6063 hex)
Position
control
Speed
control
Torque
control
Multiplier
Multiplier
Multiplier
Torque
user unit
(2704 hex: 2, 2704 hex: 1)
Index
Subindex
Name
Access
PDO
Mapping
Unit
Data
Type
6040 hex
0
Controlword
RW
Yes
−
UINT
6041 hex
0
Statusword
RO
Yes
−
UINT
60C1 hex
1
Interpolation data record
RW
Yes
Pos unit
DINT
Continued on next page.