System philosophy
HARDWARE REFERENCE MANUAL
45
Revision 5.0
EtherCAT Cyclic Synchronous Position (CSP) ATYPE=65
fig. 36
With
SERVO = ON
, the position loop is closed in the Servo Drive. Gain
settings in the TJ2-MC__ have no effect. The position reference is sent to
the Servo Drive.
EtherCAT Cyclic Synchronous Speed (CSV) ATYPE=66
fig. 37
With
SERVO = ON
, the speed loop is closed in the TJ2-MC__.
Speed reference is sent to the Servo Drive. This setting is not
recommended, since there is one cycle delay in the loop (DPOS(n) is
compared with MPOS(n-1)).
With
SERVO = OFF
, the speed reference is sent via
S_REF
command and
is specified in units/s.This is the recommended setting.
Profile generator
M
E
TJ2-MC__
TJ1-ML__
TJ2-ECT__
TJ2-KS02
SERVO
+
_
SERVO = OFF
SERVO = OFF
Trajexia
Position Loop is
deactivated
(Gains are not
used!)
Position
command
Demanded
position
Measured
position
Position loop
Following
error
Speed
command
Position Loop
Speed Loop
Torque Loop
Note
Although
MPOS
and
FE
are updated, the real value is the value in
the Servo Drive. The real Following Error can be monitored by the
DRIVE_MONITOR
parameter by setting
DRIVE_CONTROL = 5
.
Note
The EtherCAT position
ATYPE = 65
is the recommended setting to
obtain a higher performance of the servo motor.
SERVO
+
_
M
E
SERVO = OFF
SERVO = OFF
TJ2-MC__
Position loop
Demanded
position
Measured
position
Profile generator
Following
error
Speed
command
Speed
command
Speed Loop
Torque Loop
TJ1-ML__
TJ2-ECT__
TJ2-KS02