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System philosophy
HARDWARE REFERENCE MANUAL
41
Revision 5.0
MECHATROLINK-II speed ATYPE=41
fig. 30
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.
0x40000000 means maximum speed of the servomotor. This is the
recommended setting.
MECHATROLINK-II torque ATYPE=42
fig. 31
With
SERVO = ON
, the torque loop is closed in the TJ2-MC__. The torque
reference in the Servo Drive depends on the
FE
and the gain.
With
SERVO = OFF
, the torque reference is sent directly via the
T_REF
command. 0x40000000 is the maximum torque of the servomotor.
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
SERVO
+
_
M
E
SERVO = OFF
SERVO = OFF
Position loop
Demanded
position
Measured
position
Profile generator
Following
error
TJ2-MC__
Torque Loop
Torque
command
Torque
command
TJ1-ML__
TJ2-ECT__
TJ2-KS02
Note
To monitor the torque in the servo in
DRIVE_MONITOR
, set
DRIVE_CONTROL=11
.