Specifications

7
MITSUBISHI ELECTRI
C
MELSERVO MR-J2S
Real-time auto-tuning and high
responsiveness
With the advanced real-time auto-tuning,
the unit is automatically adjusted to the
optimal setting without any need for the
gain adjustment unique to servomotors.
The sensitivity of the real-time auto-
tuning can be changed in accordance with
machine rigidity, enabling the MR-J2-Super
to accommodate an even wider range of
machinery (response setting selection).
Model adaptive control provides the
realisation of a highly responsive and
stable system.
Even when acceleration/deceleration
torque is short or friction on the vertical
axis is large, the load inertia moment is
adjusted to the optimum value automati
-
cally.
Separate wiring for the control power
supply
Wiring of the control power supply is sepa
-
rated from that for the main circuit power
supply. When an alarm is triggered, the
main circuit power supply can be turned
off and the control power supply left on,
making it possible to confirm the alarm
message and operate the unit with confi-
dence.
Adaptive vibration suppression
control function
All servo systems performance are
restricted by machine resonance. This
adaptive vibration suppression control
function breaks this barrier to give further
stability at higher response.
Machine resonance suppression filter
Two points can be set to match the
machine resonating point. This filter can
be combined with the adaptive vibration
suppression control function as well,
however, only the point can be set for the
machine resonance suppression filter at
that time.
Control Functions with Enhanced Tuning Technology
30
20
10
0
05
1
0
1
5
15
30
20
10
0
0510
Start of adaptive vibration suppression control function
Servo resonance
ON
Time
Motor speed
(Machine resonance characteristics)
Gain
Gain
(Machine resonance suppression filter characteristics)
Frequency
Frequency
Anti-resonating
point
Resonating
point
Load inertia moment ratio
Load inertia moment ratio
Start
Start
Time (s)
Time (s)
HC-MFS13 advanced real-time auto-tuning (unbalanced load, high friction)
HC-MF13 previous auto-tuning (unbalanced load, high friction)
Estimated value
Actual load inertia moment ratio
Estimated value
Actual load inertia moment ratio
Machine resonance suppression filter is set
automatically as the sensor searches for the
resonating point.
SYSTEM DESCRIPTION
BASICS