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1. FUNCTIONS AND CONFIGURATION
1.2 Function List
The following table lists the functions of the MR-J2-03A5. For details of the functions, refer to the
corresponding chapters and sections.
Function Description
(Note)
Control Mode
Refer To
Position control mode MR-J2-03A5 is used as position control servo. P
Section 3.1.1
Section 3.4.1
Section 4.2.2
Speed control mode MR-J2-03A5 is used as speed control servo. S
Section 3.1.2
Section 3.4.2
Section 4.2.3
Torque control mode MR-J2-03A5 is used as torque control servo. T
Section 3.1.3
Section 3.4.3
Section 4.2.4
Position/speed control
change mode
Using external input signal, control can be switched
between position control and speed control.
P/S Section 3.4.4
Speed/torque control change
mode
Using external input signal, control can be switched
between speed control and torque control.
S/T Section 3.4.5
Torque/position control
change mode
Using external input signal, control can be switched
between torque control and position control.
T/P Section 3.4.6
Slight vibration suppression
control
Suppresses vibration of ±1 pulse produced at a servo motor
stop.
P Section 7.5
Electronic gear Input pulses can be multiplied by 1/50 to 50. P Parameters No. 3, 4
Real-time auto tuning
Automatically adjusts the gain to optimum value if load
applied to the servo motor shaft varies.
P, S
Section 7.3
Parameter No. 2
Smoothing Speed can be increased smoothly in response to input pulse. P Parameter No. 7
S-pattern acceleration/
deceleration time constant
Speed can be increased and decreased smoothly. S Parameter No. 13
Alarm history clear Alarm history is cleared. P, S, T Parameter No. 16
Restart after instantaneous
power failure
If the input power supply voltage had reduced to cause an
alarm but has returned to normal, the servo motor can be
restarted by merely switching on the start signal.
S Parameter No. 20
Command pulse selection
Command pulse train form can be selected from among
four different types.
P Parameter No. 21
Input signal selection
Forward rotation start, reverse rotation start, servo on and
other input signals can be assigned to any pins.
P, S, T
Parameters No. 43 to
48
Torque limit Servo motor-generated torque can be limited to any value. P, S
Section 3.4.1 (2)
Parameter No. 28
Speed limit Servo motor speed can be limited to any value. T
Section 3.4.3 (3)
Parameter No. 8 to 10
Status display
Servo status is shown on the 4-digit, 7-segment LED
display
P, S, T Section 6.2
External I/O display
ON/OFF statuses of external I/O signals are shown on the
display.
P, S, T Section 6.6
Output signal forced output
Output signal can be forced on/off independently of the
servo status.
Use this function for output signal wiring check, etc.
P, S, T Section 6.7
Automatic VC offset
Voltage is automatically offset to stop the servo motor if it
does not come to a stop at the analog speed command (VC)
or analog speed limit (VLA) of 0V.
S, T Section 6.3
Test operation mode
Servo motor can be run from the operation section of the
servo amplifier without the start signal entered.
P, S, T Section 6.8