1. FUNCTIONS AND CONFIGURATION
1 - 2
1.2 Function List
The following table lists the functions of this servo. For details of the functions, refer to each section
indicated in the detailed explanation field.
Function Description
Detailed
explanation
Position control mode (P)
(pulse train input)
This servo amplifier is used as a position control servo.
"MR-JE-_C
Servo Amplifier
Instruction
Manual"
Speed control mode (S)
(Analog input/DI input)
This servo amplifier is used as a speed control servo.
Torque control mode (T)
(Analog input)
This servo amplifier is used as a torque control servo.
Position/speed control
switching mode (P/S)
Using an input device, control can be switched between position control and speed
control.
Speed/torque control switch
mode (S/T)
Using an input device, control can be switched between speed control and torque
control.
Torque/position control switch
mode (T/P)
Using an input device, control can be switched between torque control and position
control.
Profile position mode (pp) The servo amplifier operates in the profile position mode.
"MR-JE-_C
Servo Amplifier
Instruction
Manual (Profile
Mode)"
Profile velocity mode (pv) The servo amplifier operates in the profile velocity mode.
Profile torque mode (tq) The servo amplifier operates in the profile torque mode.
Homing mode (hm) The servo amplifier operates in the home position return mode.
Absolute position detection
system
Setting a home position once makes home position return unnecessary at every
power-on.
"MR-JE-_C
Servo Amplifier
Instruction
Manual" /
"MR-JE-_C
Servo Amplifier
Instruction
Manual (Profile
Mode)"
Model adaptive control
This function achieves a high response and stable control following the ideal model.
The two-degrees-of-freedom model adaptive control enables you to set a response
to the command and a response to the disturbance separately.
Additionally, this function can be disabled. To disable this function, refer to section
7.4 of "MR-JE-C_ Servo Amplifier Instruction Manual".
Touch probe function
The touch probe function is available only in the profile mode. When the touch probe
1 signal turns on, the current position latch function will latch the current position.
The latched data can be read with communication commands.
Section 7.4.8
Command pulse selection Command pulse train form can be selected from among three different types.
"MR-JE-_C
Servo Amplifier
Instruction
Manual"
High-resolution encoder
High-resolution encoder of 131072 pulses/rev is used for the encoder of the servo
motor compatible with the MELSERVO-JE series.
Gain switching function
You can switch gains during rotation and during stop, and can use an
input device to switch gains during operation.
"MR-JE-_C
Servo Amplifier
Instruction
Manual"
Advanced vibration
suppression control II
This function suppresses vibration or residual vibration at an arm end.
Machine resonance
suppression filter
This filter function (notch filter) decreases the gain of the specific frequency to
suppress the resonance of the mechanical system.
Shaft resonance suppression
filter
When a load is mounted to the servo motor shaft, resonance by shaft torsion during
driving may generate a mechanical vibration of high frequency. The shaft resonance
suppression filter suppresses the vibration.
Adaptive filter II
The servo amplifier detects mechanical resonance and sets filter characteristics
automatically to suppress mechanical vibration.
Low-pass filter
Suppresses high-frequency resonance which occurs as the servo system response is
increased.
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