13. USING A LINEAR SERVO MOTOR
13 - 15
(2) Set the linear servo motor series and linear servo motor type.
To use the linear servo motor, set the linear servo motor series and linear servo motor type with parameter
No. PA17 (Linear servo motor series setting) and No. PA18 (Linear servo motor type setting). (Refer to
section 13.6.2.)
(3) Settings of the linear encoder direction and the linear servo motor direction
Set the positive direction of linear servo motor to match with the increase direction of linear encoder
feedback using the first digit (Encoder pulse count polarity selection) of the parameter No.PC27.
Encoder pulse count polarity selection
0: Linear servo motor positive direction and linear encoder increase direction
1: Linear servo motor positive direction and linear encoder decrease direction
Parameter No.PC27
(a) Parameter setting method
1) Confirm the positive direction of linear servo motor the relationship of the moving direction of linear
servo motor to commands is determined by the setting of the parameter No.PA14 as follows.
Moving direction of linear servo motor
Parameter No.PA14
setting value
Address increase command
Address decrease command
0
Positive direction
Negative direction
1
Negative direction
Positive direction
The positive/negative directions of the linear servo motor are as shown below.
Positive direction
Secondary side
Positive direction
Negative direction
Primary side
Primary side
Positive direction
Negative direction
LM-H2 series
Secondary side
Table
Secondary side
Primary side
Negative direction
LM-K2 series
LM-U2 series
2) Confirm the increase direction of linear encoder.
3) If the positive direction of the linear servo motor matches with the increase direction of linear encoder,
set the parameter No.PC27 to "
0". If not, set the parameter to "
1".
(b) Confirmation method
Confirm the positive direction of linear servo motor and the increase direction of linear encoder using the
following procedure.
1) Move the linear servo motor manually to the positive direction in the servo off status.
2) Confirm the motor speed (positive and negative) at that time using MR Configurator.
Summary of Contents for MELSERVO-J3W Series
Page 17: ...8 MEMO ...
Page 27: ...1 FUNCTIONS AND CONFIGURATION 1 10 MEMO ...
Page 87: ...4 STARTUP 4 14 MEMO ...
Page 117: ...5 PARAMETERS 5 30 MEMO ...
Page 129: ...6 GENERAL GAIN ADJUSTMENT 6 12 MEMO ...
Page 185: ...10 CHARACTERISTICS 10 8 MEMO ...
Page 241: ...11 OPTIONS AND AUXILIARY EQUIPMENT 11 56 MEMO ...
Page 274: ...13 USING A LINEAR SERVO MOTOR 13 25 1 2 3 4 ...