Mitsubishi Electric MR-J4-_GF, Инструкция по эксплуатации

Страница: 97 / 274

6. SERVO MOTOR DRIVING
6 - 38
(c) Operation
Selecting the point table with "Target point table" and switching on "Controlword bit 4 (New set-
point)" starts positioning to the position data at the set speed, acceleration time constant and
deceleration time constant.
Item Object to be used Setting
Point table mode (pt)
selection
Modes of operation Set "-101".
Point table selection Target point table Set the point table No. to use.
Start Controlword Switch on "Controlword bit 4 (New set-point)".
(2) Incremental value command method
POINT
The incremental value command method ([Pr. PT01] = _ _ _ 1) is not available
in the absolute position detection system. When using the absolute position
detection system, select the absolute value command method ([Pr. PT01] = _ _
_ 0).
(a) Point table
Set the point table values using MR Configurator2 or "Point table 001 to 255".
Set the position data, servo motor speed, acceleration time constant, deceleration time constant,
dwell time, and auxiliary function to the point table.
When you set a value outside the setting range to the point table, the setting value will be clamped
with the maximum or minimum value. If the value becomes out of the range because of the changes
in the command unit or the connected servo motor, [AL. 37] will occur.
Item Setting range Unit Description
Position data 0 to 999999 (Note 1)
×10 STM μ m
×10 (STM-4) inch
pulse
Set the travel distance.
The unit can be changed by [Pr. PT03] (Feed length multiplication).
Servo motor
speed 0 to permissible
speed
0.01 r/min
0.01 mm/s
(Note 2)
Set the command speed of the servo motor for execution of positioning.
The setting value must be equal to or less than the instantaneous permissible
speed of the servo motor used.
Acceleration
time constant
0 to 20000 ms Set a time for the servo motor to reach the rated speed.
Deceleration
time constant
0 to 20000 ms Set a time for the servo motor to stop from the rated speed.
Dwell 0 to 20000 ms
Set the dwell.
To disable the dwell, set "0" to the auxiliary function.
To perform a continuous operation, set "1", "8" or "9" to the auxiliary function
and "0" to the dwell.
When the dwell is set, a positioning of the next point table will be started after
the positioning of the selected data is completed, and the set dwell has
elapsed.
Auxiliary
function
0, 1, 8, or 9
Set the auxiliary function.
0: Automatic operation for a selected point table is performed.
1: Automatic operation for the next point table is performed.
8: Automatic operation for a point table selected at start-up is performed.
9: Automatic operation for point table No. 1 is performed.
Setting "1" to point table No. 255 results in an error.
Refer to section 6.2.6 (1) (b) for details.
Note 1. When the unit of the position data is μ m or inch, the location of the decimal point is changed according to the STM setting.
2. The unit will be mm/s in the linear servo motor control mode.