4 - 43
4. OPERATION
4.6 Serial communication operation
The RS-422 or RS-232C communication function may be used to operate the servo amplifier from a
command device (controller) such as a personal computer. Positioning operation can be performed with
the positioning operation/position specified by selection of the point tables. Note that the RS-422 and RS-
232C communication functions cannot be used at the same time.
This section provides a data transfer procedure. Refer to chapter 15 for full information on the connection
and transferred data between the controller and servo amplifier.
4.6.1 Positioning operation in accordanc e with point tables
By selecting the point table No. and switchin g on the forward rotation start (ST1) or reverse rotatio n start
(ST2) using the communication function, positioning operation in accordance with point tables can be
started.
(1) Selection of point tables
Using the device forced output from the controller (command [9][2], data No. [6][0]), choose point
tables from among No.1 to 31.
(2) Timing chart
Transmission
data
Servo motor
speed
Point table No. 2
3ms
Point table No. 1 P oint table No. 3
1) 4) 5) 2) 4) 5) 3) 4) 5)
5ms or more 5ms or more 5ms or more
No. Transmission data Command Data No.
1) Point table No.2 selection [9] [2] [6] [0]
2) Point table No.1 selection [9] [2] [6] [0]
3) Point table No.3 selection [9] [2] [6] [0]
4) Forward rotation start (ST1) ON [9] [2] [6] [0]
5) Forward rotation start (ST1) OFF [9] [2] [6] [0]