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3 DESIGN
3. DESIGN
3.1 System Designing Procedure
Design the system which uses the Multiple CPU system in the following procedure.
Refer to section 2.4.4
Refer to section 2.4.5
Refer to section 2.4.6
Motion control system design
Select the Motion CPU module according to number of control axes
and whether teaching unit is required or not.
Select the motion functions to be installed according to the machinery
and equipment to be controlled (selection of the programming software
packages according to the operating system software).
Refer to section 2.4.5
Refer to section 2.4.6
Refer to MELSEC-Q
series manual.
Refer to section 2.4.9
Select the number of Q172LX's and design according to the each
axis control system and whether servo external signals are required
or not.
When there is mechanical home position and dog type home position
return is made: Proximity dog required
For speed control: Speed-position switching control signal required
When overrun prevention is necessary: Stroke limit required
When each axis stop is necessary: STOP signal required
Select Q173PX, Q172EX and design according to whether manual
pulse generators and synchronous encoders are required or not.
Select I/O modules according to the specifications of the external
equipment to be controlled.
Select interrupt module QI60 according to whether interrupt input are
required or not.
Select the CPU base unit, extension base units, extension power
supply module and extension cables, and make I/O assignment
according to necessary number of Q172LX's, Q172EX's, Q173PX's,
QX 's, QY P's and the number of I/O modules.
Select the servo amplifier and servo motor according to the motor
capacity and number of revolution from the machine mechanism to be
controlled each axis.
Refer to the servo
amplifier manual.
Set the servo amplifier connection by SSCNET and axis numbers
(dno.) and axis No.
Refer to section 2.4.4
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