Design; System Designing Procedure - Mitsubishi Electric Melsec-Q172DCPU User Manual

3 DESIGN

3. DESIGN

3.1 System Designing Procedure

System designing procedure is shown below.
Motion control system design
Select the Motion CPU module according to number of control
axes.
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).
Select the number of Q172DLX's and design according to each
axis control system and whether servo external signals are
required or not.
When there is mechanical home position and 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 Q173DPX, Q172DEX and design according to whether
manual pulse generators and synchronous encoders are
required or not.
Select interrupt module QI60 according to whether interrupt
input are required or not.
Select I/O modules/intelligent function modules according to the
specifications of the external equipment to be controlled.
Select the main base unit, extension base units, extension
power supply module and extension cables, and make I/O
assignment according to necessary number of Q172DLXs,
Q172DEXs, Q173DPXs, I/O modules, intelligent function
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.
Set the servo amplifier connection by SSCNET (/H) and axis
numbers (dno.) and axis No..
Select SSCNET /H head module and I/O modules/intelligent
function modules according to the specifications of the external
equipment to be controlled.
Select the head module connection by SSCNET /H, station
number and axis No.
Refer to section 2.5.4
Refer to section 2.5.5
Refer to section 2.5.6
Refer to MELSEC-Q
series manual.
Refer to section 2.5.4
Refer to section 2.5.5
Refer to section 2.5.6
Refer to MELSEC-Q
series manual.
Refer to the servo
amplifier manual.
Refer to section 2.5.9
Refer to MELSEC-L
series SSCNET /H
head module manual.
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