APPENDICES

Appendix 9 Comparisons with conventional positioning modules Appendix 9.1 Comparisons with A1SD71S2 model

MELSEC-Q

The following shows comparisons with the conventional positioning module

A1SD71S2, centered on the QD75 specifications.

 

 

Model

QD75P1

 

QD75P2

 

QD75P4

A1SD71S2

Item

 

 

QD75D1

 

QD75D2

 

QD75D4

 

 

 

 

 

No. of control axes

1

 

2

 

4

2

 

 

 

 

 

 

 

 

 

No. of positioning data items

 

 

600/axis

 

400/axis

 

2-axis linear interpolation

 

 

 

 

 

 

Interpolation

3-axis linear interpolation

 

 

 

 

 

 

functions

4-axis linear interpolation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2-axis circular interpolation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Position control

 

 

 

 

 

 

 

Speed control

 

 

 

 

 

 

Positioning

Speed-position switching

 

 

(INC/ABS mode)

 

(Only INC mode)

systems

control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Position-speed switching

 

 

 

 

 

 

 

control

 

 

 

 

 

 

Machine OPR function (OPR method)

 

 

(6 types)

 

(3 types)

JOG operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inching operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual pulse generator function

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Acceleration/

 

Automatic trapezoidal

 

 

 

 

 

 

 

acceleration/deceleration

 

 

 

 

 

 

deceleration

 

 

 

 

 

 

 

 

 

S-pattern

 

 

 

 

 

 

processing

 

 

 

 

 

 

 

 

acceleration/deceleration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Acceleration/deceleration time

Acceleration time and deceleration time setting

Acceleration/deceleration time

possible (4 patterns each)

same

 

 

 

Compensation

Electronic gears, backlash compensation

Backlash compensation

Error display

 

 

 

 

Error LED

 

Error LED

History data storage

Provided (3 types, 16 items/axis)

None

(Start, error, warning)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data storage destination

 

 

Flash ROM

 

Buffer memory

 

(battery-less backup)

 

(battery backup)

 

 

 

 

 

No. of occupied I/O points

 

32

 

 

48

No. of module occupied slots

 

1

 

 

2

 

 

 

 

 

 

 

 

Peripheral

AD71TU

 

 

 

 

 

 

AD75TU

 

 

 

 

 

 

devices

 

 

 

 

 

 

(data setting,

A6GPP, A6PHP

 

 

 

 

 

 

etc.)

 

 

 

 

 

 

 

 

DOS/V personal computer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: Possible, : Not possible

Appendix - 44

Page 686
Image 686
Mitsubishi Electronics Model QD75P1 QD75P2 QD75P4 A1SD71S2, No. of control axes No. of positioning data items, Types