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Appendix 9.1 comparisons with a1sd71s2 model, Melsec-q – MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D User Manual

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Appendix - 44

MELSEC-Q

APPENDICES

Appendix 9 Comparisons with conventional positioning modules

Appendix 9.1 Comparisons with A1SD71S2 model

The following shows comparisons with the conventional positioning module

A1SD71S2, centered on the QD75 specifications.

Model

Item

QD75P1

QD75D1

QD75P2

QD75D2

QD75P4

QD75D4

A1SD71S2

No. of control axes

1

2

4

2

No. of positioning data items

600/axis

400/axis

2-axis linear interpolation

3-axis linear interpolation

4-axis linear interpolation

Interpolation
functions

2-axis circular interpolation

Position control

Speed control

Speed-position switching
control

(INC/ABS mode)

(Only INC mode)

Positioning
systems

Position-speed switching
control

Machine OPR function (OPR method)

(6 types)

(3 types)

JOG operation

Inching operation

Manual pulse generator function

Automatic trapezoidal
acceleration/deceleration

Acceleration/
deceleration
processing

S-pattern
acceleration/deceleration

Acceleration/deceleration time

Acceleration time and deceleration time setting

possible (4 patterns each)

Acceleration/deceleration time

same

Compensation

Electronic gears, backlash compensation

Backlash compensation

Error display

Error LED

Error LED

History data storage
(Start, error, warning)

Provided (3 types, 16 items/axis)

None

Data storage destination

Flash ROM

(battery-less backup)

Buffer memory

(battery backup)

No. of occupied I/O points

32

48

No. of module occupied slots

1

2

AD71TU

AD75TU

A6GPP, A6PHP

Peripheral
devices
(data setting,
etc.)

DOS/V personal computer

: Possible, : Not possible