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MELSEC-Q
3 SPECIFICATIONS AND FUNCTIONS
QD75P /QD75D
Model
Item
QD75P1 1
QD75D1
QD75P2 1
QD75D2
QD75P4 1
QD75D4
No. of control axes 1 axis 2 axes 4 axes
Interpolation function None
2-axis linear interpolation
2-axis circular interpolation
2-, 3-, or 4-axis linear
interpolation
2-axis circular interpolation
Control system
PTP (Point To Point) control, path control (both linear and arc can be set), speed control, speed-
position switching control, position-speed switching control
Control unit mm, inch, degree, pulse
Positioning data
600 data /axis
(Can be set with peripheral device or sequence program.)
Backup
Parameters, positioning data, and block start data can be saved on flash ROM
(battery-less backup)
Positioning system
PTP control: Incremental system/absolute system
Speed-position switching control: Incremental system/absolute system
2
Position-speed switching control: Incremental system
Path control: Incremental system/absolute system
In absolute system
• –214748364.8 to 214748364.7 (µm)
• –21474.83648 to 21474.83647 (inch)
• 0 to 359.99999 (degree)
• –2147483648 to 2147483647 (pulse)
In incremental system
• –214748364.8 to 214748364.7 (µm)
• –21474.83648 to 21474.83647 (inch)
• –21474.83648 to 21474.83647 (degree)
• –2147483648 to 2147483647 (pulse)
In speed-position switching control (INC mode) / position-speed switching control
• 0 to 214748364.7 (µm)
• 0 to 21474.83647 (inch)
• 0 to 21474.83647 (degree)
• 0 to 2147483647 (pulse)
In speed-position switching control (ABS mode)
2
Positioning range
• 0 to 359.99999 (degree)
Speed command
0.01 to 20000000.00 (mm/min)
0.001 to 2000000.000 (inch/min)
0.001 to 2000000.000 (degree/min)
1 to 1000000 (pulse/s)
Acceleration/
deceleration process
Trapezoidal acceleration/deceleration, S-curve acceleration/deceleration
Acceleration/
deceleration time
1 to 8388608 (ms)
Four patterns can be set for each of acceleration time and deceleration time
Positioning
Sudden stop
deceleration time
1 to 8388608 (ms)
1: QD75P represents the open collector output system, and QD75D represents the differential driver output system.
2: In speed-position switching control (ABS mode), the control unit available is "degree" only. (For details, refer to Section 9.2.17 "Speed-
position switching control (ABS mode)".
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