3 Devices
9. Bit 12 in D1816 (D1896, D1976): Relative/Absolute coordinates
Bit 12=0: Absolute coordinates
Bit 12=1: Relative coordinates
10. Bit 13 in D1816 (D1896, D1976): Mode of triggering the calculation of the target position
Bit 13=0: The calculation of the target position of the axis specified is triggered by a transition in
DOG’s signal from low to high.
Bit 13=1: The calculation of the target position of the axis specified is triggered by a transition in
DOG’s signal from high to low. (The setting of bit 13 is applicable to the insertion of single-speed
motion, and the insertion of two-speed motion.)
11. Bit 14 in D1816 (D1896, D1976): Curve
Bit 14=0: Trapezoid curve
Bit 14=1: S curve
X-axis Y-axis Z-axis
HW LW HW LW HW LW
D1819 D1818 D1899 D1898 D1979 D1978
Number of pulses it takes for the motor of the
axis specified to rotate once (A)
[Description]
1. Owing to the fact that users can set an electronic gear ratio for a servo drive, the number of pulses it
takes for a servo motor to rotate once is not necessarily equal to the number of pulses which will be
generated after a decoder rotates once. The relation between the number of pulses it takes for a servo
drive to rotate once and an electronic gear ratio is described below.
Number of pulses it takes for a motor to rotate once (A) x Electronic gear ratio (CMX/CDV)=Number of
pulses which will be generated after a decoder rotates once
2. The unit used is determined by bit 0 and bit 1 in D1816 (D1896, D1976). If the unit selected is a
mechanical unit or a compound unit, users need to set D1818 (D1898, D1978) and D1819 (D1899,
D1979). If the unit selected is a motor unit, users do not need to set D1818 (D1898, D1978) and D1819
(D1899, D1979).
X-axis Y-axis Z-axis
HW LW HW LW HW LW
D1821 D1820 D1901 D1900 D1981 D1980
Distance generated after the motor of the axis
specified rotate once (B)
[Description]
1. Three units are available. They are µm/revolution, mdeg/revolution, and 10
-4
inches/revolution. The unit
used is determined by bit 0 and bit 1 in D1816 (D1896, D1976). The value in (D1821, D1820) ((D1901,
D1900), (D1981, D1980)) is in the range of 1 to 2,147,483,647.
2. The unit used is determined by bit 0 and bit 1 in D1816 (D1896, D1976). If the unit selected is a
mechanical unit or a compound unit, users need to set D1820 (D1900, D1980) and D1821 (D1901,
D1981). If the unit selected is a motor unit, users do not need to set D1820 (D1900, D1980) and D4821
(D1901, D1981).
X-axis Y-axis Z-axis
HW LW HW LW HW LW
D1823 D1822 D1903 D1902 D1983 D1982
Maximum speed (V
MAX
) at which the axis
specified rotates
[Description]
1. Users can set the maximum speed of motion. The value in (D1823, D1822) ((D1903, D1902), (D1983,
D1982)) is in the range of 0 to 2,147,483,647. (The unit used is determined by bit 0 and bit 1 in D1816
(D1896, D1976).)
2. The frequency of pulses generated by motion is in the range of 10 PPS to 500K PPS. If the value in
(D1823, D1822) ((D1903, D1902), (D1983, D1982)) is greater than 500K, the frequency of pulses
generated will be 500K PPS. If the value in (D1823, D1822) ((D1903, D1902), (D1983, D1982)) is less
than 10, the frequency of pulses generated will be 10 PPS.
DVP-20PM Application Manual
3-52
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