3 Functions of Devices in DVP-PM
DVP-PM Application Manual
3-59
3.12.1 Functions of Special Registers for Manual Mode Settings
X axis Y axis Z axis A axis
HW LW HW LW HW LW HW LW
D1816 D1896 D1976 D2056
Parameter Setting
See the tables below for the explanations of b0 ~ b15.
 b0 and b1 of D1816 (D1896, D1976, D2056): setting of unit
b1 b0 Unit Explanation
0 0 Motor Unit: pulse
0 1 Machine Unit: length, angle
1 0
1 1
Combined
Unit for position: length, angle (machine)
Unit for speed: pulse (motor)
Motor Unit Combined unit Machine Unit
pulse um
pulse m deg
Position
pulse 10-4inch
pulse/sec cm/min
pulse/sec 10deg/min
Speed
pulse/sec inch/min
y Position data: zero point position (HP), target position (I) (P(I)), target position (II) (P(II), current position (CP).
y Speed data: maximum speed (V
MAX
), bias speed (V
BIAS
), JOG speed (V
JOG
), zero return speed (V
RT
), zero return
deceleration speed (V
CR
), operation speed (I) (V(I)), operation speed (II) (V(II)).
y Example 1:
b[1:0] = 00
: Motor unit @ unit of position: pulse; unit of speed: pulse/sec (PPS)
Assume
: target position P(I): 10,000 (pulse); operation speed V(I): 10K (PPS)
Explanation
: When the positioning controller sends out 10,000 pulses (frequency at 10K PPS), the target
position can be achieved. The displacement moved by every pulse is calculated by users according to the
parameter of connected devices.
y Example 2:
b[1:0] = 01
: Machine unit @ unit of position: um; unit of speed: cm/min
Assume:
D1818 (D1898/D1978) = 1,000 (Pulse/REV), D1820 (D1900/D1980) = 100 (um/REV), target position
P(I) = 10,000 (um), and operation speed V(I) = 6 (cm/min). Solve the number of pulses and the frequency
required by pulse instruction of the positioning controller.
Solution
:
1.
pulses of number Total
pulses of Number
Revolution
Revolution
Distance
P(I) Distance Total
A
1
B
××=
444344421
43421
A: Pulses per revolution (PPR) of motor; B: Displacement per relolution (DPR) of motor
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