Beijing RichAuto S&T Co., Ltd.
Forging ahead and determined to win 72
►
Helical rack
pulse equivalent =
1600
1.25×23×3.141592654 ×0.2÷cos
(
19°31
′
42
″
)
=
1600×cos
(
19.52833333
)
1.25×23×3.141592654 ×0.2
= 83.478
NOTES
:
1.25×23×3.141592654×0.2= 18.0641577605
cos
(
19.52833333
)
= 0.94247630504668681677372940102406
1.25×23×3.141592654×0.2÷ cos
(
19.52833333
)
=19.1666969915
≈
19.1667
3.
Rotation axis Unit
:(
pul/°
)
Formula
=
pulses per revolution / angles per revolution
(
360
°)
pulse =
360 °
Stepper angle
×Driver subdivision
360 °×transmission ratio
4.
Pulse equivalent of rotation axis
e.g.
:
pulse/rev=1600,transmission ratio =1/40,results retain up to three decimal places
pulse equivalent =
1600
360×1/40
=177.778
9.6.2
Servo driver
1.
Linear axis
►
Screw drive
:
pulse equivalent * screw pitch*mechanical transmission ratio
►
Straigh track
:
pulse equivalent*rack module*gear teeth number*π*mechanical
transmission ratio
►
Helical rack
:
pulse equivalent * rack module*gear teeth number*π*mechanical transmission
ratio/cos
►
Pulley&belt drive
:
pulse equivalent *π*pulley diameter*mechanical transmission ratio
2.
Calculate electronic gear ratio according to fixed pulse equivalent
Pulse equivalent of handle=1000
YASKAWA- Numerator Pn20E
YASKAWA∑
—
7:
Encoder resolution=16777216
(
2
24
)
Set
Pn20E
=16777216
YASKAWA∑
—
V: Encoder resolution=1048576
(
2
20
)
Set
Pn20E
=1048576