18 - PVD3627-August 2011
e
spindle
in
time
on
decelerati
e
t
b
c
a
t
e
axis
in
time
on
decelerati
d
a
y
t
c
b
y
Ln
c
t
c
a
c
b
y
y
y
M
M
d
M
c
braking
P
b
J
a
x
t
c
x
x
base
t
resis
motor
t
resis
motor
mod
_
_
)
*
*
(
mod
_
_
*
)
(
*
1
*
1
*
value
negative
*
2
1
1
1
0
1
max
0
tan
tan
−
−
+
=
−
=
−
−
=
=
−
=
Ω
=
Ω
=
−
−
=
=
⇔
−
=
Σ
=
λ
µ
λ
λ
µ
λ
Deceleration time t
2
“at constant Power” from
Maximal speed
to
Base speed
:
2
1
t
t
t
+
=
Λ
Total deceleration time
∆
t
from
Max speed
to 0 will be given by the sum of t
1
and t
2
: