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8. CALCULATION METHODS FOR DESIGNING
(3) Acceleration/deceleration time constant
t
psa tpsd t0
V0/60
ts
0.05[s]
ts: settling time.(Here, this is assumed to be 0.15s.)
(4) Operation pattern
S
e
r
v
o
m
o
t
o
r
s
p
e
e
d
[r/min]
3000
Time
0.05
t
o
1.0
t
f
1.5
0.05
t
s
tpsa
0.15
[s]
tpsd
(5) Load torque (converted into equivalent value on servo motor shaft)
Travel per servo motor revolution
S Pb
1
n
16
5
8
10[mm]
T
L
Wg S
210
3
0.2 60 9.8 10
210
3
3.14 0.8
0.23[N m]