Yaskawa SGDH Linear Sigma Series - Manual (Page 379)

12.1 Linear Servomotor Capacity Selection Examples
12-3
12
(5) Verification on the Provisionally Selected Linear Servomotor
• Force under constant load
• Force at load acceleration
• Force at load deceleration
• Effective force
(6) Result
The provisionally selected linear servomotor and SERVOPACK are confirmed to be applicable.
The force diagram is shown below.
F L = 9.8 μ (W
W + W T + W M ) = 9.8 × 0.2 × (1 + 2 + 0.82) = 7.5 (N)
F
P
= + F
L
= + 7.5
L
60t
a
60 × 0.02
(W W + W T + W M ) 120 × (1 + 2 + 0.92)
= 389.5 (N) < Instantaneous peak force × 0.9 xxxSatisfactory
υ
F
S
= − F
L
= − 7.
L
60t a
60 × 0.02
(W
W
+ W
T
+ W
M
) 120 × (1 + 2 + 0.82)
= 374.5 (N) < Instantaneous peak force × 0.9 xxxSatisfactory
υ
Frms = =
t
F
P 2 y
t
a
+ F
L 2 y
t
c
+ F
S 2 y
t
d
108.3 (N) < Rated force × 0.9 xxxSatisfactory
0.5
(389.5) 2 × 0.02 + (7.5) 2 × 0.36 + (374.5) 2 × 0.02
(N)
0.02
0.5
0.36 0.02
-374.53
0
7.5
389.5
Force
Speed