YASKAWA SGM7J-A5A, Technical Supplement

Page: 598 / 622

Appendices
Capacity Selection for Servo Motors
580
6.
Verification of the Provisionally Selected Servo Motor
•
Steady-State Force
F
L
=

{9.8

(m
W
+ m
T
+ m
M
) + F
att
} = 0.2 {9.8

(1 + 2 + 0.82) + 0} = 7.5 (N)
•
Verification of Acceleration Force
• Verification of Deceleration Force
• Verification of Effective Force
7.
Result
It has been verified that the provisionally selected Servo Motor is applicable.
ta
FP = ( mW + mT + mM )
×
+ FL = (1 + 2 + 0.82 )
×
+ 7.5
= 389.5 (N) ≤
×
0.9 (= 396 N) …
2
0.02
Maximum force Satisfactory
ta
FS
= (
mW
+
mT
+ mM )
× −
FL
= (1 + 2 + 0.82 )
× −
7.5
= 374.5 (N) ≤
×
0.9 (= 396 N) … Maximum force Satisfactory
2
0.02
Frms
= =
t
FP
2
∙
ta
+
FL
2
∙
tc
+
Fs
2
∙
td
0.5
389.5
2
×
0.02 + 7.5
2
×
0.36 + 374.5
2
×
0.02
= 108.3 (N) ≤
×
0.9 (= 132.3 N) … Rated force Satisfactory