YASKAWA SGM7D, Руководство по эксплуатации продукта

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2.1 Selecting the Servomotor Capacity
2-3
2
Capacity
S
election
The following Servomotor meets the selection conditions.
•
SGMCV-17CEA11

Specifications of the Provisionally Selected Servomotor
7.
Verification of the Provisionally Selected Servomotor
•
Verification of required acceleration torque:
•
Verification of required deceleration torque:
•
Verification of effective torque value:
t
c
=Time of constant motor speed = t
0
– t
s
– t
psa
– t
psd
8.
Result
It has been verified that the provisionally selected Servomotor is applicable.
The torque diagram is shown below.
Item Value
Rated Torque 17 (N

m)
Instantaneous Maximum Torque 51 (N

m)
Moment of Inertia ( J
M
)
0.00785 (kg

m
2
)
Allowable Load Moment of Inertia Ratio ( J
R
)
25
TMa
= =
≈ 44.9 (N
x
m) < Maximum in s tantaneou s torque... S ati s factory
(
JL
+
JM
)
×
NO
9.55
× tp
s a
(0.1 3 5 + 0.00785)
×
3 00
9.55
×
0.1
TMd
= - = -
≈ -44.9 (N
x
m) < Maximum in s tantaneou s torque... S ati s factory
(
JL
+
JM
)
×
NO
9.55
× tp
s d
(0.1 3 5 + 0.00785)
×
3 00
9.55
×
0.1
Trm s = =
TMa
2
×
tp
s a
+
TL
2
×
tc
+
TMd
2
×
tp
s d
2
44.9
2
×
0.1 + 0
2
×
0.05 + (-44.9)
2
×
0.1
≈ 14.2 (N
x
m) < Rated torque... S ati s factory
tf
Torque (N
⋅
m)
Time ( s )
-44.9
0.05
44.9
0.1 0.1 0.1
2.0