YASKAWA E-V-MD Series User Manual

2 Selecting Products
2.2.2 Selection Calculations
2-6
(7) Servomotor Provisional Selection
 Selecting Conditions
The followings satisfy the conditions.
• Servomotor SGMJV-02A
 Specifications of the Provisionally Selected Servomotor
• Rated output: 200 (W)
• Rated motor speed: 3000 (min
-1
)
• Rated torque: 0.637 (Nm)
• Instantaneous peak torque: 2.23 (Nm)
• Servomotor moment of inertia: 0.259 × 10
-4
(kgm
2
)
• Allowable load moment of inertia: 0.259 × 10
-4
× 15 = 3.885 × 10
-4
(kgm
2
)
(8) Verification on the Provisionally Selected Servomotor
Check the following items to verify that the provisionally selected servomotor is suitable for the machine
specifications.
(9) Result
The provisionally selected servomotor is confirmed to be applicable.
The torque diagram is shown below.
TL
҇ Motor rated torque
࡮
<
2

Po
+
Pa

Provisionally selected
servomotor rated output
nM
҇ Motor rated speed
JL
҇ Allowable load moment of inertia

Po
+
Pa

<
࡮ Required acceleration torque:
TP
= +
TL
=+
0
.
43
60
ta
2
π
nM
㧔
JM
+
JL
㧕
60
×
0
.
1
2
π
×
3000
×
㧔
0
.
259
+
2
.
29
㧕
×
10
-4
1
.
23
㧔
N
࡮
m
㧕
<
Instantaneous peak torque…Satisfactory
࡮ Required deceleration torque:
TS
= −
TL
=−
0
.
43
60
td
2
π
nM
㧔
JM
+
JL
㧕
60
×
0
.
1
2
π
×
3000
×
㧔
0
.
259
+
2
.
29
㧕
×
10
-4
0
.
37
㧔
N
࡮
m
㧕
<
Instantaneous peak torque…Satisfactory
࡮ Torque effective value:
Trms
= =
t
T
P
2
࡮
ta
+
TL
2
࡮
tc
+
Ts
2
࡮
td
1
.
5
㧔
1
.
23
㧕
2
×
0
.
1
+
㧔
0
.
43
㧕
2
×
1
.
0
+
㧔
0
.
37
㧕
2
×
0
.
1
0
.
483
㧔
N
࡮
m
㧕
<
Rated torque…Satisfactory
0
.
1
1
.
5
1
.
0
0
.
1
-
0
.
37
0
0
.
43
1
.
23
Torque
Speed
(N·m)

YASKAWA E-V-MD Series Specifications

General

Brand	YASKAWA
Model	E-V-MD Series
Category	Servo Drives
Language	English