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152
D
AC Servomotor Heat Radiation Conditions
When an AC Servomotor is continuously operated at the rated conditions, a heat radiation plate equiva-
lent to an rectangular aluminum plate of t6
×
250 mm is required at the Servomotor flange mounting
area. (This is for horizontal mounting, with nothing around the Servomotor and no interference from
heat convection currents.)
H
100 VAC Servomotors
Item
Unit
R88M
-U03030L(A)
-U03030WA
R88M
-U05030L(A)
-U05030WA
R88M
-U10030L(A)
-U10030WA
R88M
-U20030L(A)
-U20030WA
R88M
-U30030LA
-U30030WA
Rated output (see note)
W
30
50
100
200
300
Rated torque (see note)
N
S
m
0.095
0.159
0.318
0.637
0.954
Rated rotational speed
r/min
3,000
3,000
3,000
3,000
3,000
Momentary maximum
rotational speed
r/min
4,500
4,500
4,500
4,500
4,500
Momentary maximum
torque (see note)
N
S
m
0.29
0.48
0.96
1.91
3.72
Momentary maximum/
rated current ratio
%
317
322
323
311
400
Rated current (see note)
A (rms)
0.63
0.9
2.2
2.7
3.7
Momentary maximum
current (see note)
A (rms)
2.0
2.9
7.1
8.4
14.8
Rotor inertia
kg
S
m
2
(GD
2
/4)
0.21
×
10
–5
0.26
×
10
–5
0.40
×
10
–5
1.23
×
10
–5
1.91
×
10
–5
Torque constant (see
note)
N
S
m/A
0.168
0.194
0.156
0.255
0.279
Induced voltage
constant (see note)
mV/(r/min)
5.87
6.79
5.43
8.9
9.74
Power rate (see note)
kW/s
4.36
9.63
25.4
32.8
47.3
Mechanical time
constant
ms
1.6
0.9
0.6
0.4
0.3
Winding resistance
Ω
7.22
4.34
1.22
0.706
0.435
Winding impedance
mH
9.7
6.9
2.0
4.0
2.3
Electrical time constant
ms
1.3
1.6
1.6
5.7
5.3
Weight
kg
Approx. 0.3
Approx. 0.4
Approx. 0.5
Approx. 1.1
Approx. 1.7
Corresponding Servo Driver
R88D-
UP03L(A)
-UP03W
R88D-
UP04L(A)
-UP04W
R88D-
UP10L(A)
-UP10W
R88D-
UP12L(A)
-UP12W
R88D-
UP15LA
-UP15W
Note The values for torque and rotational speed characteristics, are the values at an armature winding tempera-
ture of 100
°
C, combined with the Servo Driver. Other values are at normal conditions (20
°
C, 65%).
The
maximum momentary torque is a reference value.
D
AC Servomotor Heat Radiation Conditions
When an AC Servomotor is continuously operated at the rated conditions, a heat radiation plate equiva-
lent to an rectangular aluminum plate of t6
×
250 mm is required at the Servomotor flange mounting
area. (This is for horizontal mounting, with nothing around the Servomotor and no interference from
heat convection currents.)
Specifications
Chapter 5
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