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Specifications
Note 5. The allowable radial load and the allowable thrust load are the values determined by taking a
service life of 30,000 hours at normal usage as the standard (or 20,000 hours for the items in
parentheses).
Note 6. M-series 1,200-r/min, 1,100 to 1,800-W Servomotors can be used only with Position Driver
software version 4.04 (April 1999) or later.
2,000 r/min
Item
Unit
Rated output
W
(See note.)
Rated torque
q
N m
(S
(See note.)
)
kgf cm
Rated rotation
r/min
speed
Momentary maxi-
r/min
mum rotation
speed
Momentary maxi-
N m
mum torque (See
mum torque (See
kgf cm
note.)
Rated current
A (rms)
(See note.)
Momentary maxi-
A (rms)
mum current
(See note.)
2
Rotor inertia
kg m
2
(GD
/4)
kgf cm s
Torque constant
q
N m/A
(See note.)
(S
)
kgf cm/A
Induced voltage
mV/
constant (See
(r/min)
note.)
Power rate (See
kW/s
note.)
Mechanical time
ms
constant
Ω
Winding resis-
tance
Winding imped-
mH
ance
Electrical time
ms
constant
Momentary al-
N
lowable radial
lowable radial
kgf
load
Momentary al-
N
lowable thrust
lowable thrust
kgf
load
Allowable radial
N
load
l
d
kgf
Allowable thrust
N
l
d
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R88M
R88M
-M20020
-M40020
200
400
0.955
1.91
9.74
19.5
2,000
2,200
3.3
3.9
34.0
40.0
2.0
3.3
7.1
7.1
–4
–4
1.6
10
6.3
10
2
–3
–2
1.6
10
6.4
10
0.56
0.57
5.7
5.8
35
40
6.0
5.8
3.4
7.9
10
6.1
46
32
4.5
5.3
420
880
43
90
1,180
2,380
120
243
205 (250)
401 (470)
21 (25)
41 (48)
19 (29)
68 (88)
R88M
R88M
-M70020
-M1K120
700
1,100
3.34
5.25
34.1
53.6
9.6
12.9
98.0
132
4.1
5.5
14.2
14.2
–4
–3
9.8
10
1.6
10
–2
–2
1.0
10
1.6
10
0.81
0.95
8.3
9.7
50
62
11
18
3.1
2.6
3.1
2.2
25
21
8.1
9.6
940
1,000
96
102
2,380
2,380
243
243
431 (500)
460 (540)
44 (51)
47 (55)
58 (78)
58 (69)
Chapter 5
R88M
R88M
-M1K820
-M2K220
1,800
2,200
8.58
10.5
87.6
107
21.6
26.5
220
270
8.6
12.3
35.4
35.4
–3
–3
4.2
10
4.9
10
–2
–2
4.3
10
5.0
10
0.98
0.85
10
8.7
50
53
17
22
2.1
2.6
0.70
0.58
17
14
24
24
2,,040
2,100
208
214
5,390
5,390
550
550
862 (1,000)
891 (1,030)
88 (102)
91 (105)
156 (190)
147 (180)
5-41
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Troubleshooting
