4.2 Ratings and Specifications: SGLFW2 Models
4.2.2 Ratings: Self-Cooled Models
4
S
pecification
s
, Rating
s
, and Exter
nal Dimen
s
ion
s
of
SG
LF
S
ervomotor
s
4-7
4.2.2
Ratings: Self-Cooled Models
*1.
These values are for operation in combination with a SERVOPACK when the temperature of the armature wind-
ing is 100
°
C. The values for other items are at 20
°
C. These are typical values.
*2.
The rated forces are the continuous allowable force values at a surrounding air temperature of 40
°
C with an alu-
minum heat sink of the dimensions given in the following table.
•
Heat Sink Dimensions
•
150 mm
×
100 mm
×
10 mm: SGLFW2-30A070A
•
254 mm
×
254 mm
×
25 mm: SGLFW2-30A120A and -30A230A
•
400 mm
×
500 mm
×
25 mm: SGLFW2-45A200A and -45A380A
*3.
To externally connect dynamic brake resistor, select hardware option specification 020 for the SERVOPACK.
However, you cannot externally connect dynamic brake resistor if you use the following SERVOPACKs (maxi-
mum applicable motor capacity: 400 W).
•
SGD7S-R70
A020 to -2R8
A020
•
SGD7W-1R6A20A020 to -2R8A20A020
•
SGD7C-1R6AMAA020 to -2R8AMAA020
Linear Servomotor Moving Coil
Model SGLFW2-
30A
45A
070A
1 120A
1
230A
1
200A
1
380A
1
Rated Motor Speed
(Reference Speed during
Speed Control)
*1
m/s
4.0
4.0 4.0 4.0 4.0
Maximum Speed
*1
m/s
5.0
5.0 5.0 4.5 4.5
Rated Force
*1, *2
N
45 90 180
170
280
560
Maximum Force
*1
N
135 270 540 500 840 1680
1500
Rated Current
*1
Arms
1.4 1.5 2.9 2.8 4.4
8.7
Maximum Current
*1
Arms
5.3 5.2 10.5 9.3 16.4 32.7 27.5
Moving Coil Mass
kg
0.50
0.90
1.7
2.9
5.5
Force Constant
N/Arms
33.3
64.5
64.5
67.5
67.5
BEMF Constant
Vrms/
(m/s)/
phase
11.1 21.5
21.5
22.5
22.5
Motor Constant
N/
11.3 17.3
24.4
36.9
52.2
Electrical Time Constant
ms
7.6
7.3
7.3
19
19
Mechanical Time
Constant
ms
3.9
3.0 2.9 2.1 2.0
Thermal Resistance
(with Heat Sink)
K/W
2.62
1.17
0.79
0.60
0.44
Thermal Resistance
(without Heat Sink)
K/W
11.3
4.43
2.55
2.64
1.49
Magnetic
Attraction
N
200
630 1260 2120 4240
Maximum Allowable
Payload
kg
5.6
9.4
34
10
58
110
95
Maximum Allowable
Payload
(With External Regenera-
tive Resistor and External
Dynamic Brake Resis-
tor
*3
)
kg
5.6
11
34
20
64
110
110
Combined Magnetic Way, SGLFM2-
30
A
45
A
Combined Serial Converter Unit,
JZDP-
-
628
629
630
631
632
Applicable
SERVOPACKs
SGD7S-
1R6A, 2R1F
3R8A
2R8A,
2R8F
5R5A
180A
120A
SGD7W-
SGD7C-
1R6A
−
2R8A
5R5A
−
W
