Справочник Пользователя для Mitsubishi Electronics MR-E- A/AG
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14. SERVO MOTOR
14.7 Characteristics
14.7.1 Electromagnetic brake characteristics
CAUTION
Configure the electromagnetic brake operation circuit so that it is activated not
only by the servo amplifier signals but also by an external emergency stop signal.
Refer to Section 3.9 for details.
The electromagnetic brake is designed to hold a load. Do not use it for braking.
(1) Characteristics
Though the brake lining may rattle during operation, it poses no functional problem.
A leakage magnetic flux will occur at the shaft end of the servo motor equipped with electromagnetic
brake.
A leakage magnetic flux will occur at the shaft end of the servo motor equipped with electromagnetic
brake.
HC-SFE Series
HC-KFE Series
(Note 5) Servo Motor
Item
52B to 152B
202B
13B
23B 43B
73B
(Note 1)
Type
Spring-loaded safety brake
(Note 4)
Rated voltage
24V
0
10%
10%
DC
Rated current at 20 (68 )
[A]
0.8
1.4
0.26
0.33
0.42
Excitation coil resistance at
20 (68 )
20 (68 )
[ ]
29
16.8
9.1
73
57
Capacity
[W]
19
34
6.3
7.9
9
[N m]
8.3
43.1
0.32
43.1
2.4
Static friction torque
[oz in]
1176
6103
45
6108
340
(Note 2)
Release delay time
[S]
0.04
0.1
0.03
0.1
0.03
AC off
(Fig. a)
0.12
0.12
0.08
0.12
0.12
Braking delay time
(Note 2)
(Note 2)
[s] DC off(Fig.s b, c)
0.03
0.03
0.01
0.03
0.03
[J]
400
4500
5.6
22.0
64.0
Per
braking [oz in]
braking [oz in]
56683.3
637687.1
793.6
3117.6
9069.3
[J]
4000
45000
56
220
640
Permissible braking
work
work
Per
hour
hour
[oz in]
566833
6376871
7936
31176
90693
Brake looseness at servo motor shaft
(Note 5)
(Note 5)
[degrees]
0.2 to 0.6
0.2 to 0.6
0.19 to 2.5
0.12 to 1.2
0.1 to 0.9
Number of braking
cycles
cycles
[times]
20000
20000
20000
20000
20000
[J]
200
1000
4
15
32
Brake life (Note 3)
Work per
braking
braking
[oz in]
28342
141708
567
2124.18
4535
Note:1. There is no manual release mechanism. When it is necessary to hand-turn the servo motor shaft for machine centering,
etc., use a separate 24VDC power supply to release the brake electrically.
2. The value for initial ON gap at 20
(68
).
3. The brake gap will increase as the brake lining wears, but the gap is not adjustable. The brake life indicated is the
number of braking cycles after which adjustment will be required.
4. 24VDC of the power output for interface (VDD) cannot be used. Always use a separate power supply.
5. The above values are typical initial values and not guaranteed values.
5. The above values are typical initial values and not guaranteed values.