Electromagnetic Brake - Mitsubishi Electric MELSERVO HF-MP Instruction Manual

8. HA-LP SERIES

8.3 Electromagnetic brake

CAUTION
The characteristics of the electromagnetic brake provided for the servo motor with an electromagnetic brake
are indicated below.
Item
Type (Note 1)
Rated voltage (Note 4)
Capacity
Coil resistance (Note 6)
Inductance (Note 6)
Brake static friction torque
Release delay time (Note 2)
Braking delay
[s] DC off
time (Note 2)
Permissible braking Per braking
work
Per hour
Brake looseness at servo motor shaft (Note 5) [degrees]
Number of braking cycles
Brake life (Note 3)
Work per braking
Selection example of
For the suppressed voltage 125V
surge absorbers to
For the suppressed voltage 350V
be used (Note 7, 8)
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
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. Always prepare a power supply exclusively used for the electromagnetic brake.
5. The above values are typical initial values and not guaranteed values.
6. These values are measured values and not guaranteed values.
7. Select the electromagnetic brake control relay properly, considering the characteristics of the electromagnetic brake and surge
absorber.
8. Manufactured by Nippon Chemi-Con Corporation.
The electromagnetic brake is provided to prevent a drop at a power failure or
servo alarm occurrence during vertical drive or to hold a shaft at a stop. Do not
use it for normal braking (including braking at servo lock).
Before performing the operation, be sure to confirm that the electromagnetic brake
operates properly.
The operation time of the electromagnetic brake differs depending on the power
supply circuit you use. Be sure to check the operation delay time with a real
machine.
Servo motor
[W] at20 (68 )
[ ]
[H]
[N m]
[oz in]
[s]
[J]
[J]
[times]
[J]
(68 ).
801B 12K1B
11K1MB 15K1MB
15K2(4)B 22K2(4)B
Spring-loaded safety brake
46
12.4
2.96
160.5
22700
0.3
0.04
5000
50000
to 0.8
20000
3000
TND10V-221KB
8 - 12
HA-LP series
601B
701MB
11K2(4)B
0
24V
DC
10%
30
19.0
3.12
82
11600
0.25
0.04
3000
30000
to 0.8
20000
1000
TND20V-680KB