Spring-Applied Brakes - Lenze m850 Series Project Planning

Spring-applied brakes

Rated data
NOTICE
Engagement and disengagement times apply to rated voltage (± 0 %) and suppressor circuit of
the brakes with a varistor with DC switching. Without a suppressor circuit, the times may be
longer.
The currents are the maximum values when the brake is cold (value used for dimensioning the
current supply). The values for a motor at operating temperature are considerably lower.
Requirements with regard to the DC 24 V brake: smoothed DC voltage, ripple ≤ 1 %.
Maximum switching energy for each emergency stop with n= 3000 rpm for a maximum of 3-6
emergency stops per hour.
Motor
Supply voltage range
Rated voltage
Rated torque
At 20 °C
At 120 °C
Output current
Engagement time
Disengagement time
Maximum switching energy
Mass
Moment of inertia
Brake
Brake motor
Load/brake motor ratio
Motor
Supply voltage range
Rated voltage
Rated torque
At 20 °C
At 120 °C
Output current
Engagement time
Disengagement time
Maximum switching energy
Mass
Moment of inertia
Brake
Brake motor
Load/brake motor ratio
m850-S120/S3960
U V
in,DC
U V
N,DC
M Nm
N
M Nm
N
I A
N
t ms
1
t ms
2
Q J
E
m kg
J 2
kgcm
J 7.5
2
kgcm
MB
J /J 74
L MB
m850-S140/S3240
U V
in,DC
U V
N,DC
M Nm
N
M Nm
N
I A
N
t ms
1
t ms
2
Q J
E
m kg
J
2
kgcm
J 2 18.1
kgcm
MB
J /J 34
L MB
Product extensions
Spring-applied brakes
m850-S120/M3960 m850-S120/L3960
21.6 ... 25.2
24
20
18
1.2
30
110
3100
2.00
0.75
13.3
47
m850-S140/M3240 m850-S140/L3240
21.6 ... 25.2
24
34
32
1.4
50
150
3100
3.00
2.01
32.5
19
Brakes
19.2
32
46.9
13
53