Switching Times - INTORQ BFK458 Originalbetriebsanleitung

Technical specifications
4.4

Switching times

The operating times listed here are guide values which apply to DC switching with rated air gap s
coil and standard characteristic torque. The operating times given are mean values and subject to vari-
ations. The engagement time t
Fig. 4: Operating/switching times of the spring-applied brakes
t
1
t
2
M
dyn
Size Rated torque
M
K
[Nm]
06 4
08 8
10 16
12 32
14 60
16 80
18 150
20 260
25 400
Tab. 10: Switching energy - operating frequency - operating times
1)
The maximum permissible friction energy Q
2)
These switching times are specified for usage of INTORQ bridge/half-wave rectifiers and coils with a connection
voltage of 205 V DC at s
INTORQ | BA 14.0168 | 08/2019
is approximately 8 to 10 times longer for AC switching. ...
1
M
M
dyn
U
Engagement time
Disengagement time (up to M = 0.1 M
Braking torque at a constant speed of rotation
1)
Q S
E hue
[J] [1/h]
3000 79
7500 50
12000 40
24000 30
30000 28
36000 27
60000 20
80000 19
120000 15
and 0.7 I .
LN N
t t
t
11 12
2
t
1
Delay time during engagement
t
11
) Rise time of the braking torque
t
dyn
12
Voltage
U
DC-side engagement
t
11
[ms] [ms]
15
15
28
28
17
27
33
65 100
110 120
relates to the standard friction lining.
E
t
t
2)
Operating times
Disengaging
t t
12 1
[ms]
13 28
16 31
19 47
25 53
25 42
30 57
45 78
165
230
, warm
LN
t
2
[ms]
45
57
76
115
210
220
270
340
390
28