Technical data
3
j
| BA 14.0190 - EN | 02/2007
14
3.4
Operating times
K14.0583
Fig. 3
Operating times of the INTORQ spring-applied brakes
t
1
Engagement time
t
11
Reaction delay during engagement
t
2
Disengagement time (up to M = 0.1 M
r
)
t
12
Rise time of the brake torque
Type
Rated brake
torque at
Δ
n =
100 min
-1
Max. permissible
friction work per
operation only
Transition
operating
frequency
Operating times [ms] for s
Lürated
M
r
1
)
Q
E
s
hü
Engaging DC-switching
Disengag
ing
[NM]
[J]
[h
-1
]
t
11
t
12
t
1
t
2
INTORQ BFK468-18
150
60000
20
26
30
56
70
INTORQ BFK468-20
260
80000
19
102
112
168
106
INTORQ BFK468-25
400
120000
15
60
135
197
120
INTORQ BFK468-31
1200
300000
13
65
133
198
250
Tab. 5
Friction work - operating frequency - operating times
1)
Minimum brake torque when all components are run in
The transition from the state without brake torque to the steady brake torque is not without
delay. The engagement times are valid for switching on the DC side with an induction voltage
of approx. 5 to 10 times nominal voltage. The chart shows the delay during engagement t
11
,
the rise time of the brake torque t
12
and the engagement time t
1
= t
11
+ t
12
, as well as the
disengagement time t
2
.
Disengagement time
The disengagement time is not influenced by DC or AC switching operations.