VBMS ....
17
13.3 Permissible braking frequency
The braking frequency depends on the adjusted braking current:
Warning:
When setting up a machine or during commissioning, it is possible to carry
out 5 braking operations in succession, i.e., with rated device current and at
a braking time of 10s. After such operating conditions, however, the device
needs a recovery time of 15 minutes.
cyclicduration factor (r.c.d.f.) = t
B
/ cycletime x 100
t
B
= Braking time, Cycle time = Braking time + Non-braking time
Braking current
Braking time
Braking frequency
20A
5s
10s
1 Braking per 63s
1 Braking per 125s
15A
5s
10s
1 Braking per 34s
1 Braking per 67s
10A
5s
10s
1 Braking per 22s
1 Braking per 44s
Load curve for VBMS
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
40
50
60
70
80
90
100
Cyclic duration factor in %
Permissible max. braking curre
nt
in % of
t
h
e rat
ed device
cu
rren
t
Содержание 2C000.23020
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