BR 230/400-10...400
15
12.3 Permissible braking frequency of BR ...-10 and BR...-20
The braking frequency depends on the adjusted braking current.
The braking devices of the BR 230/400-10-20A type allow the following braking frequencies:
Warning!
When setting up a machine or during commissioning, it is possible to carry
out 10 braking operations in succession, i.e., with rated device current and at
a braking time of 14s. After such operating conditions, however, the device
needs a recovery time of 20 minutes.
12.4 Permissible braking frequency of BR ...-40...400
The braking frequency depends on the adjusted braking current.
The braking devices of the BR 230/400-40...400A type are designed for a cyclic duration factor
c.d.f.) of 15% and allow the following braking frequencies:
Attention!
If braking times exceeding 40s are required, it is absolutely necessary to
reduce the permissible max. braking current according to the following table.
Non-observance can damage the braking device and motor!
Braking current
Braking time
Braking frequency
rated device current
5s
14s
1 braking per 25s
1 braking per 70s
75% rated device current
5s
14s
1 braking per 20s
1 braking per 55s
50% rated device current
5s
14s
1 braking per 13s
1 braking per 35s
Braking current
Braking time
Braking frequency
rated device current
5s
14s
1 braking per 33s
1 braking per 100s
75% rated device current
5s
14s
1 braking per 27s
1 braking per 80s
50% rated device current
5s
14s
1 braking per 17s
1 braking per 50s
