Siemens SINAMICS V20 - Page 101

Commissioning via the built-in BOP
5.6 Function commissioning
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
99
The continuous power P
DB
and the duty cycle for the braking resistor can be modified using
the dynamic braking module (for frame size AA to C) or parameter P1237 (for frame size D
and E).
NOTICE
Damage to the braking resistor
The average power of the dynamic braking module cannot exceed the power rating of the
braking resistor.
Duty cycle
t
ON
(s)
t
OFF
(s)
t
cycle
(s)
P
DB
5%
12.0
228.0
240.0
0.05
10%
12.6
114.0
126.6
0.10
20%
14.2
57.0
71.2
0.20
50%
22.8
22.8
45.6
0.50
100%
Infinite
0
Infinite
1.00