Technical data

Drive functions
7.2 Basic functions
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
193
Note
• During parameterization, a check is made to determine whether the following conditions
have been met (if not, fault message F7906 is generated):
– Suitable type of motor for function
– Function-specific: Sensible assignment of parameters p1232 ... p1237.
• The internal armature short-circuit (p1231 = 4 for synchronous motor) and internal voltage
protection (p1231 = 3) functions are not supported for the SINAMICS S110 system.
• The "IASC/DC brake" fault response has the second-highest priority (second only to
OFF2).
Function diagrams (see SINAMICS S110 List Manual)
● 7014 External armature short circuit (p0300 = 2xx or 4xx, synchronous motors)
● 7017 DC brake (p0300 = 1xx, induction motors)
Overview of important parameters (see SINAMICS S110 List Manual)
● p1226 Standstill detection, velocity threshold
● p1230[0...n] BI: Armature short-circuit/DC brake activation
● p1231[0...n] Armature short-circuit/DC brake configuration
● p1232[0...n] DC brake, braking current
● p1233[0...n] DC braking time
● p1234[0...n] DC brake starting speed
● p1235[0...n] BI: External armature short-circuit, contactor feedback signal
● p1236[0...n] External armature short-circuit, contactor feedback signal monitoring time
● p1237[0...n] External armature short-circuit, delay time when opening
● r1238 CO: Armature short-circuit, external state
● r1239.0..10 CO/BO: Armature short-circuit/DC brake status word