Siemens SINAMICS G130 Operating Instructions Manual page 406

Functions, monitoring, and protective functions
9.2 Drive functions
This function controls an external contactor via output terminals, which then short-circuits the
motor through resistors when the pulses are canceled.
A prerequisite for the use of the external armature short circuit is the use of a permanent-
magnet synchronous motor (p0300 = 2xx).
NOTICE
Material damage when using motors that are not short-circuit proof
When using motors that are not short-circuit proof, activating the external armature short-
circuit braking can damage these motors.
• Only use motors that are short-circuit proof.
• Use suitable resistors for short-circuiting.
Note
Consequences of incorrect parameterization
In case of incorrect parameterization (e.g., induction motor and external armature short-
circuit selected), fault F07906 "Armature short circuit / internal voltage protection:
Parameterization error" is output.
Function diagram
FP 7014
Parameters
• p0300:
• p1230
• p1231
• p1235
• p1236
• p1237
• r1238
• r1239
406
Technology functions - External armature short circuit
Mot type selection
BI: Armature short-circuit/DC braking activation
Armature short-circuit/DC braking configuration
• 1: External armature short-circuit with contactor feedback signal
• 2: External armature short-circuit without contactor feedback signal
BI: External armature short-circuit, contactor feedback signal
External armature short-circuit, contactor feedback signal monitoring time
External armature short-circuit, delay time when opening
CO: External armature short-circuit state
CO/BO: Armature short-circuit/DC braking status word
Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A