Dc Braking Initiated By A Control Command; Dc Braking When The Motor Is Switched Off; Settings For Dc Braking; Configuring Dc Braking As A Response To Faults - Siemens SINAMICS G120XA Operating Instructions Manual

Advanced commissioning
6.6 Motor control

DC braking initiated by a control command

DC braking when the motor is switched off

Parameters

Settings for DC braking

Number
p0347[M]
p1230[C]
p1231[M]
p1232[M]
p1233[M]
p1234[M]
r1239[8...13]
Table 6-64
Number
p2100[0...19]
p2101[0...19]
298
Name
Motor de-excitation time
BI: DC braking activation
Configuring DC braking
DC braking, braking current
DC braking duration
Speed at the start of DC braking
CO/BO: DC braking status word

Configuring DC braking as a response to faults

Name
Changing the fault reaction, fault number
Changing the fault reaction, reaction
Precondition:
p1231 = 4 and p1230 = control command, e.g.
p1230 = 722.3 (control command via DI 3)
Function:
1. The higher-level control issues the
command for DC braking, e.g. using DI3:
p1230 = 722.3.
2. DC braking starts.
If the higher-level control withdraws the com‐
mand during DC braking, the converter inter‐
rupts DC braking and the motor accelerates to
its setpoint.
Precondition:
p1231 = 5 or p1230 = 1 and p1231 = 14
Function:
1. The higher-level control switches off the
motor (OFF1 or OFF3).
2. The motor brakes along the down ramp to
the speed for the start of DC braking.
3. DC braking starts.
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
Factory setting
0 s
0
0
0 Arms
1 s
210000 rpm
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Factory setting
0
0
SINAMICS G120XA converter