Siemens SINAMICS G220 - Page 594

DC braking is available in 4 variants:
• Internal DC braking
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0''
%$CSBLJOHBDUJWF
%$CSBLJOHTFMFDUFE
O
Q
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① If the binary signal sink c1230 has a 1 signal, then the converter switches o󹪜 the motor current
for the duration of the motor de-excitation time p0347. The drive behaves in the same way as
it does in response to an OFF2 command.
② After the motor de-excitation time, the converter brakes the motor using DC braking.
③ When binary signal sink c1230has a0 signal, the converter exits DC braking.
• DC braking for OFF1/OFF3
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4UBSUJOHTQFFE
5JNF
0''PS0''
0''
%$CSBLJOHBDUJWF
0''PS0''
O
Q
U
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① After an OFF1 or OFF3 command, the converter brakes the motor along the OFF1 or OFF3 down
ramp to the speed to start DC braking.
② As soon as the motor speed falls below the speed to start DC braking, the converter switches o󹪜
the motor current for the duration of the motor de-excitation time p0347. The drive behaves in
the same way as it does in response to an OFF2 command.
③ After the motor de-excitation time, the converter brakes the motor using DC braking.
④ The converter exits DC braking after the DC braking time.
Functions
14.11Drive functions
SINAMICS G220 converter
592 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB