Siemens Sinamics S120 Function Manual page 136

Description of Safety Integrated functions
4.2 Safety Integrated Extended Functions
Starting SBT
1. Selection
You have the following options for the selection of the Safe Brake Test:
– Selection via BICO using a 0/1 signal edge at DI for p10230[0]
– Selected via fieldbus (SCC):
– Selected using forced dormant error detection (test stop) of the Extended Functions:
Not e
When selected via DI (BICO) and selected via fieldbus (SCC, S_STW3B bit 0), then the
sequence of the subsequently described steps 2 to 5 must be carefully observed.
Not e
Only brake 1 when s electing via forced dormant error detection (test stop)
When selecting using forced dormant error detection (test stop), only the internal motor
holding brake parameterized as brake 1 is tested with test sequence 1 in the direction
parameterized in p10218.
It is not possible to use the brake test together with the "Automatic test stop when
powering up" function.
The pulses must be enabled when SBT is selected. The actual speed value must not
exceed 1% of the maximum speed (p1082) when SBT is selected and over the complete
time that SBT is active.
The brake(s) must be open.
2. Wait for feedback signal, r10231[0] = 1
3. Select brake and test sequence
Make the following decisions before starting the brake test sequence:
– The brake to be tested using DI for p10230[2] or S_STW3B bit 2
– Positive or negative direction of the test torque using DI for p10230[3] or S_STW3B bit 3
– Brake test sequence 1 or 2 using DI for p10230[4] or S_STW3B bit 4.
4. Start brake test
Start the brake test sequence using a 0/1 edge at the DI for p10230[1] or in S_STW3B
bit 1.
5. Exit brake test
– Withdraw "Start brake test" using a 1/0 signal edge at DI for p10230[1] or in S_STW3B
– Withdraw "Select brake test" using a 1/0 signal edge at DI for p10230[0] or in
136
Select the brake test sequence with a 0/1 edge in S_STW3B bit 0
Selection by signal at the intended DI
After the 0/1 edge at the DI for p9705 or in S_STW1B bit 8, then initially SBT is
automatically executed. Forced dormant error detection (test stop) is then performed.
bit 1.
S_STW3B bit 0.
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
Safety Integrated