Outputs - Siemens Simatic Manual

Fail-safe function blocks for storage and retrieval machines
SBT_CLOSE_BR
SBT_FINISHED
SBT_RESULT
EXECUTE
ACK
3.8.1.2

Outputs

Name
SLS_THRESHOLD
SLS_OK
TEST_REQ
BUSY
OPEN_BR_1
OPEN_BR_2
SBT_BR_SELECT
SBT_TORQUE_DIR
SBT_SEQUENCE
SBT_FDBACK_BR
SBT_START
TEST_OK
S7-Distributed Safety/SIMATIC Safety - fail-safe function blocks for storage and retrieval machines
0: positive
1: negative
SBT brake control for an external brake
The drive issues the command to open/close the external brake
Bool via this input.
0: open ext. brake
1: close ext. brake
Drive feedback signal – test sequence status
Bool 0: test being executed
1: test completed
Drive feedback signal – test result
Bool 0: brake faulty
1: brake successfully tested
Start brake test
The brake test is started with a positive edge at this input. After a
Bool
successful test, the time for the test interval is restarted and out-
put TEST_OK is again set.
Acknowledging
If a fault occurs in normal operation, then this must be reset using
Bool ACK before the system can be restarted.
The acknowledgment is only realized with a positive edge at
ACK, and has no effect in normal operation.
Data type Description
SLS limit [SLU/min]
Int
The maximum permissible traversing velocity effective at this
time is output at this output. In normal operation, this is 32767;
for an unsuccessful brake test, VMAX_RELEASE is output
here. If VMAX_RELEASE is parameterized <= 0 then equiva-
lent value 1 is output here.
Bool Status, SLS limit
1: SAFE_V is less than/equal to SLS_THRESHOLD
0: SAFE_V has exceeded the SLS_THRESHOLD value.
A stop response should be initiated if this output changes to 0.
Bool Request brake test
Test status
Bool
1: test being executed
0: test not selected
Bool Control signal for external brake 1
1: open brake
0: close brake
Bool Control signal for external brake 2
1: open brake
0: close brake
Bool Drive communication: Brake selection
0: brake 1
1: brake 2
Bool Drive communication: Torque preselection
0: positive
1: negative
Bool Drive communication: Select test sequence
0: sequence 1
1: sequence 2
Bool Drive communication: Status of external brake
0: open
1: closed
Bool Drive communication: start
1: start the test sequence
Bool Status of the test result
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