Siemens Sinumerik 840D sl Function Manual page 411

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36966
MD number
Default value: 5.0
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
Additional references
36967
MD number
Default value: 1.0
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
Additional references
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
$MA_SAFE_BRAKETEST_TORQUE
Holding torque, brake test (NC- -controlled)
Min. input limit: 0.0
Protection level: 7/2
This MD specifies the torque or force when testing the mechanical brake system. This
torque or this force is generated during the test against the closed brake and it is not
permissible that the axis moves.
The percentage value entered here refers to drive parameter p2003 of the axis.
The following supplementary conditions apply:
When selecting the brake test (i.e. with the brake open), if the actual torque is more than
85 % of the test torque, the brake test is interrupted with Alarm 20095. This therefore
ensures that the motor can hold the axis even if the brake is defective.
If the brake test is performed using drive parameter p1532 (MD36968 $MA_SAFE_BRAKE-
TEST_CONTROL bit 0 = 0), the required safety margin is increased by twice the difference
between the actual holding torque and the value in parameter p1532.
Enables the corresponding test function via MD37000 $MA_FIXED_STOP_MODE, bit 1.
MD36969 $MA_SAFE_BRAKETEST_TORQUE_NORM
See Chapter 7.6: "Safe brake test (SBT)"
$MA_SAFE_BRAKETEST_POS_TOL
Position tolerance brake test (NC- -controlled)
Min. input limit: 0.0
Protection level: 7/2
Maximum position tolerance when testing the mechanical brake system.
If the axis position deviates from the position by more than this tolerance, when the brake
test is selected, then the brake test is aborted.
Enables the corresponding test function via MD37000 $MA_FIXED_STOP_MODE, bit 1.
/FBSIsl/ see Chapter 7.6: "Safe brake test (SBT)"
8.1 Machine data for SINUMERIK 840D sl
Max. input limit: 800.0
Max. input limit: - -
Data Description
Unit:%
Unit: mm/degr.
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