Siemens SINUMERIK 840D sl Function Manual page 375

36966
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
Additional reference
36967
MD number
Default value: 1.0
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
Additional reference
36968
MD number
Default value: 0
Change becomes effective after: POWER ON
Data type: DWORD
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
$MA_SAFE_BRAKETEST_TORQUE
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_BRAKET‐
EST_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
/FBSIsl/ see Chapter "Safe Brake Test (SBT) (Page 290)"
$MA_SAFE_BRAKETEST_POS_TOL
Position tolerance brake test (NC-controlled)
Min. input limit: 0.0
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 "Safe Brake Test (SBT) (Page 290)"
$MA_SAFE_BRAKETEST_CONTROL
Expanded setting for the brake test
Min. input limit: 0
9.1 Machine data for SINUMERIK 840D sl
Protection level: 7/2
Protection level: 7/2
Protection level: 7/2
Data descriptions
Unit: %
Max. input limit: -
Unit: mm/degr.
Max. input limit: 3
Unit: -
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