Siemens Sinumerik 840D sl Function Manual page 338

Connecting Sensors/Actuators
7.6 Safe Brake Test (SBT)
SPBN m002
L MB
OW
T DBB 8
m002: NOP 0;
CALL FC 18
Start
Stop
Funct := B#16#5
Mode
AxisNo := 7,
Pos
FRate := 1.000000e+003, //Feed: 1000 mm/min
InPos := M
Error
State
AUF DB 37
U M
O M
FP M
R M
U E
SPBN end
U M
= DBX 28.1
R M
R M
end: NOP 0
Determining the test torque, MD36966 $MA_SAFE_BRAKETEST_TORQUE
When determining the test torque MD36966 $MA_SAFE_BRAKETEST_TORQUE,
the maximum holding torque that occurs must first be determined. The maximum
occurring holding torque can be determined in r1509 by traversing the axis to
various positions with different forces / torques due to weight (tools or workpieces).
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
//Conditional jump
115 //Load noted channel state
W#16#10 //Mark bits
//Request channel axis
//Traverse Z axis
:=M 111.7 //Start of traversing motion
:= FALSE //Not used
//Mode: Axis mode
:= B#16#1 //Traverse: Incremental
//Axis number of the axis to be traversed, Z--axis
:= --5.000000e+000, // Distance traversed: Minus 5 mm
113.0, //Position reached
:= M 113.1 //Error has occurred
:= MB 114 //Error status
//Open axis DB
113.0 //Position reached
113.1 //Error has occurred
113.2 //Edge marker
111.7 //Start FC18
3.7 //Reset MCP
//Conditional jump
111.4 //Error has occurred
//Acknowledge error with axis reset
111.0 //Start FB 11
110.7 //Brake test running
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