Safety engineering
Safety functions
Safe PROFIsafe connection
1
1.3
1.3.5
1.3-14
EDS94AYAD EN 2.2
Only the bits specified of the PROFIsafe control byte are supported:
Offset Bit
Byte 7 6 5 4 3 2 1 0
4 - - - activate
_FV
- - - -
Tab. 1.3-10 Structure of the PROFIsafe control byte
Details of the control byte
Name Value Description
activate_FV
1
The PROFIsafe output data is deactivated. Thus, the STO function is
activated.
0 The function is deactivated.
- 0 Reserved for future extensions
Tab. 1.3-11 Detail specification of the control byte
The PROFIsafe input data is transmitted to t he control by the safety module.
Offset Bit
Byte 7 6 5 4 3 2 1 0
0-- - - - - Status
SS1
Status
STO
1 - - - - - - - -
2 - - - - - - - -
3 Error - - - SD-In4 - SD-In2 SD-In1
Tab. 1.3-12 Structure of the PROFIsafe input data
Details of the PROFIsafe input data
Name Value Description
STO
0
The STO function is not active.
1 The STO function is active and the drive is safely switched to torque-free
operation.
This bit is also set at the end of the stopping time by SS1.
SS1
0 The SS1 function is not active.
1 The SS1 function is active.
At the end of the function the STO bit is set.
SD-In1
0
Sensor at I1A and I1B
At least one channel is in the OFF state
1 The channels A and B are in the ON state
SD-In2
0
Sensor at I2A and I2B
At least one channel is in the OFF state
1 The channels A and B are in the ON state
SD-In4
0
Sensor at I4A and I4B
At least one channel is in the OFF state
1 The channels A and B are in the ON state
Error
0 Error status is not active.
1 Error status is active.
- 0 Reserved for future extensions
Tab. 1.3-13 Detailed specification of the PROFIsafe input data
Control byte
PROFIsafe input data