BECKHOFF AX5805 Installation - Manual (Page 37)

Product description
AX5805 35
3.6.3.3 STO-mode
When it is operated in STO-mode, the AX5805 does not evaluate any motor data or the parameters of the
safety functions. It is able to execute the STO function, tests the circuitry that is switched off, and can remove
all torque from the motor.
The following table contains the minimum parameters that must be set for this mode of operation (up to
firmware 04):
Index Name Description Unit Default
value
0x2F00 Number_of_Axis Number of axes -- 0x0000
0x2F01 STO_Mode_Active Activate STO mode -- TRUE
0x2F02 Debug_Mode_Active This parameter must be set to
FALSE. -- FALSE
Starting from firmware 05 and revision number AX5805-0000-0017 the following table contains the minimum
parameters that must be set for using the STO mode:
Index Name Description Unit Default
value
0x2041 STO_Mode_Active Activate STO mode axis 1 -- FALSE
0x2841 STO_Mode_Active Activate STO mode axis 2 -- FALSE
0x2F00 Number_of_Axis Number of axis -- 0x0000
0x2F02 Debug_Mode_Active This parameter must be set to
FALSE. -- FALSE
Note
Restrictions in STO mode
When it is in STO mode, the AX5805 does not evaluate any motor data or the parameters
of the safety functions.
In order to enable and move the axis/axes, the bits in the control word for the safety
functions STO and SS1 (including all of their instances) must be set to 1.
The bits of the safety function SS1 do not have any functionality.