Lenze i750 - Page 119

The funconal principle S
TO depicted applies to Basic Safety and Extended
Safety.
The terminals shown apply to Basic Safety.
PWM
µC
3x
3x
X1
SU
M
SIA SIB
GS
Fig. 13: Funconal principle S
TO
X1 Control terminals of the safety unit
SU Hardware interface
µC Microcontroller
PWM Pulse width modulaon
M Motor
Funcon chart
n
t
0
STO
Fig. 14: Safety funcon S
TO
Funconal sequence and err
or response have no adjustable parameters.
Acvaon of the funcon
•
Via the sa
fety bus. 4Safe network interfaces ^ 149
•
As response to the error stop request.
•
As response to the emergency stop request.
Funconal sa
fety
Safety funcons
Safe torque o (STO)
119