Lenze i950

19.10 Safely Limited Increment (SLI)
With this funcon, a maximum permissible posion change [incr] can be set.
Within the posion window, the increments parameterised can be traversed in posive and
negave
direcons. There is no me limit for execung this funcon. If the increment limits
parameterised are exceeded, an error stop is iniated.
WARNING!
A safety-rated encoder system must be used.
Without an enc
oder, this safety funcon cannot be used.
▶
Apply a safety-rated encoder system to use this funcon.
Funconal
descripon
Fig. 75: SLI funcon
A Triggering of the funcon
B Monitoring acve
C Error status
If the drive exceeds the increment parameterised in 0x28CA:001 (normal operaon) or
0x28CA:003 (special operaon), the stop funcon set in 0x28CA:002 is e
xcecuted.
Acvaon of the funcon
The
funcon cannot be acvated if the drive is in Safe Operang Stop (SOS).
The
funcon can be acvated during operaon.
The funcon is acvated
•
via the sa
fety bus. For this purpose, a data telegram is sent to the inverter, see safety bus.
•
as a funcon of the operang mode changeover (OMS) by
acvaon of the special opera-
on, Operaon mode selector (OMS). ^ 434
•
by the OFF state on a safe input. For the OFF state, a funcon is parameterised. See safe
inputs.
Safety
funcons
Safely Limited Increment (SLI)
418