Lenze i950 Series, Manual

Page: 418 / 500

19.10 Safely Limited Increment (SLI)
With this function, a maximum permissible position change [incr] can be set.
Within the position window, the increments parameterised can be traversed in positive and
negative directions. There is no time limit for executing this function. If the increment limits
parameterised are exceeded, an error stop is initiated.
WARNING!
A safety-rated encoder system must be used.
Without an encoder, this safety function cannot be used.
▶
Apply a safety-rated encoder system to use this function.
Functional description
Fig. 75: SLI function
A
Triggering of the function
B Monitoring active
C Error status
If the drive exceeds the increment parameterised in 0x28CA:001 (normal operation) or
0x28CA:003 (special operation), the stop function set in 0x28CA:002 is excecuted.
Activation of the function
The function cannot be activated if the drive is in Safe Operating Stop (SOS) .
The function can be activated during operation.
The function is activated
•
via the safety bus. For this purpose, a data telegram is sent to the inverter, see safety bus.
•
as a function of the operating mode changeover (OMS) by activation of the special opera-
tion, Operation mode selector (OMS) .
^
434
•
by the OFF state on a safe input. For the OFF state, a function is parameterised. See safe
inputs.
Safety functions
Safely Limited Increment (SLI)
418