Safely Limited Increment (Sli) - Lenze i950 Commissioning Manual

Safety functions

Safely Limited Increment (SLI)

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. 72: SLI function
A Triggering of the function
B Monitoring active
If the drive exceeds the increment parameterised in
0x28CA:003 (special operation), the stop function set in
Activation of the function
The function cannot be activated if the drive is in
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,
•
as a function of the operating mode changeover (OMS) by activation of the special opera-
•
tion, Operation mode selector
by the OFF state on a safe input. For the OFF state, a function is parameterised.
•
inputs.
394
C Error status
0x28CA:001
0x28CA:002
(OMS).
^ 410
(normal operation) or
is excecuted.
Safe Operating Stop (SOS).
see safety bus.
See safe