Siemens SINAMICS SM150 - Page 65

Adjusting the -K110 and -K120 delay times
A Safety relay -K110 ...
① Off-delay time
B Time relay -K120
② Runtime setting in %
③ Time range setting
④ Time range display
⑤ Display function
⑥ Function selection
Figure 3-13 Safety relay -K110 and time relay -K120
The delay times set at the factory can be changed by the customer using the closed-loop
controllers. Change the settings of the time relay -K120 only when it is disconnected from the
power supply.
When you plan your settings, you must comply with the following rules:
T
delay K110
> (T
delay- K120
+ T
tolerance
*)
*T
tolerance
= 1 second
If this rule is not observed, safety is not restricted in any way. However, the second switch-off
signal path via the circuit-breaker is used for each activation.
Description
3.6 Description of options
SINAMICS SM150 6SL3845-7NN46-7AA0
Operating Instructions 04/2017 65