Siemens SINAMICS G220 - Page 673

⑦ Activation of the SLS limit val‐
ue
• Monitoring of the SLS1 limit value (p9531[0]) is e󹪜ective once
the SLS delay time (p9551) has elapsed.
• The converter signals the active SLS level (r9722.9=0,
r9722.10=0).
⑧ Violation of the SLS limit
• If the motor speed violates the SLS1 limit value, the converter
initiates the set stop response p9563[0].
⑨ Deselection of SLS
• The converter detects deselection of SLS.
• The motor accelerates to the setpoint of the higher-level control
1)
The signals for selecting the SLS limits di󹪜er, depending on the control:
- Control of the SLS limits via PROFIsafe Selection of an SLS limit with 1 signal
- Control of the SLS limits via F-DI Selection of an SLS limit with 0 signal
2)
The converter automatically brakes the motor if the following signals are interconnected:
- c1051 is interconnected with r9733[0]
- c1052 is interconnected with r9733[1]
3)
Recommendation for setting the SLS limit values: SLS1 limit value < SLS2 limit value < … < SLS3 limit
value.
Example
SLS is suitable for machines where hazards due to excessive speeds are possible. In the following
work steps, the use of SLS is particularly useful for direct contact between man and machine:
• During commissioning
• During setup
• For maintenance work
Table 14-92 Application examples SLS
Example Solution
Setup mode: The machine operator must enter the
dangerous area of a machine and manually intro‐
duce material into a machine part.
With SLS, the converter monitors the speed of the
machine component.
To protect the drill chuck from destruction, a turn‐
ing machine must not exceed a certain maximum
speed of the machine part.
Parameters
The following list contains the parameters of the "SLS with switchover of speed levels" function.
Number Name Unit
p9531[0...3] SI SLS limit values [mm/min]
p9531[0...3] SI SLS limit values [rpm]
p9533 SI SLS setpoint speed limiting [%]
p9551 SI SLS delay time for limit value change [ms]
p9563[0...3] SI SLS stop response 
p9603.0...1 SI control 
Functions
14.12Safety Integrated
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 671