Siemens SINAMICS G120 Operating Instructions Manual page 397

Function test "Safely-Limited Speed" (SLS)
This test comprises the following steps:
Table A-10
No.
1.
2.
3.
4.
5.
6.
7.
8.
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
"Safely-Limited Speed" function (SLS)
Description
Initial state
Drive in the "ready" state (P0010 = 0)
•
No safety faults and alarms
•
r9772.4 = r9772.5 = 0 (SLS de-selected and inactive)
•
Operate the drive (if the machine permits it, at a higher speed than the
parameterized safely-limited speed)
Check that the expected drive operates
Select SLS while issuing the traversing command
Check the following:
r9772.4 = 1 (SLS selected)
•
Drive speed decreases corresponding to the selected ramp time or SLS
•
mode (if required, use an oscilloscope)
After the parameterized safely-limited speed has been fallen below, the
•
speed remains below this limit
– In SLS mode 1 à correct, must be no fault
– In SLS mode 0 à LSTO (safety fault at ramping end)
– In SLS mode 2 à LSTO (immediately)
r9772.5 = 1 (SLS active)
•
De-select SLS
Check the following:
No safety faults
•
r9772.4 = r9772.5 = 0 (SLS de-selected and inactive)
•
Check that the expected drive operates if so the following is tested:
The wiring between the control unit and power module is correct
•
Correct assignment, drive No. – inverter power module – motor
•
Correct functioning of the hardware
•
Correct wiring of the shutdown paths
•
Correct parameterization of the SLS function
•
Appendix
A.5 Acceptance Log
Status
A-13