Siemens SINAMICS S120 Function Manual page 56

Infeed
1.4 Line contactor control
Example of commissioning line contactor control
Assumption:
● Line contactor control via a digital output of the Control Unit (DI/DO 8)
● Line contactor feedback via a digital input of the Control Unit (DI/DO 9)
● Line contactor switching time less than 100 ms
Commissioning steps:
1. Connect the line contactor control contact to DI/DO 8.
Note
The current-carrying capacity of the digital output must be observed (see SINAMICS
S120 Control Units and Supplementary System Components Manual). A contactor relay
may be required!
2. Parameterize DI/DO 8 as output (p0728.8 = 1).
3. Assign parameter p0738 the control signal for the line contactor r0863.1.
4. Connect the line contactor feedback contact to DI/DO 9.
5. Assign parameter p0860 an inverted input signal r0723.9.
6. Enter the monitoring time for the line contactor (100 ms) in p0861.
54
Figure 1-10 Line contactor control
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Drive functions