Switch-On/Switch-Off Sequence For 5 Kw And 10 Kw Smart Line Modules - Siemens SINAMICS S120 Manual

4.9.3

Switch-on/switch-off sequence for 5 kW and 10 kW Smart Line Modules

It is essential that the subsequently described switch-on and switch-of sequence is complied
with in order to control the 5 kW and 10 kW Smart Line Modules; if this sequence is not
observed, the Smart Line Module could be destroyed.
Observe the "Ready" signal at output terminal X21.1:
Switching on
● 24 V DC supply X24 ON
● Line contactor ON
● EP signal X21.3 and X21.4 ON
● Wait until precharging has been completed
● "Ready" signal at terminal X21.1 switched to high
● Infeed is ready, pulse enable possible for motors
Switching off
● Shut drives down
● Cancel pulse enable for motors (OFF1 signal)
● EP signal X21.3 and X21.4 OFF
● Line contactor OFF
● 24 V DC supply X24 OFF
Overload
● "Prewarning" signal at terminal X21.2 switches to low
● Shut drives down via the control system
● "Ready" signal at terminal X21.1 switches to low
● Pulse inhibit for all the drives supplied by this infeed within 4 ms
Booksize Power Units
Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
4.9 Smart Line Modules with internal air cooling
Line Modules Booksize
263