Siemens SINUMERIK 840D sl Commissioning Manual page 35

Initial commissioning
In order to achieve a defined state of the complete system, for the initial commissioning of the
NCU, a general reset of the NC and the PLC must be performed.
Note
In the following cases, a general PLC reset must always be performed:
● Initial commissioning
● Module replacement
● General reset request by the PLC
● Upgrading the PLC
Procedure:
1. Set the rotary switch of the NCU to the following settings:
– NCK commissioning switch: Switch position "1"
– PLC mode selector: Switch position "3"
2. Initiate a power-on reset by switching-off the control and switching-on again – or by pressing
the Reset button on the front of the NCU. The NC is shut down and is restarted with the
request for a general reset.
Effect:
– The "STOP" LED flashes.
– The "SF" LED illuminates continuously.
3. Within approx. three seconds, turn the PLC mode selector switch to the positions "2" → "3"
→ "2".
Effect:
– The "STOP" LED first flashes with about 2 Hz and then illuminates continuously.
4. Turn the PLC mode selector switch back to the "0" position.
Effect:
– The "STOP" LED extinguishes.
– The "RUN" LED flashes initially and then illuminates green continuously.
5. Turn the NCK commissioning selector switch back to the "0" position.
CNC Commissioning: NC, PLC, Drive
Commissioning Manual, 12/2019, A5E48312804B AA
Requirements for commissioning
3.4 Power-On and boot-up
35