Siemens SINUMERIK 840D sl Commissioning Manual page 219

Operator input sequence steps for PLC general reset without hardware RESET or POWER ON
By using the following operator input sequence steps you can generate a PLC general reset
without RESET/POWER ON:
1. Turn to position "2" (operating state STOP).
2. Turn to position "3" (operating state MRES, request general reset) and hold in this
3. Within 3 seconds, turn to the positions
4. After LED STOP lights up, place the PLC mode selector at position "0".
5. After LED RUN (green) is illuminated, place the PLC mode selector in position"0".
IBN CNC: NCK, PLC, drive
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
– PLC has had a general reset and is in cyclic transmission.
– LED STOP illuminates
position (about 3 seconds) until STOP-LED PS lights up again.
– LED STOP goes off then comes back on
STOP-MRES-STOP ("2"-"3"-"2").
– LED STOP first flashes with about 2Hz and then illuminates again.
– LED STOP goes out and LED PR (GREEN) lights up.
– PLC has had a general reset and is in cyclic transmission.
⇒ PLC has had a general reset and is now in cyclic transmission.
13.2 Separate NCK and PLC general reset
Tips
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