PLCS7-1200Verified · sol.ls-electric.com
S7-1200 16#2521 — STOP via STEP 7
Alarm — operational, inspection needed
CAUSE
Why does it occur?
The user issued a STOP command in TIA Portal, or an automatic STOP occurred after a download.
REMEDY · Step by step
How to fix it?
- Confirm the user action in the diagnostic buffer, then return to RUN
- If it repeats, review the program download procedure
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Summary based on the official Siemens AG manual. For accurate and complete information, always consult the official manual.
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