HMISIMATIC HMI KTPVerified · sol.ls-electric.com
SIMATIC HMI KTP 150000 — No connection
Alarm — operational, inspection needed· AUTO-RESET
CAUSE
Why does it occur?
The driver sees no connection to the PLC.
REMEDY · Step by step
How to fix it?
Verify Ethernet is enabled and check IP and PLC model consistency.
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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