Interrupts/diagnostic messages
5.2 Diagnostic messages
Technology Module TM Pulse 2x24V (6ES7138‑6DB00‑0BB1)
Manual, 05/2019, A5E35061186-AB
147
Supply voltage
fault
110
H
• Error at supply voltage L+
• Possible causes:
– Low voltage
– Wiring of supply voltage L+ faulty
• Check supply voltage L+ at the Ba-
seUnit
• Check wiring of supply voltage L+
Overtemperature 506
H
Possible causes:
• Short-circuit or overload at the digital out-
puts or output of the sensor supply
• Ambient temperature outside specifications
• Contamination in the module prevents
cooling
• Check process wiring
• Improve cooling
• Check connected loads
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