Alarms And Faults; External Warning 1; External Fault 1 - Siemens SINAMICS G150 Operating Manual

Diagnosis / Faults and Alarms
10.4

Alarms and Faults

If a fault occurs, the drive indicates the fault and/or alarm. Faults and alarms are
listed in a fault/alarm list together with the following information:
• Fault/alarm number
• Standard drive response
• Description of the possible cause of the fault/alarm
• Description of the procedure for rectifying the problem
• Standard fault acknowledgement after it has been rectified
10.4.1

"External Warning 1"

Causes
Warning A7850 ("External Warning 1") is triggered by the following optional
protection devices in the cabinet unit:
• Thermistor motor protection unit alarm (option L83)
• PT100 evaluation unit (option L86)
Remedy
When a fault is indicated, the following procedure is recommended:
1. Identify the cause by examining the specified devices (display or LEDs).
2. Check the fault display on the relevant protection device and establish the fault.
3. Rectify the displayed fault with the help of the appropriate operating instructions
provided in "Additional Operating Instructions".
10.4.2

"External Fault 1"

Causes
Fault code F7860 ("External Fault 1") is triggered by the following optional
protection devices in the cabinet unit:
• Thermistor motor protection unit shutdown (option L84)
• PT100 evaluation unit (option L86)
Remedy
When a fault is indicated, the following procedure is recommended:
1. Identify the cause by examining the specified devices (display or LEDs).
2. Check the fault display on the relevant protection device and establish the fault.
3. Rectify the displayed fault with the help of the appropriate operating instructions
provided in "Additional Operating Instructions".
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SINAMICS G150
Operating Manual