External Alarm 1 - Siemens SINAMICS G150 Operating Instructions Manual

Diagnosis/faults and alarms
10.3 Overview of warnings and faults
10.3.1

"External alarm 1"

Causes
Alarm A7850 ("External alarm 1") is triggered by the following optional protection devices in
the cabinet unit:
● Temperature sensor for triggering the alarm threshold in the Line Harmonics Filter
compact (option L01)
● 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".
10.3.2 "External fault 1"
Causes
Fault code F7860 ("External Fault 1") is triggered by the following optional protection devices
in the cabinet unit:
● Temperature sensor for triggering the fault threshold in the Line Harmonics Filter compact
(option L01)
● 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".
608
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A