Led indicators – Alpha Technologies INEX 100A STS Module and MBS+PDU User Manual
Page 30
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STS operation mode Indicator
Alarm Indicator
Load Indicator
Figure 14–STS LED display
7.2.1 LED
Indicators
STS Module Yellow and Red LED Display Status
Priority
Yellow LED
LED Signal
Status
Solid
Mains or Inverter abnormal.
Blink (fast)
Back-feed relay open.
Blink (fastest)
STS output abnormal.
Priority
Red LED
LED Signal
Status
Blink (slow)
Fan lock or CAN communication fail or
EEPROM fault.
Blink (fast)
SCR short.
Blink (fastest)
MBS position abnormal.
Solid
STS fault mode, overload or over
temperature or output short
Table F–Inverter LED indicator display