ABB CP650-x Operating Instructions Manual page 25

Dedicated LED Indicators
There is one LED in the upper left part of the front below the red stripe. The meaning of the LED indicator
is explained in the following table:
LED color Status
Red Blinking
On
Green Blinking
On
Operating Instructions
Meaning
Battery low or alarm requires acknowledgment
Hardware fault
Communication error
Normal operation
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CP600/Issue: 12.2011