LED Color State Description
Non Dir Oc Green OFF Non-directional
overcurrent fault
detection condition is
not detected
Non Dir Oc
Green ON Non-directional
overcurrent fault
detection condition is
detected
Neg Seq Oc
Green OFF Negative-sequence
overcurrent fault
condition is not
detected
Neg Seq Oc
Green ON Negative-sequence
overcurrent fault
condition is detected
Non Dir EF
Green OFF Non-directional earth-
fault detection
condition is not
detected
Non Dir EF
Green ON Non-directional earth-
fault detection
condition is detected
The binary input LED is ON if the input signal is HIGH (DIM8H:
~100 V DC, DIM8L: ~24 V DC) and OFF if the signal is LOW (~0 V
DC). The operation is independent of normal/inverted parameter.
The binary output LED is ON if the output contact is closed and OFF
if the output contact is open. The operation is independent of normal/
inverted parameter.
Flashing protection indication LEDs signify that the fault has been
cleared and is waiting for reset according to the Fault indication reset
method setting.
Table 178: LED indicators (SCM module)
LED
Color State Description
Ready Green ON Module is ready
Ready Green Flashing Module is powered on,
configuration is
pending
IRF
Red OFF Module is healthy
Table continues on next page
Section 9 1MRS757488 H
Troubleshooting
276 RIO600
Installation and Commissioning Manual
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