ABB Remote I/O RIO600 Installation And Commissioning Manual page 284

Section 9
Troubleshooting
276
LED Color
Non Dir Oc Green
Non Dir Oc Green
Neg Seq Oc Green
Neg Seq Oc Green
Non Dir EF Green
Non Dir EF Green
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
Ready Green
Ready Green
IRF Red
Table continues on next page
State Description
OFF Non-directional
overcurrent fault
detection condition is
not detected
ON Non-directional
overcurrent fault
detection condition is
detected
OFF Negative-sequence
overcurrent fault
condition is not
detected
ON Negative-sequence
overcurrent fault
condition is detected
OFF Non-directional earth-
fault detection
condition is not
detected
ON Non-directional earth-
fault detection
condition is detected
State Description
ON Module is ready
Flashing Module is powered on,
configuration is
pending
OFF Module is healthy
Installation and Commissioning Manual
1MRS757488 H
RIO600