Fault Tracing - ABB FEN-31 User Manual

Fault tracing

Diagnostic LEDs
FEN-31 is equipped with two diagnostic LEDs. The STATUS LED
describes the status of the FEN-31 and the ENC ST LED the
status of the encoders. Description of the LED signals is
presented below.
Cable fault diagnosis
Cable fault diagnostics are implemented for the HTL encoder
input. The cable fault diagnostics function samples voltage on
each of the six signal connections to detect a missing signal wire
connection.
For details about HTL encoders supported by the cable fault
diagnostics function, see the drive Firmware manual.
Colour Description
Green OK
Orange Not initialized or communication fault to
control unit
Red Not in use
Green Encoder OK
Orange Encoder fault
31
Fault tracing