Fault tracing
Diagnostic LEDs
The FEN-01 is equipped with two diagnostic LEDs. The STATUS
LED describes the status of the FEN-01 and the ENC ST LED the
status of the encoders. Description of the LED signals is
presented below.
Colour
Description
Green
OK
Orange
Not initialized or communication fault to
control unit
Red
Not in use
Green
Encoder(s) OK
Red
TTL encoder (X31) fault
Orange
TTL+ encoder (X32) fault
Red / orange
TTL encoder fault X31 & TTL+ encoder
swapping
X32 fault
Red flashing
TTL encoder (X31) warning
Orange
TTL+ encoder (X32) warning
flashing
25
Fault tracing