ABB NPBA-12 User Manual

NPBA-12 Installation and Start-up Guide 7-1
Chapter 7 – Fault Tracing
Status LED Indications
The tables below describe the Status LED indications during both the
start-up sequence and operation.
Table 7-1 LED indications during the NPBA-12 start-up sequence.
Start-up Stage
Status LED Indications
MASTER MSG DDCS
Power-on OFF OFF GREEN then RED then OFF
OFF GREEN then RED then OFF OFF
GREEN then RED then OFF OFF OFF
DDCS link
initialisation
OFF OFF FLASHING GREEN (in progress)
then GREEN
Transfer rate
detection
FLASHING GREEN (in progress)
then GREEN
OFF GREEN
PROFIBUS
communication
establishment
GREEN FLASHING GREEN (in progress)
then GREEN
GREEN
Operation GREEN GREEN GREEN

ABB NPBA-12 Specifications

General

Brand	ABB
Model	NPBA-12
Category	Control Unit
Language	English