ABB NPBA-12, Installation And Startup Manual

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Chapter 2 – Overview
2-2 NPBA-12 Installation and Start-up Guide
The NPBA-12
PROFIBUS Adapter
Module The NPBA-12 PROFIBUS Adapter Module is an optional device for
ABB drives which enables the connection of the drive to a PROFIBUS
system. The drive is considered as a slave in the PROFIBUS network.
Through the NPBA-12 PROFIBUS Adapter Module it is possible to:
• Give control commands to the drive
(Start, Stop, Run enable, etc.)
• Feed a motor speed or torque reference to the drive
• Give a process actual value or a process reference to the
PID controller of the drive
• Read status information and actual values from the drive
• Change drive parameter values
• Reset a drive fault.
The PROFIBUS commands and services supported by the NPBA-12
PROFIBUS Adapter Module are discussed in Chapter 6. Please refer
to the user documentation of the drive as to which commands are
supported by the drive.
The adapter module is mounted onto a standard mounting rail inside or
outside the drive unit, depending on drive type and configuration. See
the user’s manual of the drive for module placement options.
Figure 2-1 The construction of the PROFIBUS link and the NPBA-12 Adapter Module.
Screw terminal blocks for the bus cable
connection and for power supply
connection (see Chapter 4)
Fibre optic connectors for
connection to the drive:
RXD = Receiver
TXD = Transmitter
Status LEDs
(For descriptions see Chapter 7)
NPBA-12
PROFIBUS ADAPTER
MASTER
A B
+24V 0V DG SH
RESET
TXD
RXD
5 6 7 8
1 2 3 4
MSG DDCS
A B
PROFIBUS
Master
Slave Stations
ABB Drive
ABB Drive
Reset button for initialisation of module