Moeller Rapid Link, Switching And Installation System, Page: 29 / 162

01/08 AWB2190-1430GB
25
2 Head station RA-IN
Device overview Key to part numbers
Proper use
The head station
The interface control unit RA-IN head station provides the
connection to the PROFIBUS-DP field bus and handles all
communication within the AS-Interface
®
run.
The user program receives its input information from the interface
control unit RA-IN. To the outside, the overall system acts like a
single connection cable. In the higher-level fieldbus the interface
control unit RA-IN is a station with its own address.
The interface control unit RA-IN contains a built-in power extender
(PEX) with a data link for up to 2.8 A at 30 V
H AS-Interface
®
voltage. The AS-Interface
®
power extender is current-limited (self-
resetting time-lag fuse, 3 A).
For the power supply of the interface control unit RA-IN, a
standard PSU with 30 V
H to AS-Interface
®
specifications (SELV,
smoothing, etc.) with or without data link is needed.
Improper use
Figure 24: Overview RA-IN
a Space for labelling top and bottom
b
7 Status and diagnostic LEDs
c Three-digit digital display assembly, Mode and Set keys for device
configuration
d Socket for M12 Y- or T-connector to PROFIBUS-DP
e Socket for 30 V DC supply
f AS-Interface
®
supply cable, 1.5 m with M12 plug
Interface Control Unit
ERROR
POWER UASi
prg
enable
ASi
active
prj
mode
ASi 30 V PROFIBUS
mode set
b
a
a
c
f
e d
Figure 25: Key to part numbers RA-IN
j Danger!
The interface control unit RA-IN must be supplied only fro
a PSU that meets the requirements for safe isolation
according to IEC/EN 60950 (SELV).
RA-IN 2.1 - dp
PROFIBUS-DP
AS-Interface
®
-Specification 2.1
Ra pid Link – In terface Control Unit