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For Operation in the Control Cabinet
SIRIUS 3RA6 Compact Starters
Add-on modules for AS-Interface
6/50
SIRIUS Innovations Supplement 2011
6
■
Overview
Various AS-i add-on modules are available for communication of
the 3RA6 compact starter with the control system using
AS-Interface:
• Standard version
• With two local inputs
• With two free external inputs
• With one free external input and one free external output
• With two free external outputs
• For local control
The AS-i add-on modules can be combined only in connection
with compact starters with a rated control supply voltage of
24 V AC/DC.
AS-i add-on module for communications controlling
With this new module it is also possible for the connected com-
pact starter to be operated directly using simple switches, i.e.
without recourse to AS-i Communication, if required.
"Automatic" mode
NC contacts can be connected to the inputs Y2 and Y4 through
the local terminals on the AS-i add-on module. If the "+" connec-
tions are connected simultaneously to both local inputs, the
AS-i add-on module will be in "Automatic" mode, i.e. it will
communicate with the control system through AS-Interface.
Local control
Opening the two inputs Y2 and Y4 will result in the direct
disconnection of the compact starter. Operation through AS-i
Communication is ended and the compact starter can now be
switched on and off directly using NO contacts (one NO contact
per direction of rotation on the reversing starter).
"LED AUX Power" must light up green, the 24 V DC supply must
be connected and the AS-i control supply voltage must no lon-
ger be applied.
Resetting to "Automatic" mode
Simultaneous application of a "1" signal at the local inputs. The
availability bit DI 0 is switched to a "1" signal.
If AS-i Communication is reset, the motor is first switched off and
then on again when requested by the control system.
Circuit diagram example for operating a 3RA61 20 direct-on-line starter
using an AS-i add-on module for on-site controller
Circuit diagram example for operating a 3RA62 50 reversing starter using
an AS-i add-on module for on-site controller
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© Siemens AG 2011
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