Справочник Пользователя для Siemens Automobile Electronics 3RA2
Combination Starters & Starters for Group Installation
SIRIUS 3RA2 Motor Starters
General data
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SIRIUS Innovations Supplement 2011
6
Communications integration using IO-Link
Motor starters can also be assembled with IO-Link for connec-
tion to the higher-level control system. For each starter this
requires a communication-capable contactor onto which a
3RA27 11 function module is plugged (various versions for
direct-on-line, reversing and wye-delta starts). The design of the
SIRIUS motor starters permits a group of up to 4 SIRIUS controls
to be conveniently connected through a standardized IO-Link to
a control system, reducing wiring time considerably compared
to the conventional parallel wiring method. The electrical con-
nection is made using only a single cable with three conductors.
tion to the higher-level control system. For each starter this
requires a communication-capable contactor onto which a
3RA27 11 function module is plugged (various versions for
direct-on-line, reversing and wye-delta starts). The design of the
SIRIUS motor starters permits a group of up to 4 SIRIUS controls
to be conveniently connected through a standardized IO-Link to
a control system, reducing wiring time considerably compared
to the conventional parallel wiring method. The electrical con-
nection is made using only a single cable with three conductors.
The function modules perform not only the communication (con-
tactor operation and feedback, ready signal) but also the elec-
trical interlocking (for reversing and wye-delta starters) and the
timing relay function (wye-delta reversing time).
tactor operation and feedback, ready signal) but also the elec-
trical interlocking (for reversing and wye-delta starters) and the
timing relay function (wye-delta reversing time).
Communication information and control supply voltages are
passed on through ribbon cables so that the complete control
current wiring on the starter is no longer needed.
passed on through ribbon cables so that the complete control
current wiring on the starter is no longer needed.
The monitoring and maintenance of a plant is made consider-
ably easier by transmitting diverse diagnostics data from the
function modules (e. g. missing main and auxiliary voltage, local
disconnection…) through IO-Link to the higher-level control sys-
tem. Also, starters equipped for IO-Link can be conveniently
controlled from the control cabinet door using the optional oper-
ator panel.
ably easier by transmitting diverse diagnostics data from the
function modules (e. g. missing main and auxiliary voltage, local
disconnection…) through IO-Link to the higher-level control sys-
tem. Also, starters equipped for IO-Link can be conveniently
controlled from the control cabinet door using the optional oper-
ator panel.
More information:
• For IO-Link see Chapter 2 "Industrial Communication"
• For 3RA27 function modules see Chapter 3 "Controls –
• For IO-Link see Chapter 2 "Industrial Communication"
• For 3RA27 function modules see Chapter 3 "Controls –
Contactors and Contactor Assemblies" --> "Function
Modules".
Modules".
Communications integration through AS-Interface
Connection of the motor starters to the higher-level control sys-
tem is possible not only through IO-Link but also through
AS-Interface. The AS-Interface connection is recommended
wherever motor starters are used in distributed applications.
This solution also requires a communication-capable contactor
and a corresponding 3RA27 12 function module (various ver-
sions for direct-on-line, reversing and wye-delta starts). The
devices are implemented in A/B technology, making it easy to
connect up to 62 starters to an AS-i master (regardless of
whether they are direct-on-line, reversing or wye-delta starters).
tem is possible not only through IO-Link but also through
AS-Interface. The AS-Interface connection is recommended
wherever motor starters are used in distributed applications.
This solution also requires a communication-capable contactor
and a corresponding 3RA27 12 function module (various ver-
sions for direct-on-line, reversing and wye-delta starts). The
devices are implemented in A/B technology, making it easy to
connect up to 62 starters to an AS-i master (regardless of
whether they are direct-on-line, reversing or wye-delta starters).
This results in a significant reduction of wiring compared to the
conventional parallel wiring method. The electrical connection is
made using standard cables.
conventional parallel wiring method. The electrical connection is
made using standard cables.
The function modules perform not only the communication (con-
tactor operation and feedback, ready signal) but also the elec-
trical interlocking (for reversing and wye-delta starters) and the
timing relay function (wye-delta reversing time).
tactor operation and feedback, ready signal) but also the elec-
trical interlocking (for reversing and wye-delta starters) and the
timing relay function (wye-delta reversing time).
Communication information and control supply voltages are
passed on through ribbon cables so that the complete control
current wiring on the starter is no longer needed.
passed on through ribbon cables so that the complete control
current wiring on the starter is no longer needed.
More information:
• For AS-Interface see Chapter 2 "Industrial Communication"
• For 3RA27 function modules see Chapter 3 "Controls –
• For AS-Interface see Chapter 2 "Industrial Communication"
• For 3RA27 function modules see Chapter 3 "Controls –
Contactors and Contactor Assemblies" --> "Function
Modules".
Modules".
Contactors with communication interface
For assembling motor starters with communications integration
(AS-i/IO-Link) you need contactors with a communications inter-
face. These contactors are not included as standard in the
preassembled 3RA2 motor starters. A motor starter with com-
munications interface must be assembled by the customer from
individual devices.
(AS-i/IO-Link) you need contactors with a communications inter-
face. These contactors are not included as standard in the
preassembled 3RA2 motor starters. A motor starter with com-
munications interface must be assembled by the customer from
individual devices.
Complete integration in the automation landscape
As the result of the communication connection through IO-Link
or AS-i, the SIRIUS motor starters are fully integrated in the auto-
mation landscape and can draw on all the advantages of TIA
(e. g. integration in the TIA Maintenance Station).
or AS-i, the SIRIUS motor starters are fully integrated in the auto-
mation landscape and can draw on all the advantages of TIA
(e. g. integration in the TIA Maintenance Station).
Mounting
3RA2 fuseless motor starters are available:
• For mounting onto standard mounting rails TH 35 according
• For mounting onto standard mounting rails TH 35 according
to EN 60715 (depth 15 mm)
• For mounting onto busbar adapters (busbar center-to-center
clearance 60 mm, bar thickness 5 to 10 mm)
The fuseless motor starters are also suitable for screw fixing us-
ing two 3RV29 28-0B push-in lugs.
ing two 3RV29 28-0B push-in lugs.
The 3RA2 fuseless motor starters can also be configured with
the 3RV29 infeed system
the 3RV29 infeed system
(see Chapter 5 "Protection Equipment"
--> "SIRIUS 3RV2 Motor Starter Protectors up to 40 A"
■
Benefits
The 3RA2 fuseless motor starters offer a number of advantages:
• Minimum planning and assembly work and far less wiring with
• Minimum planning and assembly work and far less wiring with
the preassembled complete units (only one order number
3RA2)
3RA2)
• Plug-in connectors from the motor starter protector to all types
of SIRIUS controls, for quicker and error-free assembly of
starters with screw and spring-type connection
starters with screw and spring-type connection
• High planning reliability through consistent combination tests
for fuseless (400 V according to IEC) and fused configuration
(400 V, 500 V and 690 V according to IEC)
(400 V, 500 V and 690 V according to IEC)
• Comprehensive approvals for use world-wide
(please ask for details of availability)
• Uniform accessories for the two sizes S00 and S0
• Spring-type connection possible throughout: Enhanced
• Spring-type connection possible throughout: Enhanced
operational reliability (vibration-resistant wiring) and less
wiring work thanks to plug-in connections
wiring work thanks to plug-in connections
• Power loss 5 to 10 % smaller than for legacy 3RA1 devices,
hence lower power consumption
• Connection of starters to the control system through standard-
ized system connection (IO-Link and AS-i), for fast integration
in TIA and less wiring work. Requires communication contac-
tor versions which are not offered in pre-assembled 3RA2
starters.
in TIA and less wiring work. Requires communication contac-
tor versions which are not offered in pre-assembled 3RA2
starters.
© Siemens AG 2011