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Overview
ET 200SP motor starters
ET 200SP is a scalable and extremely flexible modular I/O system with degree of protection IP20.
As I/O modules, the ET 200SP motor starters are an integral part of this I/O system. They are switching and protection devices for 1- and 3-phase loads and are available as direct-on-line or reversing starters.
Basic functionality
All versions of the ET 200SP motor starter feature the following functionality:
- Fully pre-wired motor starters for switching and protecting any AC loads up to 5.5 kW from 48 V AC to 500 V AC
- Disconnection possible via fail-safe motor starters up to SIL 3 and PL e Cat. 4
- With self-assembling 32 A power bus, i.e. the load voltage is only fed in once for a group of motor starters
- All control supply voltages connected only once, i.e. when modules are added they are automatically connected to the next module
- Hot swapping is permissible
- Digital inputs can be used optionally via a 3DI/LC module
- Control of the motor starter from the control system and of the diagnostics status via the cyclic process image
- Diagnostics capability for active monitoring of the switching and protection functions
- The signal states in the process image of the motor starter provide information about protective devices (short circuit or overload), the switching states of the motor starter, and system faults.
Starter kit
The 3RK1908‑1SK00 starter kit is a favorably priced complete package for switching and monitoring motors in the ET 200SP system, see starter kit: ET 200SP motor starters
It contains:
- A 3RK1308-0BC00-0CP0 reversing starter (0.9 to 3 A)
- A 3RK1908-0AP00-0AP0 BaseUnit with 500 V and 24 V AC/DC infeed
- An EMC distance module (consisting of 6ES7193-6BP00-0BA0 BaseUnit plus 6ES7133-6CV15-1AM0 BU cover 15 mm)
Use of fan
For motor starters with a 12 A rated current, the 3RW4928-8VB00 fan is included in the scope of supply.
This fan can also be ordered as an option for motor starters with lower rated currents, if the boundary conditions demand this. For information on the ambient conditions for the use of motor starters, see chapter “Product features” in the Equipment Manual.
Designing interference-free motor starters
For interference-free operation of the ET 200SP station in accordance with IEC 60947‑4‑2 standard, use a dummy module before the first motor starter. The dummy module consists of the 6ES7193‑6BP00‑0BA0 or 6ES7193‑6BP00‑0DA0 BaseUnit and the 6ES7133-6CV15-1AM0 BU cover 15 mm.
The 15 mm BU cover protects the plug contacts of the BaseUnit against dirt.
Electromechanical switching devices in series with hybrid motor starters
Switching an inductive load – in particular of motors <1 kW with high inductance – with an electromechanical switching device (e.g. contactor) can cause high and steep voltage edges.
The resulting faults/damage can be prevented by first disconnecting with the hybrid motor starter or by using EMC suppression modules:
- 3RT2916-1P.. EMC suppression modules for direct mounting on the contactor (see Accessories for SIRIUS 3RT2 contactors and SIRIUS 3RH2 contactor relays)
- For motor suppression modules that are fitted in the main circuit, (see Motor suppression module)
Note:
For more information, see https://support.industry.siemens.com/cs/ww/en/view/109758696
3DI/LC control module
This is a digital input module with three inputs for local motor starter functions such as “manual local control”, “implementation of fast inputs” or “end position disconnection”.
For a list of all the functions permitted by the 3DI/LC module, see chapter “Functions” in the Equipment Manual.
The module is plugged into the front of the motor starter from which it is supplied with a 24 V DC operational voltage.
BaseUnits for motor starters
BaseUnits are components for accommodating the ET 200SP I/O modules.
The self-assembling voltage buses integrated into the BaseUnits reduce wiring outlay to the single infeed (both of auxiliary and load voltage).
All modules following on the right are automatically supplied upon plugging the BaseUnits together, if BaseUnits are inserted with a loop-through.
The rugged design and keyed connection technology enables use in harsh industrial conditions.
The BaseUnits are available with various infeeds for the motor starters.
Benefits
The ET 200SP motor starters offer a number of advantages:
- Fully integrated into the ET 200SP I/O system (including TIA Selection Tool and TIA Portal)
- High degree of flexibility when it comes to safety applications via SIMATIC F-CPU or 3SK safety relays up to SIL 3 and PL e Cat. 4
- Simple, integrated current value transmission
- Extensive parameterization by means of TIA Portal
- Increase of plant availability through fast replacement of units (easy mounting and plug-in technology)
- Greater endurance and reduced heat losses thanks to hybrid technology
- Less space required in the control cabinet (20 to 80%) thanks to high functional density (direct-on-line and reversing starters in same width)
- Extensive diagnostics and information for preventive maintenance
- Configurable inputs via 3DI/LC control module
- Less wiring and testing required as a result of integrating several functions into a single device
- Lower overheads for stock-keeping and configuration as a result of the wide setting range of the electronic overload release (up to 1:3)
- Technology has lower inherent power losses than speed-controlled drive systems, so that less cooling (and smaller footprint) are possible
Standards and approvals
- IEC/EN 60947-4-2
- UL 60947-4-2
- CSA
- ATEX
- IEC62061: SIL 3
- ISO 13849-1: PL e
- CCC approval for China
Application
The ET 200SP motor starters are suitable for the following applications:
- Switching and monitoring of
- 3-phase motors with overload and short-circuit protection (e.g. 400 V asynchronous motors for secondary drives in conveyor systems)
- 1-phase motors with overload and short-circuit protection (e.g. 230 V motors for pump applications)
- Resistive loads by means of current value and diagnostics via the maintenance function (e.g. for heaters)
- Plant monitoring and energy management in conveyor systems:
By means of the phase asymmetry and residual current detection during current measurement, drive belt monitoring and blocking monitoring are possible, for example. - Track switching and lifting table control in conveyor systems:
Track switches can be implemented by means of the quick stop function and lifting table controls by means of the “instantaneous end position disconnection” function without any laborious programming. - Safe isolation of drive from main power supply:
The isolating functions in accordance with IEC 60947-1 offer protection against inadvertent activation during plant maintenance.
Motor starters in the process industry
For the ET 200SP motor starters, special 3RK1908-0AP00-0.H0 BaseUnits are available that enable the device to be used in the ET 200SP HA I/O system, too. This is typically used in process engineering applications.
For more information, see https://mall.industry.siemens.com/mall/en/en/Catalog/Products/10398144?tree=CatalogTree.
3RK1308-0BD00-0CP0
Siemens Reversing starter High Feature; Electronic switching; Electronic overload protection up to 4 kW / 400 V; Adjustment range 2.8 .. 9 A; PROFIenergy; Option: 3DI/LC module
Visit 3RK1308-0BD00-0CP0
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