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西门子G120模块式变频器
2020-07-21 20:15:54 [181]
无论泵送、通风、压缩、移动还是过程加工:SINAMICS G120都是满足最广泛要求的通用驱动器。它在通用机械制造以及汽车、纺织和包装行业都有着明显优势。
其模块化的设计以及 0.55 kW 至 250 kW 的大功率范围将始终确保您可以为具体应用配置最佳的变频器。同样显而易见是,使用 SINAMICS G120,您将受益于模块化设计所带来的众多可能性 — 包括因减少备件库存而产生的灵活性和成本节约。此外,它还一直保持高度的用户友好性 — 从安装到维护。SINAMICS G120 是 SINAMICS 驱动器全系列的组成部分。
SINAMICS 产品系列的优势概览:
• 额定功率范围宽:0.12 kW ~ 85 MW
• 提供低压型和中压型以及直流型
• 高度的灵活性和组合性
• 轻松连接到 SIMATIC 控制系统,并且可无缝集成到自动化架构和全集成自动化系统中
• 更高级别的标准安全集成理念
• 通用的硬件和软件平台,可提供统一的标准功能
• 所有驱动器采用相同的配置工具
– SIZER 软件,用于工程组态
– STARTER / SINAMICS Startdrive 软件,用于参数设置和调试

概述

The SINAMICS G120 frequency converter is designed to provide precise and cost-effective speed/torque control of three-phase motors.
With different device versions (frame sizes FSA to FSG) in a power range from 0.37 kW to 250 kW, it is suitable for a wide variety of drive solutions.
Example: SINAMICS G120, frame sizes FSA, FSB and FSC; each with Power Module, CU240E‑2 F Control Unit and Basic Operator Panel BOP-2
Example: SINAMICS G120, frame sizes FSD, FSE, FSF and FSG; each with Power Module, CU240E‑2 F Control Unit and Intelligent Operator Panel IOP‑2
Operator-friendly design
SINAMICS G120 is a modular converter system that essentially comprises two function units:
  • Control Unit (CU)
  • Power Module (PM)
The Control Unit controls and monitors the Power Module and the connected motor using several different closed-loop control types that can be selected. It supports communication with a local or central controller and monitoring devices.
The Power Module supplies the motor in the power range 0.37 kW to 250 kW. It features state-of-the-art IGBT technology with pulse-width-modulated motor voltage and selectable pulse frequency. Comprehensive protection functions provide a high degree of protection for the Power Module and the motor.
The Control Units can be combined with the following Power Modules:
Control Units Power Modules degree of protection IP20
  PM240‑2 PM250
CU230P‑2 ✓  ✓ 
CU240E‑2 ✓  ✓ 
CU250S‑2 ✓  ✓ 

 
Safety Integrated
SINAMICS G120 standard converters are available in different versions for safety-related applications. The PM240‑2 and PM250 Power Modules are already designed for Safety Integrated. A drive can be combined with a Control Unit with safety functions (see overview) in order to create a Safety Integrated drive. The availability of Safety Integrated functions depends on the type of Control Unit.
Control Unit Basic Safety functions Extended Safety functions
  STO SS1 SBC 1) SLS SDI SSM
CU230P‑2
CU240E‑2 ✓ 
CU240E‑2 F ✓  ✓  ✓  ✓  ✓ 2)
CU250S‑2 ✓  ✓  ✓  ✓ 3) ✓ 3) ✓ 3)


1) The SBC function can be utilized only if a Safe Brake Relay is installed.
2) SSM possible only for CU240E‑2 DP‑F / CU240E‑2 PN‑F Control Units with PROFIsafe.
3) With license for Extended Safety functions.
Basic Safety functions (certified according to IEC 61508 SIL 2, and EN ISO 13849‑1 PL d and Category 3)
  • Safe Torque Off (STO)
    to protect against active movement of the drive
  • The PM240‑2 Power Modules, frame sizes FSD to FSG, offer additional terminals to achieve STO acc. to IEC 61508 SIL 3 and EN ISO 13489‑1 PL e and Category 3.
  • Safe Stop 1 (SS1)
    for continuous monitoring of a safe braking ramp
  • Safe Brake Control (SBC) is used to safely control a holding
    brake. When enabled, SBC is always activated at the same time as STO. The Safe Brake Relay is used for SBC.
Extended Safety functions (certified according to IEC 61508 SIL 2 and EN ISO 13849‑1 PL d and Category 3)
  • Safely-Limited Speed (SLS)
    for protection against dangerous movements on exceeding a speed limit
  • Safe Direction (SDI)
    This function ensures that the drive can only rotate in the selected direction.
  • Safe Speed Monitor (SSM)
    This function signals if a drive operates below a specific speed/feed velocity.
Basic Safety and Extended Safety functions can be activated via PROFIsafe or by means of the safety inputs.
None of the safety functions require a motor encoder and they are thus cheaper and easier to implement. Existing systems in particular can be simply updated with safety technology without the need to change the motor or mechanical system.
The Safe Torque Off (STO) function can be used without restriction for all applications. The SS1, SLS, SSM and SDI functions are only permissible for applications where the load can never accelerate when the converter is switched off. They are therefore not permitted for applications involving pull-through loads such as hoisting gear and unwinders.
Further information can be found in the section Safety Integrated.
Efficient Infeed Technology
The innovative Efficient Infeed Technology is employed in PM250 Power Modules. This technology allows the energy produced by motors operating in generator mode connected to standard converters to be fed back into the supply system. For control cabinets, an additional temperature rise can be avoided and the amount of space required can be reduced due to the fact that components such as braking resistors, braking choppers and line reactors can be eliminated. Further, wiring and engineering costs are significantly reduced. At the same time, energy consumption can be reduced and ongoing operating costs noticeably reduced.
Innovative cooling concept and varnishing of electronic modules
The new cooling system and varnishing of the electronic modules significantly increases the service life or useful life of the device.
  • Disposal of all heat losses via an external heat sink
  • Consequential convection cooling of the Control Unit, electronic modules are not located in the air duct
  • All cooling air from the fan is directed through the heat sink
Energy efficiency
Integrated technologies help when optimizing the energy usage of the plant or system referred to the particular application:
  • Energy-efficient vector control with or without sensors
  • Automatic flux reduction with V/f ECO mode
  • Integrated energy saving computer
Further information can be found in the section Energy efficiency.
 

优势

  • Modularity ensures flexibility for a drive concept that is fit for the future
    • Control Unit can be hot-swapped
    • Pluggable terminals
    • The modules can be easily replaced, which makes the system extremely service friendly
  • The integrated safety functions significantly reduce the costs when integrating drives into safety-oriented machines or systems
  • The PM240‑2 Power Modules, frame sizes FSD to FSG, offer additional terminals to achieve STO acc. to IEC 61508 SIL 3 and EN ISO 13489‑1 PL e and Category 3.
  • Communications-capable via PROFINET or PROFIBUS with PROFIdrive Profile 4.0
    • Plant-wide engineering
    • Easy to handle
  • Wireless commissioning, operation and diagnostics via mobile device or laptop thanks to the optional SINAMICS G120 Smart Access
  • Connection to the Cloud MindSphere with the optionally available SINAMICS CONNECT 300 IoT Gateway
  • The innovative circuit design (bidirectional input rectifier with "pared-down" DC link) allows the kinetic energy of a load to be fed back into the supply system when PM250 Power Modules are used. This feedback capability provides enormous potential for savings because generated energy no longer has to be converted into heat in a braking resistor
  • Integrated USB interface for simplified, local commissioning and diagnostics
  • With Control Unit CU230P‑2: Application-specific functions for pumps, fans and compressors
    Integrated are, e.g.:
    • 4 freely-programmable PID controllers
    • Application-specific wizards
    • Pt1000-/LG-Ni1000-/DIN-Ni1000 temperature sensor interface
    • 230 V AC relay
    • 3 freely-programmable digital time switches
Detailed information can be found in Catalog D 35.
  • With CU250S‑2 Control Units: Integrated positioning functionality (basic positioner EPos) supports process-related implementation of positioning tasks with a high dynamic response. Positioning can be implemented with an incremental and/or absolute encoder (SSI)
    • Encoder interfaces DRIVE‑CLiQ, HTL/TTL/SSI (SUB‑D) and resolver/HTL (terminal)
    • Vector control with or without sensors
  • Integrated control functionality by using BICO technology
  • An innovative cooling concept and coated electronic modules increase robustness and service life
    • External heat sink
    • Electronic components are not located in air duct
    • Control Unit that is completely cooled by convection
    • Additional coating of the most important components
  • Simple unit replacement and quick copying of parameters using an optional Operator Panel or an optional memory card
  • Quiet motor operation as a result of the high pulse frequency
  • Compact, space-saving design
  • Simple adaptation to 50 Hz or 60 Hz motors (IEC or NEMA motors)
  • 2/3-wire control for static/pulsed signals for universal control via digital inputs
  • Certified worldwide for compliance with CE, UL, cUL, RCM, SEMI F47 and Safety Integrated according to IEC 61508 SIL 2 and EN ISO 13849‑1 PL d and Category 3
 

设计

Application-orientated design of SINAMICS G120
SINAMICS G120 standard converters are modular converters for standard drives. Selection of the SINAMICS G120 is reduced to two or three steps thanks to the modular system used.
Selecting the Control Unit
The optimum Control Unit is selected first, based on the number of I/Os and any additional functions required such as Safety Integrated or HVAC. The communication options are already integrated and do not have to be additionally ordered or plugged in. Three product series are available corresponding to the particular application.
CU230P‑2 Control Units
The CU230P‑2 Control Units are especially designed for pump, fan, and compressor applications.
Control Unit CU240E‑2
The CU240E‑2 Control Unit is suitable for a wide range of applications in general machine construction, such as conveyor belts, mixers and extruders.
CU250S‑2 Control Units
The CU250S‑2 Control Units are suitable for applications involving single drives with exacting speed control requirements such as extruders and centrifuges, and for positioning tasks such as conveyor belts, lifting/lowering devices, etc. They can also be used to implement multi-motor drives without DC coupling such as wire-drawing machines and simple material lines
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