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6SL3225-0BE35-5UA0
西门子产品订货号：6SL32250BE355UA0

西门子产品价格：168  RMB

西门子产品净重：1.100 Kg

西门子产品承诺：质保一年，原装*

西门子产品尺寸：270.00 x 225.00 x 85.00

概述

SINAMICS G120C, frame sizes FSAA to FSF, with Inligent Operator Panel IOP

SINAMICS G120C compact inverters offer a well-balanced combination of features to address a wide range of applications. They are compact, rugged devices that are easy to operate and can be optionally equipped with a basic or advanced operator panel.

SINAMICS G120C inverters are especially suitable when it comes to meeting the requirements of system integrators, OEMs and distributors regarding high productivity and tailored performance.

优势

• Compact design
• Side-by-side design
• High power density, low envelope dimensions
• Simple installation in the tightest space
• Low space requirement
• Use in small control cabinets, close to the machine
• Optimized parameter set
• Optimized commissioning
• Getting Started document
• BOP‑2 or IOP operator panels can be used
• Integrated USB connection
• Simple and fast software parameter assignment
• Simple to use during commissioning and in operation
• Minimized training costs, existing SINAMICS know-how can be used
• High degree of service friendliness, simple maintenance
• Plug-in terminals
• Cloning function using BOP‑2, IOP or memory card
• Operating hours counter for "drive on" and "motor on"
• Fast mechanical installation
• Intuitive standard commissioning
• Component of Totally Integrated Automation
• Energy-efficient, sensorless vector control
• Automatic flux reduction with V/f ECO
• Integrated energy saving computer
• Safety Integrated (STO)
• Communications versions with PROFINET / EtherNet/IP, PROFIBUS DP, USS/Modbus RTU
• Coated modules
• Operation up to an ambient temperature of 60 °C (140 °F)

设计

SINAMICS G120C is a compact converter for control cabinet mounting in IP20 degree of protection where the Control Unit (CU) and Power Module (PM) function units are combined in one device.

The compact mechanical design and the high power density allow these devices to be installed in machine control enclosures and control cabinets for maximum space utilization. The SINAMICS G120C compact converter can be butt-mounted directly, without derating at temperatures up to 40 °C (104 °F).

SINAMICS G120C, frame size FSAA with BOP-2

SINAMICS G120C can be integrated into the widest range of applications, either using the integrated digital and analog inputs or via the integrated fieldbus interface (available in USS, Modbus RTU, PROFIBUS, PROFINET / EtherNet/IP versions). Especially the product versions with integrated PROFIBUS/PROFINET interface make full integration into the Siemens TIA family possible, therefore allowing the advantages of the seamless TIA product family to be fully utilized. SINAMICS G120C devices are preset in the factory so that they can be immediay connected to PROFIBUS and/or PROFINET fieldbus systems without parameterization.

SINAMICS G120C is also equipped with the safety function STO (Safe Torque Off) as standard, which is used to safely stop drives. As a consequence, machine manufacturers can simply comply with current machinery directives with minimum associated costs.

SINAMICS G120C can control asynchronous (induction) motors in the power range from 0.37 kW up to 132 kW (0.5 hp to 200 hp). Reliable and efficient motor operation is achieved by using state-of-the-art IGBT technology combined with vector control. The extensive range of functions integrated in the SINAMICS G120C also offers a high degree of protection for the converter and motor.

Line-side components

Line reactors

Line reactors smooth the current drawn by the converter and thus reduce harmonic components in the line current. Through the reduction of the current harmonics, the thermal load on the power components in the rectifier and in the DC-link capacitors is reduced as well as the harmonic effects on the supply. The use of a line reactor increases the service life of the converter.

Recommended line-side power components

Standard fuses can be used for the SINAMICS G120C. These must be dimensioned to comply with local regulations. In this chapter, you will find recommended components such as fuses and circuit breakers in compliance with IEC and UL regulations.

DC link components

Braking resistors

Excess energy in the DC link is dissipated in the braking resistor. The braking resistors are designed for use with the SINAMICS G120C. This has an integrated braking chopper (electronic switch).

Load-side power components

Output reactors

Output reactors reduce the rate of voltage rise (dv/dt) and the height of the current peaks, and enable longer motor cables to be connected.

Supplementary system components

Inligent Operator Panel IOP

Graphics-based, user-friendly and powerful operator panel for commissioning and diagnostics as well as local operator control and monitoring of SINAMICS G120C.

Basic Operator Panel BOP-2

A 2-line display to provide support when commissioning and troubleshooting the drive. The drive can be locally controlled.

Memory card

The parameter settings for an inverter can be stored on the SINAMICS SD memory card. When service is required, e.g. after the inverter has been replaced and the data have been downloaded from the memory card the drive system is immediay ready for use again. The associated memory card holder is integrated in the inverter.

PC inverter connection kit 2

For controlling and commissioning an inverter directly from a PC if the STARTER commissioning tool or SINAMICS Startdrive has been installed on the PC.

Spare parts

Shield plates

A set of shield plates is included in the scope of delivery for the motor and signal cables corresponding to the frame size of the SINAMICS G120C, and can also be ordered as spare parts.

Spare parts kit

This kit comprises four I/O terminals, one RS485 terminal, two pairs of Control Unit doors (1 × PN and 1 × other communication versions) and one blanking cover.

Set of connectors

A set of connectors for the line feeder cable, braking resistor and motor cable can be ordered corresponding to the frame size of the SINAMICS G120C inverter.

Roof-mounted fan

A roof-mounted fan (at the top of the device) comprising a pre-assembled unit with holder and fan can be ordered corresponding to the frame size of the SINAMICS G120C.

Fan unit

A replacement fan (at the rear of the device; heat sink) comprising a pre-assembled unit with holder and fan can be ordered corresponding to the frame size of the SINAMICS G120C.

集成

Connection example for SINAMICS G120C

USS/Modbus RTU communication interface

PROFIBUS DP communication interface

PROFINET, EtherNet/IP communication interface

6SL3225-0BE35-5UA0
西门子产品订货号：6SL32250BE355UA0

西门子产品价格：168  RMB

西门子产品净重：1.100 Kg

西门子产品承诺：质保一年，原装*

西门子产品尺寸：270.00 x 225.00 x 85.00

PM240, PM240‑2 and PM250 Power Modules

西门子产品订货号：6SL32250BE355UA0

西门子产品价格：168  RMB

西门子产品净重：1.100 Kg

西门子产品承诺：质保一年，原装*

西门子产品尺寸：270.00 x 225.00 x 85.00

距离控制技术在电梯控制系统的应用

　　1引言

　　现代生活、生产和建筑的蓬勃发展，大大推进了电梯技术的发展，从而对电梯控制系统提出了越来越高的要求。

　　可编程序控制器(PLC)与变频(VVVF)调速技术相结合的电梯控制系统，以其运行可靠、使用维修方便、抗干扰性强、调速性能优等特点被中小型电梯厂家广泛采用。此类系统对电梯运行曲线的控制大多采用速度端子组合的多段速控制方式输出固定的电梯运行曲线，电梯平层之前均有慢速爬行的过程。

　　电梯业*多采用自行研发的电梯控制器，采用距离控制的直接停靠方式。而PLC因其自身编程指令及程序扫描时间的限制，很难编制距离控制的程序。艾默生CT推出的EV3100电梯变频器，不仅具备通用变频器的调速功能及普通的电梯功能。*的层高数据寄存器，通过参数设置即可实现距离控制。

　　2距离控制的基本原理

　　传统的给定减速距离的控制方式的运行曲线如图1所示[1]，x轴为电梯运行过程的时间、y轴为运行速度。当电梯接收到系统的启动信号后，系统加速到额定速度以后，匀速运行，当系统收到减速信号后开始减速，到达门区后开始爬行，至平层后停止。整个运行曲线表现为S型。

　　上述运行曲线是由控制系统预先设定好的，一般额定速度为1m/s的时候运行单条曲线，速度为1.5m/s的时候运行两条曲线。而由控制系统根据停车距离自动生成电梯运行曲线的控制方式一般称之为“距离控制”，其运行曲线如图2所示。

　　3控制系统硬件设计

　　3.1控制系统组成

　　由图3可知，该系统主要由以下几部分组成：PLC、变频器、曳引机、门机等。PLC是控制系统的核心。[2]PLC根据输入的呼梯信号和目前电梯所处的位置自动确定电梯的运行方向及速度，变频器根据PLC的速度指令控制曳引电动机的转速，到达目的层后，自动平层、停车、开关门，在运行过程中输出电梯的楼层位置和运行方向，同时完成对呼梯信号的登记、保存和消除等工作。对电梯运行中的一些特殊情况(如急停、超载、冲顶、蹲底等)自动进行处理和报警。

　　3.2硬件选型

　　以一栋15层大楼为例，其电梯控制系统实际需要输入60点，输出62点。选用三菱公司的FX2N-128MR型PLC。这种机型有编程指令100多条，内置 8K步RAM寄存器，并配有相应的编程软件GX Developer，不仅可以通过手持编程器对PLC编程，也可在个人PC机上进行编程[3]。在电梯运行过程中，可通过程序内部辅助继电器的状态监控电梯运行状态，现场调试十分方便。

　　变频器选用艾默生CT的EV3100电梯变频器。除了矢量控制、转差补偿和负载转矩自适应等功能，还具有抱闸控制及检测、电梯超速检测等电梯功能。为实现闭环矢量控制、提高系统的动态性能和实现零速抱闸控制，在曳引电动机轴端加装旋转编码器。该编码器信号不仅作为曳引电动机的速度反馈，利用EV3100变频器的分频功能，还可实现对电梯的数字位移控制。系统硬件电路如图4所示。

　　4距离控制运行原理

　　(1)变频器在接收到控制器发来的运行命令(FWD)和设定楼层指令(FLE, F1～F6)时，输出接触器吸合指令(CR);

　　(2)变频器检测到接触器吸合(CSM)后，再经过延时，打开变频器，输出释放抱闸的命令(BR)，和变频器运行中信号(Y2);

　　(3)经过抱闸打开延时时间T2后，抱闸*打开，变频器开始按S曲线加速运行;

　　(4)电梯运行过程中可以不断响应其它设定楼层指令(FLE,F1～F6)，变频器会根据能否正常减速停车来选择*楼层停靠;

　　(5)到达曲线减速点后，变频器开始减速停车。进入平层一定距离(F4.07平层距离调整)后，速度减为0，经延时后，变频器输出抱闸关闭命令(BR)，同时输出电梯停车信号(Y1)，要求控制器切除运行命令(FWD);

　　(6)控制器接收到电梯停止信号后，经时间延时切除运行命令(FWD)，变频器封锁PWM后输出停机状态信号(Y2);

　　(7)停机状态(Y2)有效后，经时间延时，输出电流为0，变频器输出释放接触器命令(CR)，至此一次运行过程结束。