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产品 价格：【薄利多销，行业zui低】
产品 货期：【库存销售，现买现卖】
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万喜堂app下载彩票 6SL3210-1KE22-6UP1
西门子产品订货号：6SL32101KE226UP1
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
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.
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.
Connection example for SINAMICS G120C
USS/Modbus RTU communication interface
PROFIBUS DP communication interface
PROFINET, EtherNet/IP communication interface
万喜堂app下载彩票 6SL3210-1KE22-6UP1
西门子产品订货号：6SL32101KE226UP1
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
| Control Units | Power Modules degree of protection IP20 | |
|---|---|---|
| PM240‑2/PM240 | PM250 | |
| CU230P‑2 | ✓ | ✓ |
| CU240E‑2 | ✓ | ✓ |
| CU250S‑2 | ✓ | ✓ |
PM240, PM240‑2 and PM250 Power Modules
| Rated power 1) | Rated output current I rated 2) | PM240‑2 Power Modules 3) All CUs pluggable | PM250 All CUs pluggable | |
|---|---|---|---|---|
| kW | hp | A | Article No. | Article No. |
| 200 ... 240 V 1 AC/3 AC | ||||
| 0.55 | 0.75 | 3.2 | 6SL3210-1PB13-0❒L0 | – |
| 0.75 | 1 | 4.2 | 6SL321❒-1PB13-8❒L0 | – |
| 1.1 | 1.5 | 6 | 6SL3210-1PB15-5❒L0 | – |
| 1.5 | 2 | 7.4 | 6SL3210-1PB17-4❒L0 | – |
| 2.2 | 3 | 10.4 | 6SL321❒-1PB21-0❒L0 | – |
| 3 | 4 | 13.6 | 6SL3210-1PB21-4❒L0 | – |
| 4 | 5 | 17.5 | 6SL321❒-1PB21-8❒L0 | – |
| 200 ... 240 V 3 AC | ||||
| 5.5 | 7.5 | 22 | 6SL3210-1PC22-2❒L0 | – |
| 7.5 | 10 | 28 | 6SL3210-1PC22-8❒L0 | – |
| 11 | 15 | 42 | 6SL3210-1PC24-2UL0 | – |
| 15 | 20 | 54 | 6SL3210-1PC25-4UL0 | – |
| 18.5 | 25 | 68 | 6SL3210-1PC26-8UL0 | – |
| 22 | 30 | 80 | 6SL3210-1*-0UL0 | – |
| 30 | 40 | 104 | 6SL3210-1PC31-1UL0 | – |
| 37 | 50 | 130 | 6SL3210-1PC31-3UL0 | – |
| 45 | 60 | 154 | 6SL3210-1PC31-6UL0 | – |
| 55 | 75 | 178 | 6SL3210-1PC31-8UL0 | – |
| 380 ... 480 V 3 AC | ||||
| 0.37 4) | 0.5 | 1.3 | – 4) | – |
| 0.55 | 0.75 | 1.7 | 6SL3210-1PE11-8❒L1 | – |
| 0.75 | 1 | 2.2 | 6SL3210-1PE12-3❒L1 | – |
| 1.1 | 1.5 | 3.1 | 6SL3210-1PE13-2❒L1 | – |
| 1.5 | 2 | 4.1 | 6SL3210-1PE14-3❒L1 | – |
| 2.2 | 3 | 5.9 | 6SL3210-1PE16-1❒L1 | – |
| 3 | 4 | 7.7 | 6SL321❒-1PE18-0❒L1 | – |
| 4 | 5 | 10.2 | 6SL3210-1PE21-1❒L0 | – |
| 5.5 | 7.5 | 13.2 | 6SL3210-1PE21-4❒L0 | – |
| 7.5 | 10 | 18 | 6SL321❒-1PE21-8❒L0 | 6SL3225-0BE25-5AA1 |
| 11 | 15 | 26/25 | 6SL3210-1PE22-7❒L0 | 6SL3225-0BE27-5AA1 |
| 15 | 20 | 32 | 6SL321❒-1PE23-3❒L0 | 6SL3225-0BE31-1AA1 |
| 18.5 | 25 | 38 | 6SL3210-1PE23-8❒L0 | 6SL3225-0BE31-5❒A0 |
| 22 | 30 | 45 | 6SL3210-1PE24-5❒L0 | 6SL3225-0BE31-8❒A0 |
| 30 | 40 | 60 | 6SL3210-1PE26-0❒L0 | 6SL3225-0BE32-2❒A0 |
| 37 | 50 | 75 | 6SL3210-1PE27-5❒L0 | 6SL3225-0BE33-0❒A0 |
| 45 | 60 | 90 | 6SL3210-1PE28-8❒L0 | 6SL3225-0BE33-7❒A0 |
| 55 | 75 | 110 | 6SL3210-1PE31-1❒L0 | 6SL3225-0BE34-5❒A0 |
| 75 | 100 | 145 | 6SL3210-1PE31-5❒L0 | 6SL3225-0BE35-5❒A0 |
| 90 | 125 | 178 | 6SL3210-1PE31-8❒L0 | 6SL3225-0BE37-5❒A0 |
| 110 | 150 | 205 | 6SL3210-1PE32-1❒L0 | – |
| 132 | 200 | 250 | 6SL3210-1PE32-5❒L0 | – |
| 160 3) | 250 | 302 | 6SL3224-0XE41-3UA0 | – |
| 200 3) | 300 | 370 | 6SL3224-0XE41-6UA0 | – |
| 250 3) | 400 | 477 | 6SL3224-0XE42-0UA0 | – |
| 500 ... 690 V 3 AC | ||||
| 11 | 10 | 14 | 6SL3210-1PH21-4❒L0 | – |
| 15 | 15 | 19 | 6SL3210-1PH22-0❒L0 | – |
| 18.5 | 20 | 23 | 6SL3210-1PH22-3❒L0 | – |
| 22 | 25 | 27 | 6SL3210-1PH22-7❒L0 | – |
| 30 | 30 | 35 | 6SL3210-1PH23-5❒L0 | – |
| 37 | 40 | 42 | 6SL3210-1PH24-2❒L0 | – |
| 45 | 50 | 52 | 6SL3210-1PH25-2❒L0 | – |
| 55 | 60 | 62 | 6SL3210-1PH26-2❒L0 | – |
| 75 | 75 | 80 | 6SL3210-1PH28-0❒L0 | – |
| 90 | 100 | 100 | 6SL3210-1PH31-0❒L0 | – |
| 110 | 100 | 115 | 6SL3210-1PH31-2❒L0 | – |
| 132 | 125 | 142 | 6SL3210-1PH31-4❒L0 | – |
| Heat sink variant | ↑ | |||
| Standard | 0 | |||
| Push Through | 1 | |||
| Integrated line filter | ↑ | ↑ | ||
| Without | (for IT systems) | U | U | |
| Class A | (for TN systems) | A | A | |
| Class B | (for TN systems) | – | Integrated line filter not available, as external option only | |
西门子产品订货号：6SL32101KE226UP1
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
1 前言
可编程逻辑控制器(PLC)是八十年代发展起来的是集自动化技术、计算机技术和通信技术于一体的新一代工业控制装置。
根据我国北方水资源相对缺乏的现状，利用PLC控制水泵进行直接供水，实现无塔供水，故恒压供水显得尤为重要。
2 硬件设计
2.1 系统控制框图
(图 1)
2.2 系统基本工作原理
首先根据供水楼层来设定供水压力，以保证zui高层有足够的压力。因为当用户用量增大时，压力传感器检测到的水压就变小，这时实际水压与设定水的偏差越大。根据偏差的大小来决定启动泵的数量，此时必须加大流量，以满足用户的增多;当用水量减少时，输出的压力就会增加，偏差越小，根据这个偏差值来决定关闭泵的数量，用来zui大限度地节省电能。当发生火灾时，四台泵同时起动，以保证zui大的供水量。利用泵的数量来满足用水量以实现恒压供水。
2.3 系统硬件配置
三菱变频器 1台 热继电器 4台
接触器 8台 变频电机 4台
空气开关 1只 三相保险盒 6套
上位计算机 1套 模拟量模块 1 块
三菱通讯卡 1套 三菱PLC 1台
2.4 系统软启、软停主电路：(见图2)
(图2)
2.5 系统结构框图
为了实现恒压供水，要求这种控制系统具有很大的灵活性。控制参数易于变动，数据记录功能完善。针对这些要求与特点，确定控制系统采用两级监控制方案，结构图如右(见图3)：
(图 3)
2.6 系统工作方式选择
该系统可以用*转换开关选定系统手动、自动工作方式。手动、自动时每台水泵均可由变频器进行软起动、软停止，四台水泵二用二备、并能自动识别。当用水量小时一台水泵运行，用水量大时二台水泵运行，火警时四台水泵同时供水。利用程序进行定时选择水泵工作方式。在自动运行过程中，若两台水泵供水压力低时既可由软件自动嵌入第三台水泵工作，也可手动起动第三台水泵，投入运行。在手、自动时每台水泵均由变频器按水泵工作曲线切换，通过对变频器编程。编程思路：转速n小时频率f低，但频率f不能低于6Hz, 否则电机会处于弱磁状态;n增加时f上升，n稳定在额定值时f = 50Hz(或略低于50 Hz)，变频器切换完成。
3 软件设计
3.1 控制程序流程图(见图4)
(图 4)
3.2 PID调节以实现恒压供水
该系统为了克服内存容量的不足，我们选用增量式PID控制，即输出量是两个采样周期值之差e(k)，控制器的输出增量为△U(k)。表达式如下：
△U(k)=U(k)-U(k-1)
=Kp{e(k)-e(k-1)+ T* e(k ) /T2+T0[e(k)-2e(k-1)+e(k-2) ]/T｝
=Kp[(1+T/T2+T0/T)*e(k)-(1+2T0/T)*e(k-1)+T0*e(k-2)/T]
=K1*e(k)-K2*e(k-1)+K3*e(k-2)
其中：K1、K2、 K3为经验系数，需要现场调试修改。
e(k)、 e(k-1)、e(k-2)为对应采样时刻的偏差。
当用水量增加时，Uf减小，e(k)增大，需要添加水泵供水，以达到设定水压，通过这种方法实现恒压供水。增量式控制程序框图(见图5)。
3. 3 数字滤波来保证采样数据的准确性
为了防止瞬时抖动，提高采样数据的准确性，采用两种处理方法：
1、当采样值比zui大值还大时，我们取zui大值为这次的采样值。
2、考虑到精度的要求不高，我们采用数字滤波中的平均值滤波方法。流程图如下：
(图 5)
(图 6)
3.4 编程思路及安全连锁
工艺控制(控制对象主要是对4台水泵的控制)按用户用水量的大小，可自动完成工作过程的控制。利用优先级控制：压力的优先级比时间的优先级高，来确保压力恒定。通过对变频器的编程，使变频器按照水泵的特性曲线来工作，从而有效地使水泵的起动和停止较为平稳。换句话说，可实现水泵的软起、软停。
为了降低系统成本，打破常规思维，我们对热继电器的状态不进行检测，利用热继电器的常闭触点(用继电器控制思路)对它所保护电机的接触器线圈实行硬件闭锁，利用程序对各控制电机实行软件闭锁。根据配水厂的要求可现场任意修改联锁方式：下位机程序联锁、上位机 。
万喜堂app下载
请输入计算结果（填写阿拉伯数字），如：三加四=7 
万喜堂app下载
