SINAMICS G120 控制单元 CU240E-2 DP-F E-型安全集成 STO F-型 SS1，SLS，SSM,SDI PROFIBUS DP 6DI，3DO，2AI，2AO，蕞大 3F-DI PTC/KTY 接口 USB 和 SD/MMC 接口 防护等 IP20 环境温度 0 至 +50°C 无功率模块​​

主要特征：

200V-240V ±10%，单相/三相，交流，0.12kW-45kW； 380V-480V±10%，三相，交流，0.37kW-250kW；

矢量控制方式，可构成闭环矢量控制，闭环转矩控制；

高过载能力，内置制动单元；

三组参数切换功能。控制功能： 线性v/f控制，平方v/f控制，可编程多点设定v/f控制，磁通电流控制免测速矢量控制，闭环矢量控制，闭环转矩控制，节能控制模式；

标准参数结构，标准调试软件；

数字量输入6个，模拟量输入2个，模拟量输出2个，继电器输出3个；

独立I/O端子板，方便维护；

采用BiCo技术，实现I/O端口自由连接；

内置PID控制器，参数自整定；

集成RS485通讯接口，可选PROFIBUS-DP/Device-Net通讯模块；

具有15个固定频率，4个跳转频率，可编程；

可实现主/从控制及力矩控制方式；

在电源消失或故障时具有"自动再起动"功能；

灵活的斜坡函数发生器，带有起始段和结束段的平滑特性；

快速电流限制（FCL），防止运行中不应有的跳闸；

有直流制动和复合制动方式提高制动性能。

保护功能：

过载能力为200%额定负载电流，持续时间3和150%额定负载电流，持续时间60；

过电压、欠电压保护；

变频器、电机过热保护；

接地故障保护，短路保护；

闭锁电机保护，防止失速保护；

采用PIN编号实现参数连锁。

其中SCL就是种语言，集成的R-S485接口或者作为总线使用其快速和的操作顺序和控制通过时间中断完整控制对时间要求严格的流程[9]作为通信模块与主站链接-PLC有较高的易操作性。

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概述CU230P‑2 Control Units

CU230P‑2 PN Control Unit

The Control Unit performs closed-loop control functions for the converter.

The CU230P-2 Control Units are designed for drives with integrated technological functions for pump, fan ａnd compressor applications.

The I/O interface, the fieldbus interfaces ａnd the additional software functions optimally support these applications. The integration of technological functions is a significant differentiating feature to the other Control Units of the SINAMICS G120 converter family.

The CU230P-2 Control Units can be operated with the following Power Modules:

• PM240‑2
• PM250

Note:

Shield plates ａnd shield connection kits are available for use in the wiring installation of Control Units ａnd Power Modules to ensure that it complies with EMC guidelines.
For more information about shield connection kits ａnd shield plates for Control Units ａnd Power Modules, please refer to section Supplementary system components.

Typical, integrated HVAC/HLK functions

• Linear ａnd quadratic torque characteristic for fluid flow ａnd positive displacement machines
• ECO mode for additional energy saving in V/f control mode
• 2 analog inputs (current/voltage can be selected) to directly connect pressure/level sensors
• 2 additional analog inputs to connect Pt1000/LG‑Ni1000/DIN‑Ni1000 temperature sensors
• Direct control of valves ａnd flaps using two 230 V AC relays
• Automatic restart
• Flying restart
• Skip frequencies
• Hibernation mode
• Load check function to monitor belts ａnd flow
• Cascade connection
• 4 integrated PID controllers (e.g. for temperature, pressure, air quality, level)
• Multi-zone controller
• Essential service mode
• Real time clock with three time generators

IOP‑2 wizards for special applications

• Pumps: Positive displacement (constant load torque) ａnd centrifugal pumps (square load torque) with ａnd without PID controller
• Fans: Radial ａnd axial fans (square load torque) with ａnd without PID controller
• Compressors: Positive displacement (constant load torque) ａnd fluid flow machines (square load torque) with ａnd without PID controller

Control Unit CU240E‑2

CU240E‑2 DP‑F Control Unit

The Control Unit performs closed-loop control functions for the converter.

The CU240E‑2 Control Unit is designed as standard Control Unit for all of the usual applications involving V/f or vector control.

• CU240E-2 series with standard I/O quantity structure ａnd integrated safety technology

The CU240E‑2 Control Unit can be combined with the following Power Modules:

• PM240‑2
• PM250

Note:

Shield plates ａnd shield connection kits are available for use in the wiring installation of Control Units ａnd Power Modules to ensure that it complies with EMC guidelines.
For more information about shield connection kits ａnd shield plates for Control Units ａnd Power Modules, please refer to section Supplementary system components.

Safety Integrated Functions

The Safety Integrated Function "Safe Torque Off" (STO) (certified according to IEC 61508 SIL 2 ａnd EN ISO 13849‑1 PL d ａnd Category 3) is already integrated into the basic versions of the CU240E‑2 series (CU240E‑2, CU240E‑2 DP, CU240E‑2 PN).

With the fail-safe variants of the CU240E-2 series (CU240E‑2 F, CU240E‑2 DP-F, CU240E‑2 PN-F), the fail-safe SINAMICS G120 converter provides five safety functions which are 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
• Safe S 1 (SS1)
  for continuous monitoring of a safe braking ramp
• Safely-Limited Speed (SLS)
  for protection against dangerous movements when a speed limit is exceeded (the CU240E‑2 DP Failsafe Control Unit has 4 selectable SLS limit values)
• 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 (CU240E‑2 DP‑F / CU240E‑2 PN‑F with PROFIsafe).

These functions can be activated by means of PROFIsafe or via the safety inputs.

None of the safety functions require a motor encoder ａnd they are thus much 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, SDI ａnd SSM 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.

CU250S‑2 Control Units

CU250S-2 Control Unit

The Control Unit performs closed-loop control functions for the converter.

The CU250S‑2 Control Units are designed as standard Control Units for all of the usual applications involving V/f or vector control.

CU250S‑2 Control Units can be used to implement all common applications involving V/f or vector control as well as applications for drives with positioning requirements. This expansion allows them to be used in lifting, swiveling, traversing or rotating applications. The positioning functionality is comparable with SINAMICS S110 servo drives.

Two points must be noted here:

• Vector control (VC) ａnd sensorless vector control (SLVC) are possible
• Encoder possible for speed ａnd position control (positioning)

The CU250S‑2 Control Units can be combined with the following Power Modules:

• PM240‑2
• PM250

Note:

Shield plates ａnd shield connection kits are available for use in the wiring installation of Control Units ａnd Power Modules to ensure that it complies with EMC guidelines.

For more information about shield connection kits ａnd shield plates for Control Units ａnd Power Modules, please refer to section Supplementary system components.

Safety Integrated Functions

The following Safety Integrated Basic Functions (certified according to IEC 61508 SIL 2 ａnd EN ISO 13849‑1 PL d ａnd Category 3) are integrated as standard in the CU250S-2 series:

• Safe Torque Off (STO)
  to protect against active movement of the drive
• Safe S 1 (SS1)
  for continuous monitoring of a safe braking ramp
• Safe Brake Control (SBC) is used to safely control a holding
  brake

The following Safety Integrated Extended Functions (certified according to IEC 61508 SIL 2 ａnd EN ISO 13849‑1 PL d ａnd Category 3) are optionally available for the CU250S-2 series:

• Safely-Limited Speed (SLS)
  for protection against dangerous movements when a speed limit is exceeded
• 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.

These functions can be activated by means of PROFIsafe or via the safety inputs.

None of the safety functions require a motor encoder ａnd they are thus much 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, SDI ａnd SSM 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.

设计CU230P‑2 HVAC, CU230P‑2 DP ａnd CU230P‑2 PN Control Units

​西门子控制单元6SL3244-0BB13-1PA1

西门子变频器SINAMICS G120的效率优化功能介绍如下：
1. 效率优化功能
西门子变频器SINAMICS G120的效率优化是在矢量控制中负载较轻时，为了提高电机效率，降低电机励磁损耗而采取的弱磁控制。可以降低电机损耗，减少电机噪声。效率优化适用于变 转矩负载或轻载应用，与V/F控制中的ECO功能类似，目的均为降低电机磁通，提高电机效率;
2. 参数设置
西门子变频器SINAMICS G120的效率优化功能通过设置参数来实现，P1570，即磁通设定值;P1580，即效率优化。
3. 效率功能优化特点
西门子变频器SINAMICS G120的效率优化可以降低负载范围内的电机损耗，减少电机发车的噪音。它是种主动弱磁的手段，用来达到节能的效果。只有在动态响应要求较低的应用中， 才使用该功能。优化后的磁通量会与弱磁控制器输出的磁通量比较，较小的值起作用。效率优化功能会对弱磁产生影响，延长进入恒功率段的时间。

西门子变频器SINAMICS G120系列功能强大，操作简单，扩展性强，具有多种参数可供用户进行设定。通过合理的设定相关参数，西门子变频器G120和它的负载可以在正常的工作状态下运行，用户也可以通过面板来监视它的工作过程。

原创作者：河南兆阳自动化科技有限公司