UDC920AE101 3BHB022793R0001自动化模块备件
数据传输通过
尽可能快的显式消息（即外围设备请求、主机响应、外围设备请求等）进行，但仅在两个设备之间进行。MUT仅基于消息类型。标准命令和数据链路命令可以比MUT更快地从同一外围设备传输，并且仍然正常。但是，两个连续的数据链路命令必须由MUT分开。DriveLogix见DriveLogix 5720控制器用户手册，出版物20DUM002。自动化出版物PFLEXRM002DENE2013年8月53详细驱动器配置和操作第1章下垂下垂用于“卸载”负载，通常在应用中存在两个电机的软耦合时使用。
主驱动速度可调节
从动件使用下垂，因此不会与主驱动“对抗”。降速块的输入来自限速前调速器的扭矩输出。下降块的输出降低了速度参考值。参数86[Spd Reg Droop]设置在满载扭矩时速度基准降低的基本电机速度量。[Spd Reg Droop]以单位扭矩/单位速度为单位。例如，当[Spd Reg Droop]设置为0.1并且驱动器以100%额定电机扭矩运行时，下垂块将从速度参考值中减去10%。动态制动参见第20页的总线调节/制动。该模块包含内部的二阶热模型。关于电阻器尺寸，请参阅PowerFlex动态制动电阻器计算器选择指南，出版物PFLEXAT001。效率下表显示了PWM变频驱动器的典型效率，无论大小。驱动器在满载和全速时效率最高。电子齿轮传动参见第82.86页位置回路从动件（电子齿轮传动）Droop Spd Reg Droop 10 20 30 40 50 60 70 80 90 100%速度/%负载%效率vs.速度vs.速度。
Data transmission via
Explicit messages (that is, peripheral requests, host responses, peripheral requests, etc.) occur as quickly as possible, but only between two devices. MUT is based on message type only. Standard commands and data link commands can be transmitted from the same peripheral faster than the MUT, and are still normal. However, two consecutive data link commands must be separated by the MUT. DriveLogix See DriveLogix 5720 Controller User's Manual, publication 20DUM002. Automation publication PFLEXRM002DENE August 53, 2013 Detailed drive configuration and operation Chapter 1 Sagging is used for "unloading" loads, usually when there is soft coupling of two motors in the application.
Main drive speed adjustable
The follower uses droop, so it will not "fight" with the main drive. The input of the speed droop block comes from the torque output of the governor before the speed limit. The output of the descent block reduces the speed reference value. Parameter 86 [Spd Reg Droop] sets the amount of basic motor speed reduced by the speed reference at full load torque. [Spd Reg Droop] Unit torque/unit speed. For example, when [Spd Reg Droop] is set to 0.1 and the drive is running at 100% rated motor torque, the Droop block will subtract 10% from the speed reference value. Dynamic braking See Bus adjustment/braking on page 20. The module contains an internal second-order thermal model. For resistor dimensions, refer to the PowerFlex Dynamic Braking Resistor Calculator Selection Guide, publication PFLEXAT001. Efficiency The following table shows the typical efficiency of PWM variable frequency drives, regardless of size. Drives are most efficient at full load and full speed. For electronic gear drive, see page 82.86 Position Loop Follower (electronic gear drive) Droop Spd Reg Droop 10 20 30 40 50 60 70 80 90 100% speed/% load% efficiency vs. speed vs. speed.
