工业PLC控制三:标准工业控制柜

GM has designed several categories of standard industrial control panels. Where an Off-theshelf industrial product will not serve the function a common panel design is created which can be purchased and used by projects just as if it were any other industrial component. These designs (also known as ECS panels) have been divided into several main categories detailed below. A complete list of GM ECS panels can be found on the GM Supply Power site.

通用汽车设计了几种标准工业控制柜。如果一个现成的工业产品不能发挥作用,就可以创建一个通用的面板设计,该设计可以被项目购买和使用,就像它是任何其他工业组件一样。这些设计(也称为ECS面板)分为以下几个主要类别。可在GM Supply Power网站上找到通用汽车ECS面板的完整列表。

1 Power Distribution Panels (PDP) 配电柜

A power distribution panel (PDP) provides electrical power to a tooling system or system of industrial equipment. The purpose of the PDP is to simplify electrical safety lockout for the cell or system and to reduce the number of plant drops for the system.

配电柜(PDP)向工具系统或工业设备系统提供电力。PDP的目的是简化单元或系统的电气安全锁定,并减少系统的设备下降的数量。

PDP’s are to provide 380 VAC - 575 VAC (depending on the region) power to all of the equipment in the system. PDPs also provide 120 VAC power for control. One transformer (lighting disconnect) in the PDP panel provides “hot” 120 VAC power for the memory type devices (i.e., PLC, HMI) and panel AC lights. This power remains on when the PDP’s main disconnect is off. The “lighting disconnect” has a separate disconnect to turn off the “hot” 120 VAC power. The second transformer provides 120 VAC control power for 24vdc power supplies used to power inputs, motion outputs, lights, relays, and the remainder of the control system. The PDP receives power directly from the plant control buss. The maximum disconnect size for a PDP shall not exceed 400 amps

PDP将为系统中的所有设备提供380V交流电-575V交流电(取决于区域)。PDP还提供120V交流电用于控制。PDP控制柜中的一个变压器(照明断开)为存储型设备(即PLC、HMI)和控制柜交流交流灯提供“热”120 V交流电源。当PDP的主电源断开时,此电源保持打开状态。“照明断开”有一个单独的断开装置,用于关闭“热”120 V交流电源。第二个变压器为24V直流电源提供120V交流控制电源,用于为输入、运动输出、灯、继电器和控制系统的其余部分供电。PDP直接从工厂控制总线接收电源。PDP的最大断开尺寸不得超过400安培。

Exception: Where power in excess of 400 amps is required, a manufacturer specific power distribution panel (i.e. MCC) can be used. These applications shall require written pre approval of the responsible GM Controls Project Engineer.
例外情况:当需要超过400安培的功率时,可使用制造商指定的配电盘(即MCC)。这些申请需要得到负责的GM控制项目工程师的书面预先批准。

2 Main Control Panel (MCP) 主控柜

The Main Control Panel is the focal point of the control system for a cell or tool. The Main Control Panel contains:
主控制面板是单元或工具控制系统的焦点。主控制面板包含:

  1. The programmable logic controller (PLC)
    可编程序控制器(PLC)
  2. All network interfaces needed to control the cell
    控制单元所需的所有网络接口

The MCP receives 120 VAC power from the power distribution panel and may contain the 24 volt DC power supplies for network and control power. Industrially hardened 24VDC power supplies used in combination with industrially hardened PLC’s are typically used in place of the MCP with integral power supplies. The characteristics of the MCP are similar for all applications.

MCP从配电柜接收120V交流电源,并可包含用于网络和控制电源的24V直流电源。与工业PLC结合使用的工业稳压24V直流电源通常用于代替带有集成电源的MCP。。MCP的特性对于所有应用程序都是相似的。

3 Human Machine Interface (HMI) 人机界面

The HMI is the point of control for the equipment by the maintenance personnel. It contains a programmable display and the hardwired buttons necessary for the safety system. An HMI may be mounted on the front door of a Main Control Panel or mounted remotely on a stand. A remote HMI has a smaller footprint and may be placed closer to the equipment than the Main Control Panel to facilitate maintenance activities An HMI is required if the tool is 6 sequence steps or more and/or requires a diagnostic display. Implementation and placement of HMI’s must be approved by the GM Controls Project Engineer.

HMI是维修人员对设备的控制点。它包含一个可编程的显示器和安全系统所需的硬连线按钮。HMI可以安装在主控面板的前门上,也可以远程安装在支架上。远程HMI占用的空间更小,并且可能比主控柜更靠近设备,以方便维护活动。如果工具是6个顺序步骤或更多,并且/或需要诊断显示,则需要HMI。HMI的实施和布置必须得到总经理控制项目工程师的批准。

A PHMI (Portable HMI) is an HMI that is small enough to carry and allows a person to get closer to the equipment for manual operation (improved “line-of-sight”). The PHMI has a built-in enabling pendant to enable/disable tool motion. The PHMI also requires a connectivity box for the safe I/O and Ethernet interface. A small multi-conductor cable is provided between the PHMI and connectivity box to carry the hardwired enable and stop signals to safe inputs. The PHMI manually controls only tooling motion and is not a robot teach pendant.

PHMI(便携式HMI)是一种小型HMI,可以携带并允许人们靠近设备进行手动操作(改进了“视线”)。 PHMI具有内置启用挂件,可启用/禁用工具运动。 PHMI还需要一个用于安全I / O和以太网接口的连接盒。 PHMI和连接盒之间提供一根小型多芯电缆,用于将硬连线启动和停止信号传送到安全输入端。 PHMI仅手动控制工具运动,而不是机器人示教器。

The PHMI shall be used if 2 or more HMI’s are required for “line-of-sight” manual control of tooling equipment.

PHMI应使用如果需要2个或更多HMI的“视线”手动控制工具设备。

A single PHMI may be used to control multiple offline tools (quantity of tools limited by span of control rules and PHMI cable reach) in close proximity to each other.

单个PHMI可用于控制多个离线工具(受控制规则跨度和PHMI电缆可达范围限制的工具数量)之间的近距离控制。

4 Entrance Gate Control Panel (Gate Box)

The entrance gate control panel is the control point of the MPS system. This control panel allows reduced mean-time-to-repair (MTTR) of the automated cells by providing a single point of control to disable motion power and re-start of the cell.

入口关口控制柜是MPS系统的控制点。该控制柜通过提供一个单点控制来禁用运动电源和重新启动单元,从而减少了自动单元的平均修复时间(MTTR)。

5 Fixture Junction Box 夹具接线盒

The fixture junction box is the single point of connection for the safety signals associated with a tooling fixture (e.g., valve manifold Output Power, light screens and/or floor mats for operator protection, and safety pins). These types of panels are typically replaced by industrially hardened I/O blocks and power supplies.

夹具接线盒是与工装夹具相关的安全信号的单点连接(例如,阀门歧管输出功率、用于操作人员保护的光屏和/或地垫以及安全销)。这些类型的面板通常被工业硬化的I/O块和电源所替代。

6 Operator Interface Panel 操作界面面板

Operator interface panels are provided at any point in which the production operator needs to interface with the automated equipment. These panels can be used for functions such as:

在生产操作员需要与自动化设备接口的任何位置都提供操作员接口面板。这些面板可用于以下功能:

  1. Safety Device Reset
    安全装置复位
  2. Scheduling, sequencing, and routing.
    调度,排序和路由
  3. Production Fault Annunciation.
    生产故障报错

Operator run stands are typically used at manual stations by the operator to signal the control system to start the Automatic cycle.

操作员运行台通常由操作员在手动操作站使用,向控制系统发出信号,以启动自动循环。

At a minimum, these operator run stand shall contain:
至少,这些操作人员运行台应包括:

  1. a single “Cycle Start” button (palm button)
    一个“循环启动”按钮(手掌按钮)
  2. an “Emergency Stop” button (mushroom)
    一个“紧急停止”按钮(蘑菇形)
  3. a “Return To Start” button
    “返回开始”按钮
  4. a part(s) present light
    部分信号灯
  5. a fault buzzer or light (to signal the operator that the part load has not completed)
    故障蜂鸣器或指示灯(向操作员发出部分负载未完成的信号)

An operator run stand shall be provided for each production operator. Items 3 thru 5 can be omitted for certain simple applications at the discretion of the responsible GM Controls Project Engineer.
应为每个生产操作员提供操作员操作台。对于某些简单的应用,由负责的GM控制项目工程师决定,项目3至5可以省略。

7 Motor Control Panel 电机控制柜

A motor control panel is used to provide disconnecting means and control of 380 - 575 VAC motors for turntables, tip dressers, accumulator drive motors, pumps, fans, conveyors, etc. It contains necessary over current protection, motor starters, overload elements, input/output blocks, and terminations for the motor system. Motor control panels are typically replaced by industrially hardened motor starters, drives, or combination starters.

电机控制柜用于为转盘、电极帽修磨器、蓄能器驱动电机、泵、风扇、输送机等提供380-575 V交流电机的断开装置和控制。它包含必要的过电流保护、电机启动器、过载元件、输入/输出块和终端。电机控制柜通常由工业硬化的电机启动器、驱动器或组合启动器代替。

8 Safety Device Junction Boxes 安全设备接线盒

Safety device junction boxes are panels containing IO connected to safety devices (i.e., light screen, safety scanner, safety mat). These panels provide a means to connect and power safety devices used for perimeter, intercell, and pedestrian guarding. These types of panels are typically replaced by industrially hardened I/O blocks and power supplies.

安全装置接线盒是包含IO的面板,连接到安全装置(即,光幕、安全扫描仪、安全垫)。这些面板提供了一种连接和供电安全装置的方式,用于周边、单元内部和行人保护。这些类型的面板通常由工业硬化的I/O块和电源代替。

9 控制柜接线示例

9.1 Figure 1 Main Control Panel (MCP)

Figure 1 Main Control Panel (MCP).jpg

9.2 Figure 2 GATE BOX

Figure 2 GATE BOX.jpg

9.3 Figure 3 J-BOX

Figure 3 J-BOX.jpg

9.4 Figure 4 VFD

Figure 4 VFD.jpg

9.5 Figure 5 ARMOSTART

Figure 5 ARMOSTART.jpg

9.6 Figure 6 PB STAND

Figure 6 PB STAND.jpg

9.7 Figure 7 HMI

Figure 7 HMI.jpg