自动化控制板 USART86-8CH 57088648

 自动化控制板 USART86-8CH 57088648
电源断路器必须安装在控制器附近
安装应允许立即断开与
设备，如有需要。然而，电源断路器的主要功能
是提供一种在维护期间完全隔离电源的方法。
电源断路器必须安装在易于接近的位置
并且清晰可见，即在任何外壳或机柜外部。
保护接地（PE）
始终在连接到的设备上安装保护接地连接
115/230 V交流电源。
出于电气安全原因，所有导电部件，如DIN导轨或
轨道固定的导电部件需要连接到PE。
需要这种PE连接的安全方面是由于柜内接线
仅提供基本绝缘或意外接触/连接（如松动电线）
导电金属部件的危险电压。
连接应满足IEC61131-2中PE连接的要求，
即：具有30A静态电流流过的导体，
测量对应于＜0.1欧姆的电压降。
ABB强烈建议设备PE导线应为35 mm2
（2 AWG）铜导线的横截面。
外壳第2节安装
64 3BSE036351-510 A
熔断外部电源电缆
标准AC 800M外部电源的推荐保险丝额定值
控制器配置，安装在地板或壁挂式机柜内，如中所示
第64页表3。
如果配置与所述配置不同，计算说明
电流消耗可在相关I/O手册中找到。对于
AC 800M控制器，见附录B，功耗。
不间断电源
SD83X系列电源装置可轻松处理短电源
工业系统中通常发生的中断（<20毫秒）
环境尽管如此，有时需要保护某些应用程序
通过安装不间断电源防止短暂的电压故障
（UPS）设备。
如果发生电源故障，AC 800M控制器将安全关闭。
在停机期间，将备份应用程序内存和系统时钟
通过内部电池。在长时间不运行的系统中，它是
建议安装外部电池备用装置。当权力
电源重新连接后，AC 800M控制器将重新启动并运行应用程序
正常。
如果意外停机的影响不可接受，强烈建议
AC 800M控制器应通过连接到不间断电源进行完全保护
电源（UPS）电源。
围墙
AC 800M和S800输入/输出单元的防护等级为IP20，每个单元为
单独CE标记。如果需要更高的IP等级，则需要额外的外壳
需要。
表3.外部电源-保险丝额定值
保险丝额定值保险丝类型
10 A延时熔断器
第2节安装：将AC 800M装置安装到DIN导轨上
3BSE036351-510 A 65
通常，使用额外的机柜不会影响EMC
控制器的特性。
外壳安装
安装控制器外壳时，必须提供一定的小值
外壳、墙壁和天花板之间的距离，以提供
通风良好。
如果外壳配有可拆卸壁覆层，则必须确保
未从与其他外壳相邻的任何外壳中移除，包括：
不属于AC 800M控制器及其连接的S800 I/O的设备。
ABB机柜
作为合适的外壳，ABB建议使用以下两个机柜
特别适用于安装AC 800M控制器和S800 I/O。都是
密封至防护等级IP54，可支持控制器和S800 I/O单元
不需要额外的冷却设备：
•550令吉——楼层

 自动化控制板 USART86-8CH 57088648


 自动化控制板 USART86-8CH 57088648
A mains breaker must be installed in the immediate vicinity of a controller
installation to allow for immediate total power supply disconnection to the
equipment, should the need arise. However, the prime function of the mains breaker
is to provide a means of isolating the power supply completely during maintenance.
The mains breaker must be installed in a location where it is both easily accessible
and clearly visible, that is, outside any enclosure or cabinet.
Protective Earth (PE)
Always install a protective earth connection on equipment connected to a
115/230 V AC supply.
For electrical safety reasons all conductive parts, such as the DIN-rail or the
conductive parts to which the rail is fastened, are required to be connected to PE.
The safety aspect that requires such a PE-connection is due to e.g. in-cabinet wiring
providing basic insulation only or accidental touch/connection (e.g. loose wires) of
hazardous voltages to conductive metal parts.
The connection shall fulfill the requirements in IEC61131-2 for PE connections,
that is: A conductor which, having a static current of 30 A flowing through,
measures a voltage drop which corresponds to <0.1 ohm.
ABB strongly recommends that the equipment PE-conductor should be of 35 mm2
(2 AWG) cross section if copper lead. 
Enclosures Section 2 Installation
64 3BSE036351-510 A
Fusing the External Mains Supply Cable
The recommended fuse rating for the external mains supply of a standard AC 800M
Controller configuration, housed within a floor or wall-mounted cabinet, is given in
Table 3 on page 64.
Should the configuration be other than that stated, instructions for calculating
current consumptions can be found in the relevant I/O manual. For the
AC 800M Controller, see Appendix B, Power Consumption.
Uninterruptable Power Supply
The SD83X series of power supply units comfortably handle the short power
interruptions (<20 milli seconds) that may occur normally within an industrial
environment. Despite this, it is sometimes necessary to protect certain applications
against brief voltage failures by the installation of an Uninterruptable Power Supply
(UPS) device.
The AC 800M controller will shut down safely in the event of a power failure.
During down-time, the application memory and the system clock will be backed up
by the internal battery. In systems subject to long non-operational periods, it is
recommended that an external battery back-up unit be installed. When the power
supply is reconnected, the AC 800M Controller will re-start and run the application
as normal.
If the effects of unexpected shutdowns are not acceptable, it is highly recommended
that the AC 800M Controller be fully protected by connection to an Uninterruptable
Power Supply (UPS) source.
Enclosures
The AC 800M and S800 I/O units hold protection class IP20, with each unit being
individually CE-marked. If a higher IP class is required, an additional enclosure is
needed.
Table 3. External Mains Supply – Fuse Rating
Fuse Rating Fuse Type
10 A Delayed action fuse
Section 2 Installation Mounting AC 800M Units onto DIN-Rail
3BSE036351-510 A 65
Normally the use of an additional enclosure will not influence the EMC
characteristics of the controller.
Enclosure Mounting
When mounting the controller enclosure, it is important to provide certain minimum
distances between the enclosure, the walls and the ceiling, in order to provide
satisfactory ventilation.
If the enclosure is provided with removable wall cladding, it is important to ensure
that this is not removed from any enclosure adjacent to other enclosures containing
equipment not belonging to the AC 800M Controller and its connected S800 I/O.
ABB Cabinets
As a suitable enclosure, ABB recommends the following two cabinets, both
specially adapted for mounting the AC 800M Controller and S800 I/O. Both are
sealed to protection class IP54 and can support the Controller and S800 I/O units
with no requirement for additional cooling equipment:
• RM550 – Floor

 自动化控制板 USART86-8CH 57088648