ABB 07KT94 GJR5252100R3261控制主板卡件
1.产 品 详 情 资 料：
要检查冗余是否正常工作，请执行手动切换
从主CPU到备份CPU。这应该谨慎地进行，
并考虑可能对流程的影响。手动切换由以下方式启动：
•重置主CPU
•关闭主CPU电源
检查两个CPU上的黄色DUAL LED随后是否亮起，以及
当前充当主CPU的前备份CPU上的PRIM LED亮起。
其他装置见第185页表23。本节介绍了
AC 800M控制器以及两个系统的故障排除程序
以及单个单元。
预防性维护频率计划
在尝试维护或故障排除之前，请阅读
第13页。否则可能导致人身伤害或设备损坏
完整系统目视检查所有系统
硬件、连接器和布线。检查
这个：
•物理损坏和退化
•安全附件
•连接器和接线状况
•LED功能
纠正任何缺陷。
2年PM8xx
内部电池
（如已安装）
更换电池
To check that the redundancy, is working correctly, perform a manual switch-over from the Primary CPU to the Backup CPU. This should be performed with caution, and consideration to possible impact on the process.A manual switch-over is initiated by: • Resetting the Primary CPU • Powering off the Primary CPU Check that the yellow DUAL LED subsequently lights up on both CPUs, and that the PRIM LED lights up on the former Backup CPU now acting as Primary CPU. For other units see Table 23 on page 185.This section describes preventive and corrective maintenance measures for the AC 800M Controller together with troubleshooting procedures for both the system and individual units. Preventive Maintenance Frequency Schedule Before attempting maintenance or troubleshooting, read the Safety Summary on page 13. Failure to do so could lead to personal injury or damage to equipment.At regular, userdefined intervals Complete system Carry out a visual inspection of all system hardware, connectors and wiring. Check for the: • Physical damage and deterioration • Secure attachment • Condition of connectors and wiring • LED function Correct any defects. 2 Years PM8xx Internal Battery (if fitted) Change battery
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