ABB AC 900F学习笔记66：Freelance_Mounting_and_Installation_AC_900F_Controller-26
6 Wiring
布线
This section provides information on wiring the AC 900F controller exclusive of the CI/CM communication interface module. It contains safety instructions, general guidelines and information on cable routing
本节提供有关 AC 900F 控制器的布线信息，但不包括CI/CM 通信接口模块。它包含安全说明，一般电缆路由指南和信息
6.1 Safety instructions
安全性说明
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Make sure to strictly observe the following safety instructions when wiring the controller. This requirement is essential to exclude personal injury and equipment damage. 在给控制器布线时，请务必严格遵守以下安全说明。这一要求对于排除人身伤害和设备损坏至关重要。 |
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Please refer to the safety instructions for the AC 700F/AC 900F for general information on safety and precautionary measures 请参阅 AC 700F/AC 900F 的安全说明，了解有关安全和预防措施的一般信息 |
The L+ and M terminals are assigned twice. Incorrect wiring may cause short circuits and damage the power supply unit or the fuse protection of the power supply unit. If no suitable protection is provided (suitable module), the CPU module may be damaged as well. For this reason, the CPU module must be wired in compliance with the following instructions and an adequately dimensioned fuse must be used
L+ 和 M 终端被分配两次。不正确的布线可能导致短路和损坏电源单元或电源的保险丝保护单元。如果没有提供适当的保护（适当的模块），CPU 模块也可能损坏。因此，CPU 模块必须按照下面的要求接线，必须使用足够尺寸的保险丝。
6.2 General instructions
通用介绍
Strictly observe the following basic principles and instructions when installing and wiring the controller。
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The specified earthing and shielding measures must be implemented in order to 必须执行指定的接地和屏蔽措施，以便确保可靠的控制器操作 |
- Keep all connecting lines as short as possible. This is particularly important for the earthing conductors
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保持所有连接线尽可能短。这对接地导体尤其重要
- Make sure to select sufficiently dimensioned wire cross-sections. This is particularly important for earthing conductors
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确保选择足够尺寸的电线横截面。这对接地导体尤其重要
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要实现低阻抗性，即在大表面上的最佳接触，按以下方式进行：
–establish vibration-resistant connections
建立抗震连接
–use bare contact areas (remove paint, clean surface),
使用裸露接触区域（去除油漆，清洁表面）
–avoid the use of aluminum parts (oxidize easily)
避免使用铝部件（易氧化）
–select solid plug and screw connections
选择实心插头和螺丝连接
–directly earth the cable shields with clips to a well-grounded metallic surface
直接接地电缆屏蔽与剪辑到接地良好的金属表面
–do not use drain wires (pig-tails),
不要使用接地线（铜辫）？
–do not use toothed washers to lock the screw unions
不要使用带齿垫圈来锁紧螺丝接头
