ABB 81EA02E GJR2366000R1000数字量控制板卡
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中文资料：
ABB 81EA02E GJR2366000R1000除了满足代码要求外，电线颜色编码使测试和故障排除更安全、更快、更容易。▪ 绿色或带条纹的绿色-接地▪ 黑色-主交流▪ 红色-ABB 81EA02E GJR2366000R1000二次交流▪ 蓝色-直流▪ 白色-普通或中性▪ 黄色-辅助电源不受主断路器控制。提醒维护人员，即使设备与主电源断开，也可能存在电源（来自外部电源）。
ABB 81EA02E GJR2366000R1000布线为了减少PLC布线之间的噪声耦合，应将电气噪声布线（如交流电源布线和离散输出模块布线）与低电平信号布线（如直流和模拟输入模块布线或通信电缆）分开。ABB 81EA02E GJR2366000R1000在可行的情况下，将以下类型的接线单独分组：ABB 81EA02E GJR2366000R1000▪ 交流电源接线。这包括PLC电源的交流输入，以及控制柜中的其他交流设备。
▪ ABB 81EA02E GJR2366000R1000模拟输入或输出模块接线。这应该被屏蔽，以进一步减少噪声耦合。▪ 离散输出模块接线。这些通常会切换电感负载，ABB 81EA02E GJR2366000R1000这些负载在关闭时会产生噪声尖峰。▪ 直流输入模块接线。尽管这些低电平输入在内部受到抑制，但应通过观察这些布线实践来进一步防止噪声耦合。▪ 通信电缆。诸如Genius总线或串行电缆之类的布线应远离产生噪音的布线。ABB 81EA02E GJR2366000R1000
英文资料：
Besides ABB 81EA02E GJR2366000R1000satisfying code requirements, wire color coding makes testing and troubleshooting safer, faster, and easier. ▪ Green or green with stripe- Ground ▪ Black - Primary ABB 81EA02E GJR2366000R1000AC ▪ Red - Secondary AC ▪ Blue - DC ▪ White - Common or neutral ▪ Yellow - Secondary power source not controlled by the main disconnect. Alerts maintenance personnel that there may be power present (from an external source) even if the equipment is disconnected from its main power source.ABB 81EA02E GJR2366000R1000
Wire Routing To reduce noise-coupling among ABB 81EA02E GJR2366000R1000 wires, electrically-noisy wiring such as AC power wiring and discrete output module wiring should be separated from low-level signal wiring such as DC and analog input module wiring or communications cables. Where practical, group separately the following types of wiring: ▪ AC power wiring. This includes the AC input to the PLC power supply, as well as other AC devices in the control cabinet.ABB 81EA02E GJR2366000R1000
▪ ABB 81EA02E GJR2366000R1000Analog Input or Output Module wiring. This should be shielded to further reduce noise coupling. ▪ Discrete Output Module wiring. These often switch inductive loads that produce noise spikes when switched off. ▪ DC Input Module wiring. Although suppressed internally, these low-level inputs should be further protected against noise coupling by observing these wiring practices. ▪ Communications Cables. Wiring such as Genius bus or serial cables should be kept away from noise-producing wiring.ABB 81EA02E GJR2366000R1000
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