数控技术应用专业英语LS5-1
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数控技术应用专业英语
Learning Situation 5 Integrated Applications
Task 1 Reading Product Specification
数控技术应用专业英语 Task1 Reading Product Specification
Part A Technical Reading Part B Practice activity Part C Broaden your horizon
Task 1 Reading Product Specification 1.CJX2 Series AC Contactor
It is used for on and off circuit at long distance and to frequently start and control AC motor. It also can be combined with proper thermal relay or electronic protection device to form electromagnetic starter to protect the circuit or AC motor that overload may happen. 它可供远距离接通和分断电路、频繁启动和控制交流电动 机之用，并可与适当的热继电器或电子保护装置组合成电磁启 动器，以保护可能发生过载的电路和交流电动机。
Task 1 Reading Product Specification 2.Linear Encoder for CNC Machine
（1）Advantages
of linear encoder （1）直线光栅尺的优点 Linear encoder can eliminate a number of potential error sources: 直线光栅尺能消除以下潜在的误差源: Positioning error due to thermal behavior of the ball screw; 由于滚珠丝杠温度特性导致的位置误差; Ball screw backlash; 滚珠反向间隙; Kinematics error through ball -screw pitch error. 由滚珠丝杠螺距误差导致的运动误差
（1）Applicable range （1）适用范围 CJX2 series AC contactor is applied to the power system with AC 50 Hz or 60 Hz， rated insulation voltage up to 6901000 V and rated working current up to 95 A under AC -3 usage sort with rated working voltage 380 V. CJX2系列交流接触器适用于交流50 Hz或60 Hz，额定绝缘电 压690～1000 V，在AC -3适用类别下额定工作电压为380 V，额 定工作电流达95 A的电力系统。
Task 1 Reading Product Specification
1
wenku.baidu.com
Part A Technical Reading
1. CJX2 Series AC Contactor
2. Linear Encoder for CNC Machine
Task 1 Reading Product Specification 1.CJX2 Series AC Contactor
Task 1 Reading Product Specification 1.CJX2 Series AC Contactor
（2）Structural feature （2）结构特点 CJX2 series AC contactor has features of small， light and with long life and small power consumption. It can be derived upon request and can be equipped with accessories such as auxiliary contact group， air delay head and mechanical interlock mechanism etc. to form delay contactor， mechanical interlock mechanism and star triangle starter. It also can be directly connected with thermal relay to form electromagnetic starter. CJX2系列交流接触器具有体积小、质量轻、寿命长和功耗小 的特点。可按要求组合派生，可配置辅助触头组、空气延时头、 机械联锁机构等附件，组成延时接触器、机械联锁接触器和星三 角启动器，并且可以和热继电器直接插接组成电磁启动器。
Linear encoder is ideal for machines and other equipments whose feed axes are in a closed loop. The good dynamic behavior of the linear encoder， their highly reliable traversing speed makes them meet the requirement of highly -dynamic conventional axes as well as direct drive. 直线光栅尺是采用闭环控制的机床和设备上进给轴的最 佳选择。直线光栅尺好的动态性能和高的运动速度可靠性使 其满足常规轴和直接驱动设备的高动态性能要求。
Task 1 Reading Product Specification 1.CJX2 Series AC Contactor
（3）Main technical parameter （3）主要技术参数
Task 1 Reading Product Specification 2.Linear Encoder for CNC Machine
Learning Situation 5 Integrated Applications
Task 1 Reading Product Specification
数控技术应用专业英语 Task1 Reading Product Specification
Part A Technical Reading Part B Practice activity Part C Broaden your horizon
Task 1 Reading Product Specification 1.CJX2 Series AC Contactor
It is used for on and off circuit at long distance and to frequently start and control AC motor. It also can be combined with proper thermal relay or electronic protection device to form electromagnetic starter to protect the circuit or AC motor that overload may happen. 它可供远距离接通和分断电路、频繁启动和控制交流电动 机之用，并可与适当的热继电器或电子保护装置组合成电磁启 动器，以保护可能发生过载的电路和交流电动机。
Task 1 Reading Product Specification 2.Linear Encoder for CNC Machine
（1）Advantages
of linear encoder （1）直线光栅尺的优点 Linear encoder can eliminate a number of potential error sources: 直线光栅尺能消除以下潜在的误差源: Positioning error due to thermal behavior of the ball screw; 由于滚珠丝杠温度特性导致的位置误差; Ball screw backlash; 滚珠反向间隙; Kinematics error through ball -screw pitch error. 由滚珠丝杠螺距误差导致的运动误差
（1）Applicable range （1）适用范围 CJX2 series AC contactor is applied to the power system with AC 50 Hz or 60 Hz， rated insulation voltage up to 6901000 V and rated working current up to 95 A under AC -3 usage sort with rated working voltage 380 V. CJX2系列交流接触器适用于交流50 Hz或60 Hz，额定绝缘电 压690～1000 V，在AC -3适用类别下额定工作电压为380 V，额 定工作电流达95 A的电力系统。
Task 1 Reading Product Specification
1
wenku.baidu.com
Part A Technical Reading
1. CJX2 Series AC Contactor
2. Linear Encoder for CNC Machine
Task 1 Reading Product Specification 1.CJX2 Series AC Contactor
Task 1 Reading Product Specification 1.CJX2 Series AC Contactor
（2）Structural feature （2）结构特点 CJX2 series AC contactor has features of small， light and with long life and small power consumption. It can be derived upon request and can be equipped with accessories such as auxiliary contact group， air delay head and mechanical interlock mechanism etc. to form delay contactor， mechanical interlock mechanism and star triangle starter. It also can be directly connected with thermal relay to form electromagnetic starter. CJX2系列交流接触器具有体积小、质量轻、寿命长和功耗小 的特点。可按要求组合派生，可配置辅助触头组、空气延时头、 机械联锁机构等附件，组成延时接触器、机械联锁接触器和星三 角启动器，并且可以和热继电器直接插接组成电磁启动器。
Linear encoder is ideal for machines and other equipments whose feed axes are in a closed loop. The good dynamic behavior of the linear encoder， their highly reliable traversing speed makes them meet the requirement of highly -dynamic conventional axes as well as direct drive. 直线光栅尺是采用闭环控制的机床和设备上进给轴的最 佳选择。直线光栅尺好的动态性能和高的运动速度可靠性使 其满足常规轴和直接驱动设备的高动态性能要求。
Task 1 Reading Product Specification 1.CJX2 Series AC Contactor
（3）Main technical parameter （3）主要技术参数
Task 1 Reading Product Specification 2.Linear Encoder for CNC Machine