题目内容

工业机器人运行期间,示教器出现“( )” 的报警信息,此报警信息表示工业机器人本体中电机温度过高。

A. 20251
B. 20252
C. 21252
D. 20052

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电机故障产生的原因()。

A. 脉冲编码器发生故障,电动机的位置没有正确传递到控制装置,导致电机抖动
B. 电动机主体部分发生故障,不能发挥其原有的性能
C. 因某种原因而输入了与规定值不同的动作控制用变量
D. 机构部件和控制装置的连接电缆快要断线

造成电机过流故障的原因正确的是( )。

A. 电机UVW电缆短路
B. 电机电缆接触不良
C. 电机转的太快
D. 电机负载太大

出现电机过热的原因可能有以下几个方面:

A. 电源电压过高或者下降过多;
B. 轴承缺油或者损坏。
C. 电机过载运行;
D. 空气过滤器选件阻塞;

Listen to a dialogue and decode the message by finding the correct choices inbrackets according to what you have heard.[音频]Mr. Anderson is shopping at a department store. He wants to buy some 1 silk, pottery, jewelry . He asks the shop assistant for something a little 2 darker, brighter, lighter . The assistant shows him the design with blue and yellow 3 birds, cats, dogs . He likes the 4 color, size, design and wants to buy one and half meters for his 5 wife, sister, daughter to make a short-sleeved dress. It will cost him one hundred and forty yuan.

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