CDB01.1C-ET-ENS-ENS-NNN-MEM-NN-S-NN-FW工控

产品详细资料
一旦频率降至阈值以下，启动斜坡动作并验证元件是否工作。 检查跳闸和拾取指示灯是否亮起，并显示以下跳闸信息之一：锁定：频率衰减率1或操作：频率衰减速率1如果目标选择为锁定，跳闸指示灯和信息保持亮起。 将当前电平设置为低于S4 ELEMENTS的值 频率 频率衰减 小工作电流值。 重复斜坡动作，并确认元件不工作。如果该元件的电流感应已被禁用，则操作将继续下降到约为标称值2%的电流水平。 对于定时测试，如果计时器在斜坡动作的同时触发，并且测量触发点和继电器操作之间的时间间隔，则可以获得近似的操作时间。 从测量的时间中减去频率达到阈值所需的时间。预期时间必须使用变化率和S4元素的影响进行计算 频率 频率衰减 频率衰减延迟时间延迟伏/赫兹以下程序适用于两个伏/赫兹元件；在适当的时候做出必要的改变。每赫兹电压的工作电平是根据继电器输入电压除以该电压的频率来设置的。 禁用除伏特/赫兹1以外的所有元件。 监控适当的联系人。 使用第7–44页图7–12中的测试设置：使用变频电压源进行频率元件测试。
Initiate ramping action and verify that the element operates once the frequency drops below the threshold.  Check that the Trip and Pickup LEDs are on and one of the following trip messages is displayed: LATCHED: Freq Decay Rate 1 or OPERATED: Freq Decay Rate 1 If the target was selected as Latched, the Trip LED and the message remain on.  Set the current level to a value below the S4 ELEMENTS  FREQUENCY  FREQUENCY DECAY  MINIMUM OPERATING CURRENT value.  Repeat ramping action and verify that element does not operate. If current sensing has been disabled for this element, operation will continue down to a current level of approximately 2% of nominal.  For timing tests, an approximate operate time is obtained if a timer is triggered at the same time as the ramping action and the time interval between the trigger point and the relay operation measured.  From that measured time, subtract the time required for the frequency to reach the threshold value. The expected time must be computed using the rate of change and the effect of the S4 ELEMENTS  FREQUENCY  FREQUENCY DECAY  FREQUENCY DECAY DELAY time delay Volts per Hertz The following procedure applies to both volts-per-hertz elements; make the necessary changes where appropriate. The volts-per-hertz operating levels are set in terms of the relay-input voltage divided by the frequency of that voltage.  Disable all elements except volts-per-hertz 1.  Monitor the appropriate contact.  Use the test setup in FIGURE 7–12: Frequency element testing on page 7–44 with variable-frequency voltage source.
主营产品简介
专注于DCS、PLC、机器人控制系统、大型伺服四大系统领域。

主营产品各种模块/卡件，控制器，触摸屏，伺服驱动器。

优势：供应进口原装正品，专业停产配件，

发货快，货期精准，

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只卖库存产品;出完需订货!价格以客服说明为准!!订货货期以客服说明为准，有任何疑问请联繁客服! Limited stock, Contact US!

●使用前:

在操作和维护，安装设备之前，请阅读并严格遵守安全相关的信息。

Read and strictly follow safety-related information before operatingmaintainingand installing equipment.

●使用者要求:

必须从事安装，组装或维护设备等相关工控电气机械以及其他相关技术的人员。

Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:

应用于品牌本系列工业以及生产生活自动化设备产品。

Used in the brand of this series of industriaand production automation eauipment products

适用于场景:系统集成，非标定制，产线升级改造，原设备电气替换等等。

Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.

●操作人员:

应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强，熟悉安全信息和安全实施:

熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。

Equipment should be installed,operated and maintained by trained operators from the brand

●危险情况

警告

.请注意使用人员的人身安全。

●除了产品特性以及功能，还需了解产品的使用寿命环境。

●充分学习产品使用手册，否则非专业人员可能会造成人身危险。

Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.

●服务行业

适用水泥，木业，石业，橡胶，石油，化工，发电，环保，水处理，制冷，交通，钢铁，食品，饮料，船舶，制冷等行业

Applicable to cementwood,stone,rubber,petroleumchemical, power generation