469-P5-LO-A20-E 数字输入

469-P5-LO-A20技术规格

时钟精度±5分钟/月

软件enervista 469

5 × 20mm慢速blo HRC小熔断器，断断能力高

数字输入9个光隔离输入

模拟电流转换范围0至21毫安

RTD感应电流5毫安

显示40个字符的字母数字液晶

联系电话：18059884797

立即咨询在线留言

产品详情

469-P5-LO-A20-E 数字输入

【功能描述】

469-P5-LO-A20技术规格

时钟精度±5分钟/月

软件enervista 469

5 × 20mm慢速blo HRC小熔断器，断断能力高

数字输入9个光隔离输入

模拟电流转换范围0至21毫安

RTD感应电流5毫安

显示40个字符的字母数字液晶

产品描述

469- p5 - lo - a20由GE Multilin生产，作为其469系列的一部分，是低控制功率型号之一，功能范围为24至60 VDC, 20至48 VAC, 48至62 Hz。该继电器旨在保护和管理从中型到大型的电动机。

469-P5-LO-A20设定值系统通过为用户提供直接影响继电器和电机系统功能的大量可定制设置，增加了可配置性。输入可以分配，时间间隔可以调整，数据可以审查或清除，以及其他功能。设定值首先可以通过继电器的自动配置功能轻松建立，然后随着用户了解系统的需求进行调整。

469继电器有5个预分配的数字输入和4个可分配的，总共有9个数字输入。预先分配的五个数字输入始终有效，而四个数字输入在用户进行适当分配之前保持惰性。一些可分配输入的例子包括远程报警功能、远程脱扣功能和速度开关脱扣功能。

继电器也有四个模拟输出通道，范围从4到20mA，由位于型号中的“A20”标定。模拟输出通道可以使用不同的变量，如功率因数，kW需求和最热轴承RTD。更多信息可以在通用电气的469用户手册中找到，1601-0122-AG手册;这个资源可以在AX Control的网站上找到。

469-P5-LO-A20常见问题

ge469 - p5 - lo - a20继电器的相位ct、接地ct和电机满载电流应设置为什么?

对于GE 469-P5-LO-A20继电器，相位CT必须选择为满载电流为初级CT的50%至100%，但满载电流为347.5A a 350:5，或400:5 CT可以选择，400:5是所选尺寸的标准。高阻接地系统对接地检测很敏感，可以采用50:0.025 CT。电机满载电流设置为348A由相电流互感器和地电流互感器的其他数据表规定。

GE电机管理继电器的过载拾取和过载曲线设置是什么?

过载拾取设置应为最高服务系数1.25 ×满载电流，因此电机服务系数为1.15，如果服务系数未知，则应自动设置为1.0。该电机具有电阻温度检测器(rtd)，继电器可用于保护过载拾取。为了使过载曲线不影响继电器上的保护，过载曲线应设置在标准过载曲线上，并且要有最多的过程启动时间，它将刚好低于冷热极限。过载曲线7最适合这个继电器。

469-P5-LO-A20-E 数字输入

469-P5-LO-A20 Technical specifications

Clock accuracy ±5 minutes/month

Software enervista 469

5 × 20mm slow blo HRC small fuse, high breaking capacity

Digital input 9 optical isolated inputs

Analog current conversion range 0 to 21 MA

RTD inductive current 5 MA

Displays a 40-character alphanumeric LCD

Product description

Produced by GE Multilin as part of their 469 series, the 469-P5-LO-A20 is one of the low control power models with a functional range of 24 to 60 VDC, 20 to 48 VAC, and 48 to 62 Hz. The relay is designed to protect and manage motors from medium to large.

The 469-P5-LO-A20 setpoint system increases configurability by providing users with a large number of customisable Settings that directly affect the function of the relay and motor system. Inputs can be assigned, time intervals can be adjusted, data can be reviewed or cleared, and other features. The set point can first be easily established through the relay's automatic configuration function, and then adjusted as the user learns about the needs of the system.

The 469 relay has five pre-assigned digital inputs and four assignable ones, for a total of nine digital inputs. A pre-assigned five-digit input is always valid, while a four-digit input remains inert until the user makes a proper allocation. Some examples of assignable inputs include the remote alarm function, the remote trip function, and the speed switch trip function.

The relays also have four analog output channels ranging from 4 to 20mA, calibrated by the "A20" located in the model number. The analog output channel can use different variables such as power factor, kW demand and hottest bearing RTD. More information can be found in GE's 469 User manual, 1601-0122-AG manual; This resource can be found on AX Control's website.

469-P5-LO-A20 Frequently Asked Questions

What should the phase ct, ground ct and full load current of the ge469-p5-lo-a20 relay be set?

For GE 469-P5-LO-A20 relays, phase CT must be selected for a full load current of 50% to 100% of the primary CT, but full load current of 347.5A 350/5, or 400:5 CT can be selected, and 400:5 is the standard for the selected size. The high resistance grounding system is sensitive to ground detection and can use 50:0.025 CT. The motor full load current is set to 348A as specified by other data sheets for the phase current transformer and ground current transformer.

What are the overload pickup and overload curve Settings for GE motor management relays?

The overload pick setting should be the maximum service factor of 1.25 x full load current, so the motor service factor is 1.15, and if the service factor is unknown, it should be automatically set to 1.0. The motor has a resistance temperature detector (rtd), and relays can be used to protect overload picking. In order that the overload curve does not affect the protection on the relay, the overload curve should be set on the standard overload curve, and there should be a maximum process start time, which will be just below the hot and cold limits. Overload curve 7 works best for this relay.