MMII-PD-MOD501-120 微处理器的电机保护系统 GE 

【产品详情】

Multilin系列电机控制中心单元最初由GE自动化部门开发。该系列中的模块均设计用于涵盖与保护和控制电机有关的众多功能。

MMII-PD-MOD501-120涵盖的功能包括保护电机免受任何可能的过载或相位不平衡的影响。如果接触器或转子发生故障或停止，则模块能够自行覆盖和管理问题。

该装置还配备了一系列有用的内部硬件，例如热绕组热敏电阻电路，该电路在温度变化时与电荷发生反应。还有一个欠压自动重启装置，以防进气降至低于所需的最低电平（120 伏交流电）。

在外部，本机配备了大量的输入和输出端口。其中集成了 20 个 I/O 端口。其中 4 个是输出，2 个承包商输出，然后是 2 个可编程输出。其他 16 个端口是输入端口。6 个是固定输入，然后 10 个是可编程的。

监视器显示屏能够在监视器上显示相电流、接地电流、热容量和模拟输入。它还记录行程和行程前值，以便进行正确评估。

MMII-PD-MOD501-120的可配置性如何？继电器如何确定何时发生跳闸和报警？

MMII-PD-MOD501-120 在一系列高度通用的设置上运行，这些设置称为“设定点”，用于控制系统活动，例如何时发生跳闸和报警、设备收集哪些参数以及应采用哪些过载曲线进行系统保护。如前所述，用户可以编辑设定值，通过为系统设置触发这些安全响应的阈值来确定何时发生跳闸和报警。当继电器检测到系统参数在用户设置的时间内超过用户设置的额定值时，继电器可以激活适当的响应，以保护系统免受进一步的伤害。

MMII-PD-MOD501-120 微处理器的电机保护系统 GE 

【英文介绍】

The Multilin family of motor control center units was originally developed by GE Automation. The modules in this series are designed to cover numerous functions related to the protection and control of motors.

The functions covered by the MMII-PD-MOD501-120 include protection of the motor from any possible overload or phase imbalance. If the contactor or rotor fails or stops, the module is able to cover and manage the problem itself.

The device is also equipped with a range of useful internal hardware, such as a heat-winding thermistor circuit that reacts with an electric charge when the temperature changes. There is also an undervoltage automatic restart in case the intake drops below the required minimum level (120 volts AC).

Externally, the unit is equipped with a large number of input and output ports. It integrates 20 I/O ports. Four of them are outputs, two are contractor outputs, and then two are programmable outputs. The other 16 ports are input ports. Six are fixed inputs, and then 10 are programmable.

The monitor display displays phase current, ground current, heat capacity, and analog inputs on the monitor. It also records the trip and pre-trip values for proper evaluation.

How configurable is the MMII-PD-MOD501-120? How does the relay determine when a trip has occurred and alarm?

The MMII-PD-MOD501-120 operates on a series of highly generic Settings called "set points" that control system activity, such as when tripping and alarms occur, which parameters the device collects, and which overload curves should be adopted for system protection. As mentioned earlier, users can edit Settings to determine when a trip and alarm occurs by setting thresholds for the system to trigger these security responses. When the relay detects that a system parameter exceeds a user-set rating for a user-set period of time, the relay can activate an appropriate response to protect the system from further damage.

MMII-PD-MOD501-120 微处理器的电机保护系统 GE 

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