1757-SRM 是冗余模塊，主要用于提高工業(yè)自動(dòng)化系統(tǒng)的可靠性和穩(wěn)定性。冗余模塊的設(shè)計(jì)原理是在主模塊出現(xiàn)故障時(shí)，自動(dòng)切換到備用模塊，確保系統(tǒng)能夠持續(xù)、穩(wěn)定地運(yùn)行。
1757-SRM冗余模塊具備以下特點(diǎn)：
耗電小及關(guān)閉電源功能：新型電源IC的靜態(tài)電流較小，且該模塊具備關(guān)閉電源控制端功能，可以在不需要工作時(shí)關(guān)閉部分電路，從而大大節(jié)省電能。
電機(jī)軟啟動(dòng)功能：電機(jī)的啟動(dòng)電流由過去的不可控制變?yōu)榭煽刂?，可以根?jù)需要調(diào)節(jié)啟動(dòng)電流的大小，從而避免啟動(dòng)時(shí)的沖擊轉(zhuǎn)矩，實(shí)現(xiàn)平滑啟動(dòng)運(yùn)行。
高可靠性：由于采用了冗余設(shè)計(jì)，當(dāng)主模塊出現(xiàn)故障時(shí)，備用模塊能夠迅速接管工作，確保系統(tǒng)不中斷運(yùn)行，大大提高了系統(tǒng)的可靠性。
在實(shí)際應(yīng)用中，1757-SRM冗余模塊廣泛應(yīng)用于各種對系統(tǒng)穩(wěn)定性和可靠性要求較高的工業(yè)自動(dòng)化和控制系統(tǒng)中。它與其他ControlLogix系列模塊和設(shè)備配合使用，能夠構(gòu)建一個(gè)高效、穩(wěn)定、可靠的工業(yè)自動(dòng)化網(wǎng)絡(luò)。

1757-SRM

The 1757-SRM is a redundant module designed to improve the reliability and stability of industrial automation systems. The redundant module is designed to automatically switch to the standby module when the primary module fails, ensuring the continuous and stable operation of the system.
The 1757-SRM redundancy module has the following features:
Small power consumption and power off function: The static current of the new power supply IC is small, and the module has the function of shutting down the power control terminal, which can close part of the circuit when it does not need to work, thus greatly saving power.
Motor soft start function: the starting current of the motor is changed from uncontrollable in the past to controllable, and the size of the starting current can be adjusted according to the need, so as to avoid the impact torque when starting, and achieve smooth starting operation.
High reliability: Because of the redundancy design, when the primary module fails, the standby module can quickly take over the work, ensuring that the system runs without interruption, which greatly improves the reliability of the system.
In practical applications, the 1757-SRM redundancy module is widely used in various industrial automation and control systems that require high system stability and reliability. It works with other ControlLogix series modules and devices to build an efficient, stable, and reliable industrial automation network.

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