1756-M02AS 同步串行接口或 SSI 伺服模块 模拟伺服接口模块

【产品详情】

Allen-Bradley 1756-M02AS 是一款同步串行接口或 SSI 伺服模块。它是一个模拟伺服接口模块，有 2 个轴可用。控制器中最多可安装 32 个 1756-M02AS 模块轴。该模块已针对需要 +/-10V 速度或扭矩参考输入的驱动器或执行器的控制进行了优化。1756-M02AS 模块具有 SSI 位置反馈输出，是支持模拟运动接口的设备的开环或闭环运动控制的经济高效选项。该模块与各种正交输出旋转和线性传感器兼容。可用的 SSI 设备包括旋转绝对值和增量式编码器、线性绝对值和增量式编码器、线性激光距离、线性绝对玻璃栅尺和线性磁致伸缩。您可以将笼式夹具 1756-TBCH 或弹簧夹具 1756-TBS6H RTB 用于此模块。它有两种类型的伺服回路：扭矩和速度/液压。扭矩具有带速度前馈位置环路的 PID，其速度环路是带 Accel 前馈（嵌套）的 PI，具有定向缩放和摩擦补偿功能。速度具有具有速度前馈的 PID 位置环路和具有定向缩放和摩擦补偿的加速度前馈。速度环不适用，因为它由驱动器或阀门处理。1756-M02AS 模块具有 32 位浮点的增益分辨率和 4,294,967,296 个传感器计数的绝对位置范围。它具有 500Hz、666.7Hz、1kHz、2kHz 和 4kHz 的可选速率，更新周期为 250Âμsec、500Âμsec、1msec、1.5msec 和 2msec。其分辨率范围为 8 至 31 位，并具有隔离的 5V 差分电气接口（RS-422 信号）。它还具有 215 欧姆差分输入阻抗和 100 欧姆最小输出负载。它的时钟频率为205kHz或625kHz，换能器可以是二进制或格雷码。它是一种光隔离的电流吸收模块。1756-M02AS 模块的标称输入电压为 24V DC，关断状态最大电压为 8.5V DC，导通状态电压范围为 17V DC 至 26.4V DC。它在 5.1V DC 和 24V DC 时的电流消耗分别为 700 mA 和 2.5 mA。它还具有 5.5 W 的功耗、18.77 BTU/hr 的热耗散和 30V 的隔离电压，从用户到系统是连续的。

Allen-Bradley 1756-M02AS是一款运动控制接口模块。该模块专门用于模拟运动模块，用于开环和闭环运动应用。该模块内置支持 2 个运动轴 - 但是，如果需要，可以安装额外的模块，以便每个 ControlLogix 处理器提供多达 32 个运动轴。

1756-M02AS 支持扭矩位置和速度环路。对于位置环路，使用比例 + 积分 + 微分 （PID） 和速度前馈，而对于速度环路。使用比例 + 积分 （PI） 和加速度前馈，包括定向缩放和摩擦补偿功能。该模块还可以控制速度或液压驱动的位置回路。这样，就使用了位置和速度的组合函数，其中使用了具有速度前馈的 PID 和具有定向缩放和摩擦补偿的加速度前馈。

1756-M02AS 同步串行接口或 SSI 伺服模块 模拟伺服接口模块

【英文介绍】

Allen-Bradley 1756-M02AS is a synchronous serial interface or SSI servo module. It is an analog servo interface module with 2 axes available. Up to 32 1756-M02AS module shafts can be installed in the controller. The module has been optimized for the control of drivers or actuators that require a +/-10V speed or torque reference input. The 1756-M02AS module features SSI position feedback outputs and is a cost-effective option for open or closed loop motion control for devices that support analog motion interfaces. The module is compatible with a variety of orthogonal output rotation and linear sensors. SSI devices available include rotary absolute and incremental encoders, linear absolute and incremental encoders, linear laser distance, linear absolute glass grid ruler, and linear magnetostriction. You can use the cage jig 1756-TBCH or the spring jig 1756-TBS6H RTB for this module. It has two types of servo circuits: torque and speed/hydraulic. The torque has a PID with a velocity feedforward position loop, whose velocity loop is a PI with Accel feedforward (nested) with directional scaling and friction compensation. The velocity has a PID position loop with velocity feedforward and acceleration feedforward with directional scaling and friction compensation. The speed ring is not suitable because it is handled by the drive or valve. The 1756-M02AS module has a 32-bit floating-point gain resolution and an absolute position range of 4,294,967,296 sensor counts. It has optional rates of 500Hz, 666.7Hz, 1kHz, 2kHz and 4kHz, and update cycles of 250 A μsec, 500A μsec, 1msec, 1.5msec and 2msec. It has a resolution range of 8 to 31 bits and has an isolated 5V differential electrical interface (RS-422 signal). It also has a 215 ohm differential input impedance and a 100 ohm minimum output load. It is clocked at 205kHz or 625kHz, and the transducer can be binary or gray code. It is a light-isolated current absorption module. The 1756-M02AS module has a nominal input voltage of 24V DC, a maximum voltage of 8.5V DC in the off state, and a voltage range of 17V DC to 26.4V DC in the on state. Its current consumption at 5.1V DC and 24V DC is 700 mA and 2.5 mA respectively. It also has a power consumption of 5.5 W, heat dissipation of 18.77 BTU/hr, and isolation voltage of 30V, which is continuous from user to system.

Allen-Bradley 1756-M02AS is a motion control interface module. This module is specifically designed to simulate motion modules for both open loop and closed loop motion applications. The module has built-in support for 2 motion axes - however, additional modules can be installed if needed so that up to 32 motion axes are available per ControlLogix processor.

The 1756-M02AS supports torque position and speed loops. For position loops, proportion + integral + differential (PID) and velocity feedforward are used, while for velocity loops. Uses ratio + integration (PI) and acceleration feedforward, including directional scaling and friction compensation functions. The module can also control the speed or hydraulically driven position loop. In this way, a combination function of position and velocity is used, where PID with velocity feedforward and acceleration feedforward with directional scaling and friction compensation are used.

1756-M02AS 同步串行接口或 SSI 伺服模块 模拟伺服接口模块

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