KJ2201X1-BA1串行链路模块,KJ2201X1-BA1实验数据
如果HSS模块与MFP模块失去通信，手动控制电路使操作员能够手动
改变执行器位置。HSS模块提供两个24 VDC隔离数字输入，作为来自手动站（按钮、触点等）。这些输入连接到微处理器。微处理器增量
或在以下情况下减少对伺服阀的位置需求：操作员激活触点。图2-5为示意图一个典型的隔离数字输入电路。跳闸偏差是第三个数字输入。
KJ2201X1-BA1串行链路模块跳闸偏置输入信号为发送至位置误差电路（见图2-3）。激活跳闸偏差输入将执行器驱动至0%位置（完全关闭）关闭。硬手动是一种隔离输出为外部指示灯（LED）或惊恐指示器通知操作员模块处于
硬手动模式。本节涵盖静电感应装置、终端装置或模块安装、初步双列直插式开关设置、跳线设置、液压伺服（HSS）的正确处理模块安装和配置。本节中的步骤为LVDT/致动器校准和调谐。
If the HSS module loses communication with the MFP module,
the manual control circuitry enables the operator to manually
change actuator position. The HSS module provides two
24 VDC isolated digital inputs as raise/lower commands from
a manual station (pushbuttons, contacts, etc.). These inputs
connect to the microprocessor. The microprocessor increments
or decrements a position demand to the servo valve when the
operator activates the contacts. Figure 2-5 shows a schematic
of a typical isolated digital input circuit.
Trip bias is the third digital input. The trip bias input signal is
sent to the position error circuit (see Figure 2-3). Activating the
trip bias input drives the actuator to the zero percent position
(fully closed) for shutdown. Hard manual is an isolated output
that provides a connection for an external indicator (LED) or
alarm. The indicator notifies the operator that the module is in
the hard manual mode.This section covers the proper handling of electrostatic sensitive devices, termination unit or module installation, preliminary dipswitch settings, jumper settings, hydraulic servo (HSS)
module installation and configuration. The steps in this section prepare the module for LVDT/actuator calibration and
tuning.
