KJ2201X1-BA1串行鏈路模塊,KJ2201X1-BA1實(shí)驗(yàn)數(shù)據(jù)
如果HSS模塊與MFP模塊失去通信，手動(dòng)控制電路使操作員能夠手動(dòng)
改變執(zhí)行器位置。HSS模塊提供兩個(gè)24 VDC隔離數(shù)字輸入，作為來自手動(dòng)站（按鈕、觸點(diǎn)等）。這些輸入連接到微處理器。微處理器增量
或在以下情況下減少對伺服閥的位置需求：操作員激活觸點(diǎn)。圖2-5為示意圖一個(gè)典型的隔離數(shù)字輸入電路。跳閘偏差是第三個(gè)數(shù)字輸入。
KJ2201X1-BA1串行鏈路模塊跳閘偏置輸入信號為發(fā)送至位置誤差電路（見圖2-3）。激活跳閘偏差輸入將執(zhí)行器驅(qū)動(dòng)至0%位置（完全關(guān)閉）關(guān)閉。硬手動(dòng)是一種隔離輸出為外部指示燈（LED）或驚恐指示器通知操作員模塊處于
硬手動(dòng)模式。本節(jié)涵蓋靜電感應(yīng)裝置、終端裝置或模塊安裝、初步雙列直插式開關(guān)設(shè)置、跳線設(shè)置、液壓伺服（HSS）的正確處理模塊安裝和配置。本節(jié)中的步驟為LVDT/致動(dòng)器校準(zhǔn)和調(diào)諧。
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.
