☆型号:200-510-071-113 机械保护卡 四个动态信号输入
【产品详情】
MPC4卡
MPC4机械保护卡是
VM600系列机械的核心元件
保护系统(MPS),来自梅吉特
Vibro-Meter®产品线。这张万能卡片
是否能够测量和监控到
四个动态信号输入和多达两个速度
同时输入。
动态信号输入是完全可编程的
并能接受表示的信号
加速度,速度和位移
(接近)等等。机载多通道处理允许测量
各种物理参数,包括相对
和绝对振动,Smax,偏心,推力
位置,绝对和差动壳体
膨胀、位移和动压力。
数字处理包括数字滤波、
积分或微分(如果需要);
整流(有效值、平均值、真峰或真值)
峰对峰),顺序跟踪(振幅和
相位)和测量的传感器目标
差距。
速度(转速表)输入接受信号
从各种速度传感器,包括系统
基于接近探头,磁脉冲拾取传感器或TTL信号。部分转速表
也支持比率。
配置可以用度量或表示
帝国的单位。警报和危险设定值已满
可编程,报警延时,
迟滞和锁存。警觉与危险
水平也可以作为一个函数来调整
速度或任何外部信息。
数字输出是可用的内部(在
对应的IOC4T输入/输出卡)
报警级别。这些报警信号可以驱动四个
本地继电器上的IOC4T卡和/或可以
使用VM600机架的Raw总线或Open路由
收集器(OC)总线上驱动继电器可选
继电器卡,如RLC16或IRC4。
处理后的动态(振动)信号和
速度信号在机架的后部可用
(在IOC4T的前面板上)作为模拟
输出信号。基于电压(0至10 V)和
电流为基础(4至20ma)的信号提供。
MPC4执行自检和诊断
例行公事上电。此外,卡内内置“OK系统”持续监测液位
由测量链(传感器)提供的信号
和/或信号调节器),并表示任何
问题是传输线断了,有故障
传感器或信号调节器。
MPC4前面板上有LED指示灯
指示是处理错误还是硬件错误
发生。六个额外的led(每个输入一个)
通道)指示OK系统是否有
是否检测到故障,是否存在告警
发生在通道上。
MPC4卡有三种版本
“标准”版本,“独立电路”版本
和一个“安全”(SIL)版本,所有这些功能
使用相应的IOC4T输入/作为卡对
输出卡
☆型号:200-510-071-113 机械保护卡 四个动态信号输入
【英文介绍】
MPC4 card
The MPC4 machinery protection card is the
central element in the VM600 series machinery
protection system (MPS), from Meggitt’s
Vibro-Meter® product line. This very versatile card
is capable of measuring and monitoring up to
four dynamic signal inputs and up to two speed
inputs simultaneously.
The dynamic signal inputs are fully programmable
and can accept signals representing
acceleration, velocity and displacement
(proximity), among others. On-board multichannel processing allows measurement of
various physical parameters, including relative
and absolute vibration, Smax, eccentricity, thrust
position, absolute and differential housing
expansion, displacement and dynamic pressure.
Digital processing includes digital filtering,
integration or differentiation (if required),
rectification (RMS, mean value, true peak or true
peak-to-peak), order tracking (amplitude and
phase) and measurement of the sensor-target
gap.
The speed (tachometer) inputs accept signals
from a variety of speed sensors, including systems
based on proximity probes, magnetic pulse pickup sensors or TTL signals. Fractional tachometer
ratios are also supported.
The configuration can be expressed in metric or
imperial units. Alert and Danger set points are fully
programmable, as are alarm time delay,
hysteresis and latching. The Alert and Danger
levels can also be adapted as a function of the
speed or any external information.
A digital output is available internally (on the
corresponding IOC4T input/output card) for each
alarm level. These alarm signals can drive four
local relays on the IOC4T card and/or can be
routed using the VM600 rack’s Raw bus or Open
Collector (OC) bus to drive relays on optional
relay cards such as the RLC16 or IRC4.
The processed dynamic (vibration) signals and
speed signals are available at the rear of the rack
(on the front panel of the IOC4T) as analog
output signals. Voltage-based (0 to 10 V) and
current-based (4 to 20 mA) signals are provided.
The MPC4 performs a self-test and diagnostic
routine on power-up. In addition, the card’s builtin “OK system” continuously monitors the level of
signals provided by a measurement chain (sensor
and/or signal conditioner) and indicates any
problem due to a broken transmission line, faulty
sensor or signal conditioner.
An LED indicator on the MPC4 front panel
indicates whether a processing or hardware error
has occurred. Six additional LEDs (one per input
channel) indicate whether the OK System has
detected a fault and whether an alarm has
occurred on the channel.
The MPC4 card is available in three versions: a
“standard” version, a “separate circuits” version
and a “safety” (SIL) version, all of which function
as a card pair using a corresponding IOC4T input/
output card
☆型号:200-510-071-113 机械保护卡 四个动态信号输入
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