Hardware tab, Excitation failure detection, About excitation failure detection – MTS Series 793 User Manual

Page 214: Excitation failure mode settings

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8. Clear the Enable Manual Command check box.

Hardware Tab

Access

Station Setup window > navigation pane > Channels PIDF control mode > Channel Input Settings Icon >
Hardware Tab

The hardware tabdisplays the following information about hardware resources:

Resource

Connector

Serial Number

Normalization Date

Board Revision

Firmware Revision

Programmable Logic Device Revision

Excitation Failure Detection

About Excitation Failure Detection

The Limits tab for each channel input allows you to set upper/lower limits and actions, and Excitation Failure
Mode and action settings.

Note:

You can also use the Station Setup Limit Detectors panel (listed under Detectors) to set limits and
actions for all inputs.

Series 493 and 494 Conditioners include circuits that can detect an excitation failure. The most common
cause of an excitation failure occurs when you unplug a sensor. Other causes include damaged cables,
sensors, or conditioner hardware.

Settings

You can use the Station Manager application to configure excitation failure detection for each sensor input.
These settings allow you to turn on/turn off excitation failure detection and define the action taken (Series
494 Hardware only) if the hardware detects an excitation failure.

Message log

Each time an excitation failure is detected, a message is written to the message log. This occurs even when
excitation failure detection is disabled.

Excitation Failure Mode Settings

You can use the Limits tab on the Station Setup window to set the Excitation Failure Mode for each sensor
input.

214 MTS Series 793 Control Software

Station Setup

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