Mts FlexTest Models 200 Bedienungsanleitung PDF herunterladen (Seite 24)

MTS FlexTest® Models 40/60/100/200 Controller Hardware

Safety Circuits

Safety Information

Hardware Interlocks

A Series 494 controller running Series 793 Control Software can have up to eight

separate hardware interlock chains. Each test station configuration that you open

must be assigned to a unique hardware interlock chain. This allows one controller

to run up to eight test stations, each with its own hardware interlock chain.

Note Some test configurations may only use one station that is assigned to a

single hardware interlock chain.

The controller can generate two type of hardware interlocks, global interlocks,

and station interlocks:

Global interlocks Global interlocks detect controller chassis conditions (such as watchdog timers

and undervoltage conditions) that can affect any station running on the controller.

A global interlock forces all eight hardware interlock chains to an active state.

Station interlocks Station interlocks are associated with a specific test station and will force the

hardware interlock chain assigned to that station to an active interlock state.

Series 494 controllers include interlock output contacts (NO/NC) that are

intended to provide hardware interlock status to external systems.

Note If necessary for critical applications, you can use an external I/O

monitoring device to monitor both NC and NO contacts to detect state

changes and verify relay integrity.

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Mts FlexTest Models 200 Bedienungsanleitung Seite 24