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Join Date: May 2011
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Fail Safe Mode in Vibrating Switch

03/20/2017 11:04 AM

hello all,

1.what the use of Fail Safe mode In Vibrating Switch ??

2.why Fail safe mode option available only in Vibrating Switch ??

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#1

Re: Fail Safe mode in Vibrating switch

03/20/2017 11:12 AM

"A fail-safe in engineering is a design feature or practice that in the event of a specific type of failure, inherently responds in a way that will cause no or minimal harm to other equipment, the environment or to people."

https://en.wikipedia.org/wiki/Fail-safe

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#2

Re: Fail Safe Mode in Vibrating Switch

03/20/2017 11:40 AM

If you want a good answer you should either contact the the manufacturer of this vibrating switch or provide us with a part number and manufacturer.

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#6
In reply to #2

Re: Fail Safe Mode in Vibrating Switch

03/21/2017 3:45 AM

Preferably the first of those, so the Original Poster doesn't get disdain from the forum by doing the second.

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#3

Re: Fail Safe Mode in Vibrating Switch

03/20/2017 12:22 PM

You mean like this? Are you building another insidious device, shame, shame if you are.

Fast Vibration sensor switch

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#4

Re: Fail Safe Mode in Vibrating Switch

03/20/2017 5:04 PM

Your English is ambiguous. Do you want a switch that detects vibration above a set point? Or is your switch in vibratory motion?

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#5

Re: Fail Safe Mode in Vibrating Switch

03/21/2017 12:20 AM

Depending upon the process requirement, the minimum or maximum fail - safe mode can be selected in the Vibration Switch.

In Vibration Switch the Relay is in energised condition. When level changes state the relay de - energizes. Thus, besides level alarm condition, the operator gets an alarm even in case of mains failure or the instrument failure. This imparts a better overall reliability of operation.

Maximum fail safe mode means the relay de - energizes when the level exceeds the desired or when mains supply fails.

Minimum fail safe mode means the relay de - energizes when the level drops below the desired level or when mains supply fails.

NOTE : The contacts shown on the Logic Card Panel are for Fail Safe Low Mode.The contacts would change when Fail Safe Mode

is changed.

CONNECTION DRAWING :

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