Yokogawa Value Series FX1000 Manual de usuario descargar pdf (Pagina 51)

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IM 04L21B01-64EN

Alarm

Basic Setting

• Reflash

To set the reash operation on the alarm output relay, select [ON]. The reash

function is set on the rst three output relays.

Settings Description

Off Reflash is not used.

On Reflash is used. The relays are deactivated for approximately 500 ms.

• Rate of Change Decrease

Set the interval for the rate-of-change calculation of the low limit on rate-of-change

alarm in terms of the number of sampled data points (1 to 32). The actual interval is

obtained by multiplying the value specied here by the scan interval.

• Rate of Change Increase

Set the interval for the rate-of-change calculation of the high limit on rate-of-change

alarm in the same manner as the interval for the low limit on rate-of-change alarm.

• Hold

You can choose to make the alarm displays behave in the following ways.

Settings Description

Unhold Clears the alarm indication when the alarm condition is released (returns to

normal condition).

Hold Holds the alarm indication until an alarm acknowledge operation is performed.

Output relay

• Internal Switch AND

Select the internal switches that are to operate using AND logic. Set the range of

internal switches (from the rst internal switch) to take the AND logic. All subsequent

switches will be set to OR logic.

2.6 Entering Basic Settings

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Yokogawa Value Series FX1000 Manual de usuario Pagina 51