Automation Direct ProSense VFS50-5-1001 Інструкція з експлуатації Посібник з експлуатації - Сторінка 5

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1. Troubleshooting

4.1 Switching output

OUTx changes its switching status if it is above or below the set switching limits

(flow or temperature). Hysteresis or window function can be selected. Example of

volumetric flow monitoring:

Hysteresis function

SP = set point

rP = reset point

HY = hysteresis

Hno = hysteresis NO (normally open)

Hnc = hysteresis NC (normally closed)

When the hysteresis function is set, the set point [SPx] is defined first and

then the reset point [rPx] which must have a lower value. If only the set

point is changed, the reset point remains constant.

When set to the window function, the upper limit [SPx] and the lower limit

[rPx] have a fixed hysteresis of 0.25 % of the final value of the measuring

range. This keeps the switching status of the output stable if the flow rate

varies slightly.

Window function

SP = upper limit

rP = lower limit

FE = window

Fno = window NO (normally open)

Fnc = window NC (normally closed)