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6 controlled variable, 7 window type, Controlled variable – CIRCUTOR MDC-20 User Manual

Page 34: Window type

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MDC-20

Page 34 of 58

User Manual

8.1.6 Controlled variable

Allows you to select the parameter to control in the installation between Active Power or
Apparent Power.

Fig.8-8 . – Power to control

Confirm that the units selected in this section are consistent with the variable selected
in the control variable field.

8.1.7 Window type:

Allows you to select the type of integration window used to apply the power control.

Fig.8-9 . – Integration window

Fixed window: The integration window time is of equal duration to that configured in the

“integration period” field (chapter 8.1.1). If there is an external sync pulse, the window
time will be equal to the time between impulses. If a sync pulse occurs or the integration
period configured by the user has finished, that integration period will be restarted by
resetting the energy meter for the period back to zero.

Fig.8-10 . – Fixed integration window

Sliding blocks: The integration period is divided into N time intervals equal to that

configured in the “integration time” field. The calculation window therefore consists of N
sliding blocks.

Fig.8-11 . – Sliding blocks integration window