Configurable PV Control Inputs

PV Control inputs allow you to select the following:

PV Control Input Source (PV Input, PV Switch) from the configured PV inputs and switches for the avatar
PV Control Logic (Positive, Negative) of each input source that determines how the pump will operate

PV Control Input Settings

	PV Control Hysteresis		PV Control Status (Negative Logic)
	PV Input Value		ON
	PV Control Level		OFF
	PV Control Status (Positive Logic)		OFF

PV Control inputs configured with an analog PV Input source also have a configurable PV Control Hysteresis percentage that can be set.

NOTE: Hysteresis is a window to avoid spurious state changes with small signal variations on analog sensors.

For example, if the control input level is set at 10 °C with a PV Control Hysteresis of 10%, this would trigger a change in the pump command:

When crossing 9 °C in the decreasing temperature direction
When crossing 11 °C in the increasing temperature direction

If the PV Control Hysteresis setting for a PV Control input is updated while the system is operational, to avoid unexpected behavior, the PV Control input state does not immediately change. The PV Control input changes state when the input value crosses the updated threshold in the appropriate direction.

The configurable PV Control Logic setting for positive and negative logic for the PV Control inputs are as follows:

Positive Logic: The PV Control input provides a Run command to the avatar when the associated PV input is above the PV control level (with hysteresis) or the associated PV switch is a logical high (that is, 11 °C). The PV Control input provides a Stop command to the avatar when the associated PV input is below the PV control level (with hysteresis) or the associated PV switch is a logical low (that is, 9 °C).
Negative Logic: The logic is inverted compared to the Positive Logic configuration. The PV Control input provides a Run command to the avatar when the associated PV input is below the PV control level (with hysteresis) or the associated PV switch is a logical low (that is, 11 °C). The PV Control input provides a Stop command to the avatar when the associated PV input is above the PV control level (with hysteresis) or the associated PV switch is a logical high (that is, 9 °C).

The PV Control mode setting determines if the Pump operates based on separate or combined PV control.

Separate Control: If either one of the PV Control inputs’ status is On, PV Control input provides a Run command to the avatar .
Combined: Both PV Control inputs based on the PV Control Logic, PV Control Hysteresis, and the PV Control Level settings must provide a Run command to the avatar .