Vimar 01532 handleiding

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Vimar

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Handleiding

BUILDING AUTOMATION

Parameter “Hysteresis threshold value in +/- [0…50]%”

This parameter sets the hysteresis value of the threshold. The hysteresis can avoid unnecessary action of the fan when the control value fluctuates near

the threshold. Options:

0 ... 50

If it is 0, there is no hysteresis. Once the control value crosses the threshold, the fan will switch immediately;

Assuming a lag value of 10 and a threshold of 50, there will be an upper threshold of 60 (threshold + lag value) and a lower threshold of 40 (threshold - lag

value), then when the control value is between 40 and 60, it will not cause The action of the fan still maintains its previous state.

Only less than 40 will turn off the fan, and more than or equal to 60 will turn on the fan as shown below:

The threshold value

The lower threshold value

The upper threshold value

The fan ON

The control value

The fan OFF

The following parameters in this subsection are descriptions of fan speed control values.

Parameter “Number of control value”

To set the number of automatic fan speed control values. Options:

1 control value: Only one control value can control the fan speed. Generally suitable for only heating, cooling, or 2 pipes fan coil control systems;

2 control values: There are two control values to control the fan speed. It is usually used in fan coil control systems that support both heating and cooling.

• Parameter “Select by”

This parameter is visible when 2 control values are selected in the previous parameter, it is used to set the switching mode of the control value. Options

Latest value

Control value with switching object

Latest value: The fan coil actuator will control the fan speed based on the latest control value received from the bus;

Control value with switching object: After selecting this option, the object “Switching control value1/2” is visible to switch the control value of fan speed,

message 0 corresponds to control value 1, and message 1 corresponds to control value 2.

Note: When this option is selected, after the automatic operation is activated, it is necessary to enable the control value to be 1 or 2 first, then

the received control value is valid. It does not respond to the received control value until it is clarified. The value received by the object “Switch-

ing control value1/2” is also logged when the automatic operation is not activated.

After the automatic operation exits, the (valid) control value received from the bus will be recorded. After the automatic operation is activated

again, the fan speed will be operated according to the latest control value or fault control value. The effective control value refers to the cur-

rently selected control value. If it is control value 1, then control value 2 is invalid.

Parameter setting description in the ETS

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