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I'm trying to design the control logic for a cooling only evaporative type airconditioner to regulate a small enclosure. The device reduces outflow air compared to inflow air by about 10°. The fan in the aircon then provides some level of airflow throughput control.
I perceive the 'Intelligent Temperature Controller' function block is not really designed for the device I'm trying to use. It seems setup to regulate a 0-10V valve. So I'm to trying to understand basic function blocks to build a feedback loop (unsuccessfully!)
The controlling options available are -
ON - This is a virtual output that sends an ON command to the device. It starts and the fan speed is whatever was set when last switched off.
OFF - Virtual output that sends an OFF command.
Fan Increase - Virtual output that sends a command that increases fan speed by about 4% of it's full range.
Fan Decrease - Virtual output that sends a command that decreases fan speed by about 4% of it's full range.
I've set up a simple ON/OFF control logic (picture attached) with a dead zone of 2°. The 'Upper Temperature' range is selectable by virtual input.
Now I wish to control the fan speed against a defined temperature slope. Feedback is available from the device on what the fan speed is at any given moment (via virtual input).
The problem I'm running into is designing a feedback loop for fan step changes up/down against a temperature profile.
Does anyone have a pre-existing Loxone config design that would suit the task? Or any helpful tips?
I perceive the 'Intelligent Temperature Controller' function block is not really designed for the device I'm trying to use. It seems setup to regulate a 0-10V valve. So I'm to trying to understand basic function blocks to build a feedback loop (unsuccessfully!)
The controlling options available are -
ON - This is a virtual output that sends an ON command to the device. It starts and the fan speed is whatever was set when last switched off.
OFF - Virtual output that sends an OFF command.
Fan Increase - Virtual output that sends a command that increases fan speed by about 4% of it's full range.
Fan Decrease - Virtual output that sends a command that decreases fan speed by about 4% of it's full range.
I've set up a simple ON/OFF control logic (picture attached) with a dead zone of 2°. The 'Upper Temperature' range is selectable by virtual input.
Now I wish to control the fan speed against a defined temperature slope. Feedback is available from the device on what the fan speed is at any given moment (via virtual input).
The problem I'm running into is designing a feedback loop for fan step changes up/down against a temperature profile.
Does anyone have a pre-existing Loxone config design that would suit the task? Or any helpful tips?