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Access 4.x |
Fan control Type: External (configuration example) |
Configuration of "External" fan control type |
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Variable |
Available options & Selection |
Note |
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Activation of fan control functions |
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Configuration > Functions > Function activation > |
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Fan control type |
... | External | ... |
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Fan levels |
... | Low-Normal | ... |
Choice of fan levels to be used |
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Fan configuration |
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Configuration > Functions > Fan control |
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Fan |
| Supply air + Extract air | ... |
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Type of feedback supply air fan |
| None | Alarm | Run Indication | |
Function of the digital input of the fan feedback. Tripping of the digital input activates the alarm "AL-1" or "AL-6" |
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Type of feedback extract air fan |
| None | Alarm | Run Indication | |
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PID settings |
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Configuration > PID controllers > Supply air fan |
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P-band |
[500] Pa |
PID settings of the supply air fan |
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I-time |
[60] s |
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D-time |
[0] s |
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Configuration > PID controllers > Extract air fan |
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P-band |
[500] Pa |
PID settings of the extract air fan |
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I-time |
[60] s |
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D-time |
[0] s |
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Interface to the fans and external control |
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Configuration > I/O allocation settings > |
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Analog inputs > External control supply air fan |
Any available I/O |
Reference signals for individual fan speed adjustment |
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Analog inputs > External control extract air fan |
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Digital inputs > Feedback supply air fan |
Start, speed and feedback signals to hardwired fans. These IOs can stay unconfigured for modbus fans. |
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Digital inputs > Feedback extract air fan |
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Analog outputs > Supply air fan |
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Analog outputs > Extract air fan |
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Digital outputs > Supply air fan start |
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Digital outputs > Extract air fan start |
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Operational settings |
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Data & Settings > Fan control > Supply air fan |
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Start delay |
[60] s |
Delay of fan start and stop at starting and stopping of the unit |
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Stop delay |
[180] s |
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Outdoor air damper stop delay |
[0] s |
Damper closing delay for avoiding over-pressure at fan stop |
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Data & Settings > Fan control > Extract air fan |
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Start delay |
[0] s |
Delay of fan start and stop at starting and stopping of the unit |
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Stop delay |
[30] s |
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Exhaust air damper stop delay |
[0] s |
Damper closing delay for avoiding over-pressure at fan stop |
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Run schedule |
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Time settings > Schedule |
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Fan Low Speed |
> |
Run schedule for each fan level |
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Fan Normal Speed |
> |
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