|
Example Program for
ALPHA Series
3.
Ventilation Control of Greenhouse: Case 1 | |
|
In
this example ventilation fans are operated to regulate the density of
carbon dioxide gas or warmth in a greenhouse. The ALPHA series' Hour Meter
is used to control the ventilation fans in a long cycle
period. The
second fan is controlled via a Delay Timer which sets a certain time
difference between the starting time of the two
fans. Contents of
Control:
Installing and
Wiring:
Refer
to the ALPHA/ALPHA2 Hardware Manuals for correct installation and wiring
procedures. Program:
Refer
to the ALPHA/ALPHA2 Programming Manuals for explanations concerning
function blocks and program input. Refer to the a Software Manual when
using the AL-PCS/WIN-E programming software. | |
|
|