VISION SC600
Pag. 33
Rev. 02-18
USE AND MAINTENANCE MANUAL
iEn = 2: fan inverter management enable
With iEn=2 you will have the Condenser fan control with 0-10V analogue output and of
sideband-type adjustment. Digital Output
“Fan 1” represents "the condenser fans inverter
activation"; the other fans digital outputs are disabled (all fans are controlled by the
inverter). The compressors are controlled by digital outputs and sideband-type adjustment.
The adjustment follows the operation of graph no.5 with the increase of the output
pressure and the decrease of graph no.6.
Output pressure INCREASE (Graph n.5):
The analogue output of the adjuster will be 0V for output pressure probe less or equal to
point (B) representing the "SET point + iOv offset" value.
If the output pressure probe value is higher than point (B), you will have the analogue
output at 10V for the maximum BOv time. BOv is the Fans Boost times for which the
adjuster output is increased by 100% in order to help the start-up of the fans.
Between points (B) and (C), the analogue output will have a value proportional to the value
of the output pressure probe starting from the minimum value of the parameter (iMv) up to
the maximum value of 10V. With output pressure probe values equal or higher than point
(C), you will have a 10V analogue output. Digital output no.1 represents "the condenser
fans inverter activation" and is ON for pressure values higher than or equal to the set point
and OFF for lower values.
CHAP. 5 - Data programming
