30
Installation and operation manual
–
DTHC-V4-2020
Fan RPM auto tuning window:
#
Item
Description
-
General
This section is to perform an automatic fan auto tuning. This is necessary
(first start-up and fan replacement) to record the RPM feedback of each
command level. The PLC will be able to match a real demand signal with a
real RPM. The procedure takes approximately 4 minutes.
1
Start Stop
To start or stop the calibration process. IMPORTANT: This procedure is
possible only if the demand contact (I5 on the PLC) is open (not activated).
At the end of the process a confirmation will be asked (see item 4).
2
%
Fan command in %.
3
rpm
Fan rpm feedback during the process (RPM).
4
Accept/Reject Press
accept
or
reject
at least 3 second to save or delete the values.
5
Graphic
Fan rpm feedback curve appears progressively during the process.
6
Home
Go back to Level 2 menu.
IMPORTANT
•
This procedure is suitable to be done once at the first start-up or after fan replacement.
•
The fan auto tuning can be activated
only
if the demand contact (I5 on the PLC) is open (not
activated).
Level 2: Fan RPM auto tuning
Fan auto tune
5
3
2
6
4
1
