EVCO EPU2LXP1CH Installer manual - Manual (Page 65)

EVCO S.p.A. c-pro 3 micro CHIL | Application manual ver. 1.0 | Codice 144CP3CHE104
page 65 of 120
8.9 Fan Management
The program is capable of managing up to 2 fans, i.e. one for each circuit. It is possible to associate to each fan a safety digital input
and a digital output for ON/OFF switching.
8.9.1 Fan status
Each fan has an associated operating status in the status template of the main menu. A fan can take on the following statuses:
Disabled: The fan has not been configured, the status display shows “-”.
On: The status display shows “ON”.
Waiting to switch ON: The fan is waiting for protection timings, before switching ON. The status display shows “WON”.
Off: The status display shows “OFF”.
Waiting to switch OFF: The fan is waiting for protection timings, before switching OFF. The status display shows “WOFF”.
Alarm: The fan is in alarm status. The status displays shows “ALARM”.
Manual: The fan is in manual operating mode. The status display shows “MANUAL”.
In the Maintenance Operator menu, via parameters PM41 and PM42, it is possible to read the number of operating hours of the two
fans. To zero these hours when required, it is sufficient to enter a “0” value, using the ENTER key.
8.9.2 Fan timings
There now follows a list of all timings connected with the management of fans.
Protection Timings
The purpose of these delays is that of protecting fans from the various start-up stresses to which they are subjected and of avoiding
simultaneous start-ups.
PF07 = Minimum time between start-ups of different fans. It determines the minimum time which must elapse between the start-up of
a fan and that of the next one.
PF08 = Minimum time between shutdowns of different fans. It determines the minimum time which must elapse between the shutdown
of a fan and that of the next one.
8.9.3 Thermal Protection Inputs
The program provides for the management of a single fan thermal protection for each of the fans configured within the application.