EVCO EPU2BXP1S1 - Manual (Page 43)

EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
page 43 of 68
6.1.1 OFF state for alarm
When the machine is active and an heavy alarm occurs the unit switches into the OFF due to alarm status. In this
case the unit and all devices are switched OFF and the dampers are completely closed until the alarm condition has
been reset. When the unit is OFF for alarm it is possible to switch to the other OFF states by means of the relevant
digital input, key or supervisor.
The alarms that cause the “OFF for alarm” are:
- Supply fan thermal overload alarm
- Return fan thermal overload alarm
- Differential pressure switch alarm
- Outdoor air Damper limit switch alarm
The unit recovers the normal working mode when the alarm has been reset.
6.2 Unit Type
While the machine is turned off, using the parameter PG00 in the MANUFACTURER Menu, it is possibile to choose the
type of unit that you wish to utilize. Based on the value of the parameters, different defualts become available for the
configuration parameters. The regulation parameters can be modified manually according to user requirements.
Note. The default configurations can also be modified according to user requirements by entering modifications to the
paramaters manually.
ATTENTION. When changing the machine type (through modification of parameter PG00) it is necessary to shutdown
and then restart the card to ensure the unit has been correctly configured; in order to allow the card to assign all the
parameters contained therein it is advisable to wait a few seconds (3 seconds should be more than sufficient) before
removing the tension.
6.3 RTC setting
When the board is disconnected from the mains for many days the RTC (Real Time Clock) system clock backup battery
discharges. At the next connection to the mains the controller will display an RTC alarm. To get rid of it and allow a
proper working condition the RTC has to be updated using the below mask:
Once the clock is configured, press OK to update the RTC and access the main page of the application. Confirmation
by pressing OK also resets any clock alarm (AL16) as long as the alarm conditions are reset.
If the alarm should not disappear switch OFF and back ON power supply to the board and manually reset the alarm.