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START OF THE UNIT
3
3.1 Software upload
Upon initial installation the cards must be programmed by uploading the software inside the "Flash" memory.
This operation can be performed only using the "Service" software.
The computer communicates with the pCO board using a USB-RS485 converter.
3.2 Unit power supply
WARNING:
Connect the unit to the power supply at least 8 hours before starting it.
Failure to do so, will make the guarantee null and void.
When the unit is fed, wait approximately 35 seconds before the application starts to run. This time interval may not be cancelled
because it is necessary for the control board to initialise the user terminal. During this stage, the user terminal display is on but
it does not show anything.
When starting the programme, ventilation starts automatically without any delay, unless the unit is not connected to the local
LAN network. In this case, each unit of the network is activated after a delay in seconds equal to the LAN Address x5, in order
to prevent all the units from starting together when the power returns after a black-out. This risk cannot be avoided if there are
several units that are not connected with each other in a network.
During start-up of the direct expansion units, a control is carried out to check that the sequence of the phases is correct before
ventilation is started. If the sequence is not correct, ventilation is not started and the "incorrect phase sequence" alarm is
triggered.
3.3 Start of ventilation
There are different procedures for switching the unit on or off:
•
using keys on the user interface;
•
by selection on the display.
The procedures take the following priority in case of conflicts (from highest to lowest priority):
1.
On/Off from user interface.
2.
On/Off from digital input.
3.
On/Off from local network (LAN).
4.
On/Off from time bands.
5.
On/Off from supervision.
INFORMATION:
If the unit is equipped with a delivery damper, the ventilation will start with a delay defined using
parameter P27.12.
1.
Using the user interface:
The "On/Off" parameter is displayed on the main mask. "Off" means that the unit is switched off while "On" means that the unit
is switched on.
Proceed as follows:
•
To switch on:
o
go to the "On/Off" parameter by pressing [ENTER];
o
press [UP ] or [DOWN] so that "On" appears;
Press [ENTER] again to confirm. If "On" continues to be displayed it means that the unit has been switched
o
on.
•
To switch off:
Move to the "On/Off" parameter and change to "Off" using the same procedure used to switch the unit on;
o
Press [ENTER] again to confirm. If "Off" continues to be displayed it means that the unit has been switched
o
off.
Version 38
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