enervent Salla eWind, Installation Instructions Manual

Page: 85 / 112

85
Installation instructions for professionals
Do not connect an external bus to the
motherboard before the bus has been
programmed and is compatible with the control
of the unit.
CAUTION
Installation to the Modbus bus
The ventilation unit can also be controlled via the Modbus
connector X26.
Modbus specification:
•
Modbus address 1 (default)
•
Data transmission protocol RS485
•
Modbus traffic via the motherboard’s Modbus
connector X26
•
Speed 9,600, 19,200 or 115,200 bps
•
8-bit
•
No parity or parity
The order of the poles in the Freeway connector is marked
in the controller board.
The Modbus registers are available on the Enervent
website at www.enervent.com.
X26
Setting the Modbus parameters to the
control system
1
Simultaneously press the buttons and
three times in the control panel.
2
Using buttons and , choose the parameters
c31-c32.
• The meaning of each parameter is described in
section ‘Parameter list’ on page 16.
3
Select the parameter to be adjusted by pressing
button
for 3 seconds.
4
Change the parameter value using buttons
and .
5
Confirm the value by pressing button .
6
Exit the settings by simultaneously pressing
buttons
and .