31
8.9. RESET FILTER ALARM
After each time the fi lter is replaced, the fi lter alarm
must be reset.
The symbol is lit, when the pre-set timer
for the fi lter replacement is exceeded. The
fi lter must be replaced, see page 35.
If the fi lter is not changed within 60 days,
then the ventilation system shuts down
automatically.
9. REDUCED LIST OF MODBUS REGISTERS
NEMBUS device has a RS485 communication port located
on position 32 in the main circuit board (see page 9).
The Slave Address by default is 1, if few units are connec-
ted in the Modbus network, the address of each one must
be different from the others. The communication parame-
ters must be the same for all units connected on the same
network. For more information regarding the communica-
tion parameters see the table of Holding Registers below:
DISCRETE INPUTS (Read only)
Modbus Adress
Register
Values
Description
Default
Data type
10001
Active alarms
0
No alarm active
Single Bit
1
At least one alarm active
Single Bit
10002
Filter alarm
0
Alarm off
Single Bit
1
Alarm on
Single Bit
10007
Temperature sensor (extract
air) status
0
Correct
Single Bit
1
Error
Single Bit
10008
Temperature sensor
(exhaust air) status
0
Correct
Single Bit
1
Error
Single Bit
10009
Temperature sensor
(outdoor air) status
0
Correct
Single Bit
1
Error
Single Bit
10010
Temperature sensor (supply
air) status
0
Correct
Single Bit
1
Error
Single Bit
10011
Extract air fan status
0
Correct
Single Bit
1
Error
Single Bit
10012
Supply air fan status
0
Correct
Single Bit
1
Error
Single Bit
10016
Automatic by-pass
0
Not active
Single Bit
1
Active
Single Bit
10029
Boost contact status
0
Not active
Single Bit
1
Active
Single Bit
10030
Boost status
0
Boost active
Single Bit
1
Boost not active
Single Bit
OUTPUT COILS (Read/Write)
Modbus Adress
Register
Values
Description
Default
Data type
1
Reset filter alarm
0
Do not reset
0
Single Bit
1
Do reset
Single Bit
8
Manual by-pass
0
Not active
0
Single Bit
1
Active
Single Bit
9
Allow automatic by-pass
0
Do not allow
1
Single Bit
1
Allow
Single Bit
10
Summer mode status
0
Off
0
Single Bit
1
On
Single Bit
17
Manual boost
0
Off
0
Single Bit
1
On
Single Bit
18
Snooze mode
(unit stops for 1h)
0
Off
0
Single Bit
1
On
Single Bit
26
Working mode
0
Manual
0
Single Bit
1
Automatic
Single Bit
NOTE
At the factory, the timer for the fi lter alarm was set
at 12 months. Replacing of the fi lter is highly depen-
dent on the pollution of the outdoor air (pollen count,
construction site activity). The timer for the fi lter
alarm can be adjusted to 6 months, 9 months or 15
months, see page 25.
Press symbol for about 5 seconds. The fi lter
alarm is reset.
The light on the symbol goes out.
Summary of Contents for NEMBUS 210
Page 1: ...NEMBUS 210 EN...
Page 2: ......
