MODBUS Registers
MODBUS
MODBUS
Parameter Name and
Register
Register
Description
Base 0
Base 1
PF18
Minimum speed in
0x07B5
1974
ventilation control mode
PF19
Maximum speed in
0x07B6
1975
ventilation control mode
PF20
0x07C6
1991
Maximum speed limit
PF07
Ventilation cut-off in
0x07AB
1964
cooling /condensing mode
PF08
Regulation temp.
differential for over-speed
start-up in
0x07AC
1965
cooling/condensing mode
PF09
Regulation temp.
differential for over-speed
deactivation in cooling
0x07AD
1966
/condensing mode
PF25
Speed for reduction in
0x07BB
1980
number of active fans
PF26
Speed for increase in
0x07BC
1981
number of active fans
PF27
Waiting time for
increase/decrease in
0x07BD
1982
number of active fans
4.3.3
Step to wet resources supply adjustment
Upon meeting the PR04 resource requirement, with ambient temperature above the wet resources enable threshold,
the adjustment enters wet mode, and a different resource is enabled depending on the exchanger configuration.
SP-PR03
VENTILATIO
N
You can set a delay time (parameter PR42) to activate the WET setting from the activation of the fans.
LU1W - User Manual
Data Type and Notes
[%]
- unsigned short int
[%]
- unsigned short int
[%]
- unsigned short int
[unit of measure as set by
PH02, default °C]
- unsigned short int
[unit of measure as set by
PH02, default °C]
- unsigned short int
[unit of measure as set by
PH02, default °C]
- unsigned short int
[%]
- unsigned short int
[%]
- unsigned short int
[sec]
- unsigned short int
PR04%
1 ° Wet (PA or Spray)
PR03
Adjustment band Subdivision
42
Default
min
Max
value
0.00
0.00
100.00
100.00
0.00
PF20
100.00
0.00
100.00
0.0
0.0
149.0
10.0
PF09
18.0
5.0
0.0
PF08
15.00
0.00
100.00
25.00
0.00
100.00
60
1
9999
PR05%
2 ° Wet (Spray in AP + Spray)
REV.1.1 – 07/11/2017 - ENG
MODBUS
Decimal
Register
positions
Type
0.00
holding
0.00
holding
0.00
holding
0.0
holding
0.0
holding
0.0
holding
0.00
holding
0.00
holding
0
holding
SP
T