Rev. 1 - 05/10/2021
OPERATING MANUAL
OPERATING MANUAL
EN
EN
44/56
17.3 Holding register description
Do not set the values outside the indicated limits, the driver could stop working without any alarm indica-
tion, it could be reset or work in an undefined condition.
WARNING
WARNING
Holding Register 0: RESET [Adim]
This register can be used to reset the fan by writing the value 1 on it. This register automatically retun to value
0 after being reset. The driver will reset any error condition and it will try to restart.
Allowed values = 0 and 1
Default value = 0
Holding Register 1: Min Speed [RPM]
This register is used to set the minimum speed of the fan.
Allowed values = [Default Value, Max Speed]
Default value = table below
280 315
355 400 450
500
560
630
1.05kW 1-Phase 500 500
400
-
-
-
-
-
2.1kW
1-Phase 800 500
500
200
-
-
-
-
2.65kW 3-Phase 300 300
150
150
-
-
-
-
5.5kW
3-Phase
-
-
300
300
300
300
300
300
If the below reported "Allowed values" are written between square brackets, they must be read as
"maximum" and "minimum".
0 Reset
P. 44
1 Min Speed
P. 44
2 Max Speed
P. 45
7 Max Current
P. 45
21 Fixed Speed Setting
P. 45
31 PID positive/negative
P. 46
32 Avoid Range Start
P. 46
33 Avoid Range End
P. 46
34 Input Type
P. 46
35 Stop Speed
P. 47
36 Max Power Out
P. 47
45 Modbus Address
P. 47
46 Tacho\Alarm\Filter
P. 47
47 Modbus Baud rate
P. 48
48 Modbus Parity and Stop Bits
P. 48
50 External PID Setting
P. 48
51 PID Kp
P. 48
52 PID Ki
P. 48
53 PID Kd
P. 49
54 PID Time
P. 49
55 Speed Threshold
P. 49
56 Communication Timeout
P. 49
17.3.1 Holding Register 0
17.3.2 Holding Register 1
