Nicotra EC FAN FDP, Руководство по эксплуатации, Страница: 31 / 40

Rev. 0 - 11/12/2020
OPERATING MANUAL OPERATING MANUAL
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16.1 Temporary holding register
The Holding Register 66 is a special register used in each operating mode for setting the speed, the airflow, the slip and the PID
reference.
It is not a physical register and it can be written, but it is not possible to read its value. The setting remains active until the fan is
powered on.
If the fan is powered off but there is a residual charge, the microcontroller of the driver is still functioning. Therefore, if
it is powered on in this situation the value set through the register 66 is still active.
16.2 Fixed holding register
The drivers Holding Registers permanently stored into the EEPROM are 64, but only 26 registers are modifiable by the end user
(see the table in the following page).
The most important Holding Register 34 is the Input Type related to the selection of the Operating Mode.
0 Reset
1 Min Speed
2 Max Speed
7 Max Current
21 Fixed Speed Setting
30 Asynchronous Slip Setting
31 PID positive/negative
32 Avoid Range Start
33 Avoid Range End
34 Input Type
36 Max Power Out
39 Constant Airflow Setting
42 Min Airflow
43 Max Airflow
45 Modbus Address
46 Tacho\Alarm\Filter
47 Modbus Baud rate
48 Modbus Parity and Stop Bits
50 External PID Setting
51 PID Kp
52 PID Ki
53 PID Kd
54 PID Time
55 Speed Threshold
56 Communication Timeout
16.3 Holding register description
The Holding Register must be set with the fan stopped.
Changing the parameters while the fun is running may cause unexpected behavior.
CAUTION CAUTION
Do not set the values outside the indicated limits, the driver could stop working without any alarm indication, it could be reset
or work in an undefined condition.
WARNING WARNING
If the below reported "Allowed values" are written between square brackets, they must be read as "maximum" and
"minimum".