28
004778250 - 30/03/2020
Pag. 6/18
0CAR6IN019147
SOLAR Profile
On the basis of this profile it is advisable to set
the PWM duty cycle parameters as shown
below:
PWM2
Vmin: U01 >= 15%
Vmax: U02 <= 95%
In the following conditions the PWM can be setup with the following parameters:
➢
ANTIFREEZE
:
U03, U13 e U23
➢
SAFETY
:
U04, U14 e U24
➢
ANTISEIZE
:
U05, U15 e U25
FLOW SWITCH TYPE
In the hydrauilc plants where the
Flow Switch
is expected, the sensor type is selected through
P33
parameter:
➢
P33
= 1, management of ON/OFF type Flow Switch input;
➢
P33
= 2, management of Flow Switch input through a flow rate sensor that gives a square wave signal with
frequency according to the flow rate.
If a flow rate sensor (
P33
=2) is used, the selection of the minimum flow rate to detect is set by the parameter
P34
.
The
ELTEK
sensor (code 10.0884.00.03) connections are:
GND
= pin
16
(GND);
OUT
= pin
15
(SEG);
IN
= pin
18
(+V)
The frequency value according to the flow rate (at 30°C) is as follow:
l/min
Hz
2
11,9
4
26,2
6
40
8
53,7
10
67,5
12
81,8
The selection of the flow rate to detect is set by the parameter
P34
: the set value must be twice the value the corresponding
frequency. For example if the flow rate is 2 l/min, you need to set
P34
=24
In order to detect even smaller flow rate in the hydraulic circuit, we recommend to set
P34
=5.