SALUPO IRIS BLUE 3 SQ727 Series, Instruction And Installation Manual

Page: 19 / 28

Motor frequency (0.0Hz);
Current consumption (0.0A);
Plant pressure (0.00bar);
Reference pressure (3.00bar).
In the following screen (fig.1) it’s possible to see the different unit of measure with the following order:
ENGLISH
19
6. PROGRAMMING
+0.0Hz
0.0A
+ 0.00bar
+ 3.00bar
(fig.1)
In order to change the reference pressure and carry it for
example to 4.00 bar, you just have to click on the “MENÙ”
button as shown in fig.2
The reference pressure is visible on the display, set by
default at 3.00 bar. This indicates that during running, when
this value is reached, the inverter will begin to modulate until
it exceeds 3.00 bar and in the meanwhile it reaches the motor
frequency corresponding to the minimum PID percentage
(P237 default 70% = 35Hz).
After about 20s (set by default) of running at minimum
frequency, the inverter will automatically stop activating the
SLEEP mode. The inverter will start up again as soon as the
system pressure has dropped below the SETPOINT
pressure less the rate of awakening (P237b default 5%).
PRef = 3.00bar
Inverter starting threshold 3.00 – 0.8 = 2.2bar
PRef = 3.00bar
P237 b = 5% equals 5% x 10bar = 0.5bar
Es. With 0-10 bar transducer
Inverter starting threshold = 3.00 - 0.5 = 2.5bar
Es. With 0-16 bar transducer
P237 b = 5% equals 5% x 16bar = 0.8bar
With 0-10bar transducer
(fig.2)
+0.0Hz
0.0A
+ 0.00bar
+ 3.00bar
1