Nastec SUND 50, Installation And Use Manual

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14
Parameter Default Description
Disable
Enabling or disabling digital input 1 manual reset.
Disable
Enabling or disabling digital input 2 manual reset.
3
Digital input IN2 delay.
Digital input IN1 has 1 second fix delay.
CONTROL PARAMETERS
Parameter Default Description
M
PP
T
Co
n
stan
t
val
u
e
Fi
x sp
e
e
d
Co
n
st.v
al
u
e
2
set
Fi
x sp
e
e
d
2
val
.
Exte
rn
al
sp
e
e
d
MPPT
Mode of control:

MPPT: pump speed is adjusted in order to obtain maximum power
available from PV panels.

Constant value: the inverter changes the pump speed to keep the
set value constant regardless water demand.

Fix speed: the inverter feeds the pump at set frequency, so the
pump speed is kept constant.

Const. value 2 set: the two values are selected by opening or closing
the digital input IN2.

Fix speed 2 val: the two valus are selected by opening or closing the
digital input IN2.

External speed: control motor frequency by using analogical input
AN4.
10
Maximum value allowed in the
system. If the readen value goes over
this value, an alarm occurs and the
pump is stopped. Pump is
automatically restarted if the readen
value goes below the maximum value
for a period of at least 5 seconds.
     
0
Minimum value allowed in the
system. If the readen value goes
lower than this value, an alarm occurs
and the pump is stopped. Pump is
automatically restarted if the readen
value goes higher than the minimum
value for a period of at least 5
seconds.
     
OFF
Enabling of set value changing by
analog input AN3.
 
Dig. input 1 manual reset
Enable / Disable
Dig. input 2 manual reset
Enable / Disable
Dig.In.2 delay
X [s]
Control mode

MPPT

Constant value

Fix speed

Const.value 2set

Fix speed 2 val.

External speed
Max alarm value
XXX.X [bar]
Min alarm value
XXX.X [bar]
Ext.set enabling
ON/OFF