38
ADVANCED PARAMETERS
Highlighted below,
the ADVANCED PARAMETERS
which must be set
for the
configuration of the inverter
Parameter
description
u.m. Default Min
Max
Step
d
d
0
0
.
.
4
4
DIFFERENTIAL
PRESSURE FOR
RESTART (bar)
Sets the difference between the
selected pressure (SETPOINT) and
the effective restart pressure
bar
0,4
0,4
1,0
0,1
psi
6
6
15
1,5
M
M
F
F
5
5
0
0
NOMINAL MOTOR
FREQUENCY
Sets the nominal frequency of the
motor
The set value MUST be the same as
the value indicated on the motor plate
Hz
50
50
60
-
L
L
F
F
3
3
0
0
MINIMUM
OPERATION
FREQUENCY
Sets the minimum operating
frequency
Hz
30
25
40
1
H
H
F
F
5
5
0
0
MAXIMUM
OPERATION
FREQUENCY
Sets the maximum operation
frequency.
CAUTION!! Increasing the
maximum frequency above the
nominal frequency may cause
significant motor overload.
Hz
MF
MF
-5
MF
+3
1
T
T
d
d
1
1
0
0
STOP DELAY FOR
DRY RUNNING
Sets the pump stop delay under dry
running conditions
sec
10
1
100
1
P
P
F
F
.
.
1
1
0
0
MINIMUM POWER
FACTOR
Sets the minimum value for the power
factor below which the inverter stops
the pump.
-
0.50
0.50 0.99 0.01
T
T
P
P
F
F
0
0
STOP DELAY FOR
POWER FACTOR
Sets the time delay before the drive
will perform the minimum power factor
alarm.
Setting the value to 0 (zero) disables
this feature.
sec
0
0
3
1
T
T
P
P
1
1
0
0
RESTART
INTERVAL FOR
DRY RUNNING
Sets the interval between two
successive automatic attempts to
restart following stops for "dry
running"
Setting the value to “0” excludes
attempts for automatic restarts
min
10
0
100
1
T
T
F
F
3
3
STOP DELAY FOR
NO FLOW
Sets the pump stop delay under no
flow conditions
sec
3
1
15
1
R
R
F
F
4
4
INVERTER
REACTIVITY
Sets the inverter response speed to
pressure changes
-
3
1
5
1
F
F
W
W
S
S
0
0
FLOW SENSOR
Sets the presence/absence of flow
sensors.
0 = flow sensor not present
1= flow sensor present;
the presence
of flow is indicated on the display
with an “underscore”
-
0
0
1
1
