33
ADVANCED PARAMETERS
Listed below the
ADVANCED PARAMETERS
for the configuration of the inverter
Param.
description
u.m. Default Min Max Step
ADV d 0.40
DIFFERENTIAL
PRESSURE
FOR RESTART
Sets the difference between the
selected pressure (SETPOINT)
and the effective restart pressure
bar
0,5
0,4
1,0
0,1
psi
6
6
15
1,5
MF 50
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
-
LF30
MINIMUM
OPERATION
FREQUENCY
Sets the minimum operating
frequency
Hz
30
25
40
1
HF 50
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
Td 10
STOP DELAY
FOR DRY
RUNNING
Sets the pump stop delay under
dry running conditions
CAUTION: high values of the stop
delay may damage the pump
sec
10
1
100
1
PF .50
MINIMUM
POWER
FACTOR
(only T/T
models)
Sets the minimum value for the
power factor below which the inverter
stops the pump.
By setting the minimum power factor
value, read the value of the motor
running with closed valves and
deducting 0.03 to it;
-
0.50
0.50 0.99 0.01
TPF 0
STOP DELAY
FOR POWER
FACTOR
(only T/T mod.)
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
TP10
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
TF 3
STOP DELAY
FOR NO FLOW
Sets the pump stop delay under
no flow conditions
sec
3
1
15
1
RF 4
INVERTER
REACTIVITY
Sets the inverter response speed
to pressure changes
The response value selected
depends on the characteristics of
the system
-
3
1
5
1
