9.7. Motor parameters
Parameter
Default
Description
Max motor frequency
f = XXX [Hz]
50
Maximum frequency intended to power the motor. Reducing the maximum motor frequency reduces
the maximum current consumption.
Min motor frequency
f = XXX [Hz]
30
Minimum motor frequency.
Ramp up time
t = XX [sec]
Motor start ramp from minimum frequency (Min motor frequency) to maximum frequency (Max motor
frequency).
Slower ramps cause less strain on the motor and pump and therefore promote longer life. On the
other hand, response times are longer.
Excessively fast start-up ramps may lead to an overload in the inverter.
Ramp down
t = XX [sec]
Motor stop ramp from maximum frequency (Max motor frequency) to minimum frequency (Min motor
frequency).
Slower ramps cause less strain on the motor and pump and therefore promote longer life. On the
other hand, response times are longer.
Excessively fast stop ramps may lead to an overvoltage in the inverter due to the regenerative effect.
Autorestart
ON/OFF
OFF
By selecting ON, when the mains power is restored after a power failure, the device will return to the
same state it was in before the power failure: this means that if the pump was working, it will start
working again
Change password2
Press ENT
By pressing the ENT key it is possible to change the advanced level password (level 2) (default 002).
9.8. IN / OUT parameters
Parameter
Default
Description
Unit
XXXXX
bar
Units of measurement [bar,%, ft, in, cm, m, K, F, C, gpm, l / min, m3 / h, atm, psi].
Full scale sensor
p = XXX.X [bar]
16
Full scale of the sensor.
Min value sensor
p = XXX.X [bar]
0
Minimum sensor value.
Offset input1
XX.X [%]
20%
Zero correction for analog input 1 (4-20 mA).
(20 mA x 20% = 4 mA).
Offset input2
XX.X [%]
20%
Zero correction for analog input 2 (4-20 mA).
(20 mA x 20% = 4 mA).
Offset input3
XX.X [%]
20%
Zero correction for analog input 3.
0-10 V : 10V x 0% = 0 V
Offset input4
XX.X [%]
0%
Zero correction for analog input 4.
0-10 V : 10V x 0% = 0 V
AN1, AN2 function
XXXXXXXX
Inde-
pendent
Operating logic of analog inputs AN1, AN2:
• Independent. The active sensor is relative to analog input 1, while the sensor connected to analog
input 2 serves as an auxiliary in case of failure of the sensor or of analog input 1.
• Selectable. The active sensor may be selected via digital input 3.
• Difference 1-2. The digital difference in absolute value is performed between the measurements of
analog input 1 and analog input 2.
• Higher value. The maximum value between the measurements of the two sensors is considered.
• Lower value. The minimum value between the measurements of the two sensors is considered.
Digital input1
N.O./N.C.
N.O.
If N.O.(Normally Open) is selected, the device will continue to operate the motor if digital input 1 is
open. Conversely, it will stop the motor if digital input 1 is closed.
If N.C. (Normally Closed) is selected, the device will continue to operate the motor if digital input 1 is
closed. Conversely, it will stop the motor if digital input 1 is open.
SUND
25
