Parameter Default Description 1 2 3 4 5
Set value 2
p = XXX.X [bar]
3 Value that you want to keep constant. x
Compensat. set 2
p = XX.X [bar]
0 Compensation at the maximum frequency. The sign can be
reversed via the green key.
x
Value set update
t = XX [s]
5 Time interval for updating the set value according to the com-
pensation.
x x
Operating freq.
f = XXX [Hz]
=
Max mo-
tor freq.
Frequency used by the device to power the motor. x x
Operating freq.2
f = XXX [Hz]
=
Max mo-
tor freq.
Frequency used by the device to power the motor. x
Freq.min.control
fmin = XXX [Hz]
50 Minimum frequency below which the pump must try to stop
following the control ramp (Control ramp).
x x
Stop delay
t = XX [s]
5 Delay during which an attempt is made to stop the pump below
the minimum control frequency (Freq.min.control ).
x x
Control ramp
t = XX [s]
40 Time in which the device decreases the motor power frequen-
cy from the minimum control frequency (Freq.min.control ) to
the minimum motor frequency ( Min motor freq.). If during this
time the measured value falls below Set value - Delta control,
the device restarts the motor. If not, the device will stop the
motor completely following the control ramp (Control ramp).
x x
Delta start
p = XXX.X [bar]
0.5 This parameter communicates by how much the measured
value must fall from the set value for the previously stopped
pump to be restarted.
x x
Delta control
p = XXX.X [bar]
0.1 This parameter communicates by how much the measured
value must fall in relation to the set value so that the pump,
during shutdown in control ramp, is restarted.
1: Min motor freq.; 2: Freq.min.control ; 3: Delta control; 4: Set
value ; 5: Stop delay; 6: Control ramp
x x
Delta stop
p = XX.X [bar]
0.5 This parameter represents the increment of the measured val-
ue with respect to the set value that must be exceeded so that
a forced shutdown of the pump according to the stop ramp can
occur.
x x
Ki
XXX
Integral coefficient used in constant value adjustment. x x
Kp
XXX
Proportional coefficient used in constant value adjustment. x x
Pump DOL 1
ON/OFF
OFF Enabling or disabling auxiliary pump 1 at fixed speed (D.O.L.) x x
Pump DOL 2
ON/OFF
OFF Enabling or disabling auxiliary pump 2 at fixed speed (D.O.L.) x x
COMBO
ON/OFF
OFF Enable the function COMBO for the combined operation of
several pumps in parallel. Read the dedicated chapter.
x x
Address
XX
01 Device address when in COMBO mode:
• 0: master
• 01 to 07: slave
x x
VASCO - VAriable Speed COntroller
39
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