Parameter Default Description 1 2 3 4 5
Control ramp
t = XX [s]
40 Time in which the device decreases the motor power frequen-
cy from the minimum control frequency (Frequency min con-
trol) to the minimum motor frequency (Min motor frequency).
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 (Con-
trol 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 frequency; 2: Frequency 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
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
Alternance
ON/OFF
ON Enabling the alternation between units in COMBO and D.O.L.
The order of priority of operation is alternated based on the
previous start-up of each pump in order to obtain an almost
uniform wear of the pumps.
x x
Alternance period
t = XX [h]
0 Maximum difference in operating hours between multiple devi-
ces in the unit.
0 means 5 minutes.
x x
COMBO synchrony
ON/OFF
OFF Through this parameter it is possible to activate the synchro-
nous operation of the pumps in COMBO. Read the dedicated
chapter.
However, it is necessary to lower parameter Frequency min
controlaccordingly.
x x
Start delay AUX
t = XX [s]
00 Time delay with which the pumps in a group start up after
the variable speed pump has reached the maximum motor
frequency and the measured value has fallen below the differ-
ence Set value - Delta control.
x x
PI control
Direct/Reverse
Direct PI control mode:
• Direct: as the pump speed increases, the measured value
increases.
• Reverse: as the pump speed increases, the measured value
decreases.
x x
Periodic autorun
t = XX [h]
00 Periodic pump start-up after X hours of inactivity. The value 0
disables the function.
x x x x x
MIDA
35
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