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en – Original instructions
6.5.2 Settings Parameters
No.
P20
P21
P22
P23
6.5.3 Drive Configuration Parameters
No.
P25
P26
P27
*
Depending on the type of pump used
32
Parameter
Description
Password
The user can enter here the system password, which gives access to all system parameters:
entering
this value is compared with the one stored in P22.
[0÷999]
When a correct password is entered, the system remains unlocked for 10 minutes.
Jog mode
It deactivates the internal controller of the unit and forces the actual Control Mode (ACT):
*
[MIN÷MAX
]
the motor starts and the value of P21 becomes the temporary ACT setpoint. It can be
changed by just entering a new value on P21 without confirming it; otherwise, it causes
immediate exit from temporary control.
System
This is the system password, and must be the same as the password entered in P20.
password
Default: 66.
[1÷999]
Lock Function
By using this function, the user can lock or unlock parameter setting in the main menu.
[OFF, ON]
When ON, enter the P20 password to change the parameters.
Default: ON.
Parameter
Unit of
measurement
Control
mode [0-2]
Max RPM set
rpmx10
[ACT
*
set÷Max
]
Min RPM set
rpmx10
*
[Min
÷ACT
set]
Description
This parameter sets the Control Mode: ACT=0, CPP=1 e PPP=2
ACT: Actuator mode.
ACT
ACT
A single pump maintains a fixed speed at any flow rate. ACT will always try
to minimize the difference between the speed setpoint and the actual
rotational speed of the motor.
CCP: PI constant pressure.
CPP
CPP
The pump maintains a constant pressure delta (difference between delivery
and suction pressure) irrespective of the flow rate.
No absolute pressure sensor is required. The control algorithm will work in
sensorless mode. In any case, as an alternative it will be possible to use an
external pressure sensor (for the connections see par. 4.3.3, configured
from P40): CPP will always try to reduce to the minimum the error between
the pressure setpoint and the pressure feedback signal.
PPP: PI proportional pressure.
PPP
PPP
This is a control mode during which the pump keeps a proportional
pressure delta (difference between delivery and suction pressure)
irrespective of the flow needed. The pressure increases with the increase of
the flow. The control algorithm will work in sensorless mode. In any case, as
an alternative it will be possible to use an external pressure sensor (for the
connections see par. 4.3.3, configured from P40): PPP will always try to
reduce to the minimum the error between the pressure setpoint and the
pressure feedback signal.
Maximum pump speed setup.
Minimum pump speed setup.
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