en – Original instructions
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P16. Motor Speed
It shows the actual motor rotational speed, expressed in revolutions for minute.
P17. Software version
It shows the Control Board software version.
7.5.2 Settings Parameters
P20. Password [0÷999]
The user can enter here the system password, which gives access to all system parameters: this
value is compared with the one stored in P22.
When a correct password is entered, the system remains unlocked for 10 minutes, so that all the
parameters are made accessible.
In case the password entered is not matching the value stored in P22, only the parameters up to
P20 remain accessible.
P21. Jog mode [P27÷ P26]
When the user accesses to this parameter, it deactivates the internal controller of the drive and
forces the actual Control Mode to ACT for all the time this parameter is in use: motor starts and
the value of P21 becomes the set-point of ACT.
It can be changed just selecting a new value on P21 (in the interval between P27 and P26), not
confirming it (otherwise the user exits from this temporary control).
P22. Set password [1÷999]
Set the system password (default value 66), to which the password entered in P20 PASSWORD
has to correspond; default setting is 066 (
066
).
P23. Lock Function [OFF, ON]
By using this parameter, the user can lock or unlock parameter settings in the main menu; default
setting is OFF, so that all parameters are accessible.
In case the user sets P23=ON, no parameter can be changed without inputting the system
password in P20.
7.5.3 Drive Configuration Parameters
P25. Control mode [0÷2]
It sets the Control Mode: ACT=0, CPP=1 and PPP=2.
•
(ACT)
Actuator
mode
ACT
→
ACT
It is the control mode with which a single pump maintains a fixed speed at any flow demand.
ACT will always try to minimize the error between the speed set-point and the actual rotational
speed of the motor.
•
(CPP)
Costant
Pressure
PI
CPP
→
CPP
It is the default control mode, with which the pump maintains a constant pressure at any flow
demand.
It is not necessary the adoption (on the hydraulic plant) of an absolute pressure sensor. The
control algorithm will work sensorless. Anyway an external pressure sensor can be used
(inputs 9 and 10, par. 5.4, configured by P40) as alternative: CPP will always try to minimize
the error between the pressure set-point and the feedback pressure signal.
•
(PPP) Proportional Pressure PI
PPP
→
PPP
It is the control mode, with which the pump maintains a proportional pressure at any flow
demand. The pressure increases as the flow increases.
The control algorithm will work sensorless. Anyway an external pressure sensor can be used
(inputs 9 and 10, par. 5.4, configured by P40) as alternative: CPP will always try to minimize
the error between the pressure set-point and the feedback pressure signal.
