
25
Delta P stop: this parameter sets the positive pressure delta compared to Pmax for immediate
shutdown of the pump. During normal operation, when the valves close, the pump stops after a
time set in the parameter "stop delay". In any case, if the system pressure exceeds the Pmax value
of a delta greater than that set in this parameter, the pump will stop immediately to avoid
overpressure which may damage the system.
Unit of measurement: select the unit of measurement in BAR or PSI
Imax: this parameter enables entry of the maximum current absorbed by the electric pump in
routine conditions, to enable shut-down of the motor in the event of excessive absorption. The
motor is also shut down if the current read during operation is below 0.5 A following interruption
of the connection between the motor and Sirio. The trip time of the current overload safety device
is inversely proportional to the entity of the overload in progress; therefore a slight overload will
lead to a more delayed trip time while a more significant overload will accelerate the trip time. On activation of the device, if
the Imax parameter is set at 0.5 A (factory setting), the display automatically shows the settings page of the maximum current
and no action is permitted until the absorption limit value is set.
Rotation direction (only for three-phase pump version): this screen enables the user to invert
the direction of rotation of the electric pump without modification to the electric motor wiring. To
modify the direction of rotation of the motor, use buttons "+" and "-"; the direction indicated by
the arrow has a purely indicative value and does not reflect the actual sense of rotation which must
be verified by the installer.
ADVANCED PARAMETERS:
The advanced parameters are accessible only to the technical assistance service. For access to these parameters, it is necessary
to contact the re-seller, a technical assistance centre or the manufacturer.
The following table lists the advanced parameters for reference when technical assistance is required.
REF. PARAMETER DESCRIPTION
1.2
Minimum frequency
Minimum motor start-up frequency
1.3
Stop frequency
Motor shutdown frequency
1.4
Nominal motor frequency
Maximum nominal motor frequency
1.5
Switching frequency
PWM Switching frequency
1.6
Frequency correction
Maximum frequency correction
1.7
Soft-start
Soft-start activation/deactivation
2.0
Flow switch activation
Flow switch activation or deactivation
2.1
Command source
Source of manual or automatic command
2.2
Auxiliary contact function
Selection of auxiliary contact function
2.3
I/O board input function
Function of I/O auxiliary board input contact
2.4
I/O board output function
Function of I/O auxiliary board output contact
2.5
Delay on stop
Delay on shutdown after closure of utilities
2.6
Autoreset interval
Time interval between autoreset attempts
2.7
No. autoreset tests
Number of autoreset attempts
2.8
Total automatic reset
Enabling of overall reset of all alarms
3.0 Pressure calibration 0.0 Bar To carry out calibration of the pressure sensor at 0 Bar
3.1 Pressure calibration 5.0 Bar To carry out calibration of the pressure sensor at 5 Bar
3.2 Flow sensor calibration To carry out calibration of the flow sensor
3.3 Pressure test Current pressure test signal
3.4 Flow switch test Flow switch test signal
3.5 Software Release Release of software
3.6 Power supply timing Inverter power supply timer
3.7 Pump timing Electric pump operational timer
3.8 Last error Last error occurred log
3.9 Start-up Pump start-up counter
4.0 Vboost Voltage boost at 0Hz
4.1 Dry run Time delay before activation of the protection due to no water
4.2 Protection starts per hour Activation or deactivation of the control on the number of start-ups per hour
(leak checks)
4.3 Anti-blockage protection Activation or deactivation of a function that automatically starts up the pump
after 24 hours of disuse
4.4 Dead time PWM Dead time PWM setting
4.5 Ki PID controller integral constant
4.6 Kp PID controller proportional constant
4.7 Boost time Boost time at maximum frequency with soft start disabled