Nastec SUND, Инструкция по установке, использованию и техническому обслуживанию

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Parameter Default Description
Digital input2
N.O./N.C.
N.O. If N.O.(Normally Open) is selected, the device will continue to operate the motor if digital input 2 is
open. Conversely, it will stop the motor if digital input 2 is closed.
If N.C. (Normally Closed) is selected, the device will continue to operate the motor if digital input 2 is
closed. Conversely, it will stop the motor if digital input 2 is open.
Digital input 2 is also used to select set value 1 or set value 2 in the control mode Constant value 2
set or to select working frequency 1 or 2 in the control mode Fix speed 2 values.
In the presence of the flow switch, it is used for operation via flow switch.
Digital input3
N.O./N.C.
N.O. If N.O.(Normally Open) is selected, the device will continue to operate the motor if digital input 3 is
open. Conversely, it will stop the motor if digital input 3 is closed.
If N.C. (Normally Closed) is selected, the device will continue to operate the motor if digital input 3 is
closed. Conversely, it will stop the motor if digital input 3 is open.
Digital input 3 is also used to select sensor 1 or sensor 2 when the parameter AN1, AN2 function is
set to Selectable.
Digital input4
N.O./N.C.
N.O. If N.O.(Normally Open) is selected, the device will continue to operate the motor if digital input 4 is
open. Conversely, it will stop the motor if digital input 4 is closed.
If N.C.(Normally Closed) is selected, the device will continue to operate the motor if digital input 4 is
closed. Conversely, it will stop the motor if digital input 4 is open.
Digital input 4 is also used to select the main or auxiliary control mode in case they are different.
Digital input 4 also serves as alarm reset.
Dig. input 2/3 delay
t = XX [s]
1 Delay of digital inputs 2 and 3.
Digital inputs 1 and 4 have a fixed delay of 1 second.
By setting a value greater than 30 seconds, digital input 2 serves as the input for the flow switch.
Flow Measure
XXXXXXXXXX
None Flow measurement mode:
• None: the flow rate is not measured.
• Frequency proport.: the flow rate is calculated proportionally to the frequency of rotation of the
pump.
• AN2 4-20mA: the flow rate is read through analog input 2 (4-20 ma).
• AN3 pulse: The flow rate is read via analogue input 3 (0-10) with a pulse signal.
Rated Flow
XXX.X [m3/h]
1 If parameter Flow Measure is set to Frequency proport., the nominal flow rate corresponds to the
pump flow rate at nominal speed.
If parameter Flow Measure is set to AN2 4-20mA, the nominal flow rate corresponds to the full scale
of the flow meter.
Pulse
XXXX.X [l/pulse]
If parameter Flow Measure is set to AN3 pulse, it is necessary to specify how many liters correspond
to each pulse sent by the flow meter.
Min stop flow
XXX.X [m3/h]
0 If the measured flow remains below parameter Min stop flow for more than 60 seconds, the pump
will be stopped. The device will attempt to restart the pump every XX minutes based on the value
specified in parameter Restarts delay.
Full scale solarimeter
XXXX [W/m2]
0 The 4-20 mA solarimeter full scale connected to analog input 2. A value of 0 means that the
measurement is disabled.
Min stop irradiation
XXXX [W/m2]
0 If the measured irradiation remains below parameter Min stop irradiation for more than 60 seconds,
the pump will be stopped. The device will attempt to restart the pump every XX minutes based on the
value specified in parameter Restarts delay.
Min start irradiation
XXXX [W/m2]
0 In COMBO Solar operating mode with solar meter connected, it specifies the additional irradiation
value to the irradiation specified by the parameter Min stop irradiation necessary to start another
pump in sequence. It is advisable to set this parameter equal to the irradiation value necessary for
the operation of a pump in the group at maximum power increased by 10%.
Change password1
Press ENT
By pressing the ENT key it is possible to change the installer level password (level 1) (default 001).
9.9. Connectivity parameters
Parameter Default Description
MODBUS address
XXX
1 MODBUS address from 1 to 247
MODBUS baudrate
XXXXX
9600 MODBUS baudrate from 1200 bps to 57600 bps
SUND
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