Nastec MIDA 203, Руководство по установке, использованию и техническому обслуживанию

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• Access manuals and additional technical documentation.
• Receive online help on parameters and alarms.
9.4. Initial display
When the device is switched on, the control firmware version (LCD = X.XX), the power firmware version (INV =
X.XX) and the hardware version (HW = X.XX) are communicated to the user.
Next, the initial view opens.
3.0 3.0
bar bar
1
2
5
6
A01 A01 W01 W01
7
8
3 4
1: Bluetooth on. Flashing during communication; 2: Motor running; 3: Motor stopped; 4: Stand-by; 5: Value read; 6:
Units of measurement; 7: Alarm; 8: Warning
Parameter Description
XX.X [bar] Measured pressure value.
XXX.X [Hz] Frequency with which the inverter is powering the motor.
XXX [VAC] Inverter power supply voltage. This appears only while the motor is in the OFF state. In the ON state,
the current absorbed by the motor is displayed instead of the supply voltage.
XX.X [A] Current absorbed by the motor.
X.XX [cosø] Cosine of the ø phase displacement angle between voltage and current. It is also called the motor
power factor.
XX.X [kW] Estimate of the active electrical power absorbed by the motor.
X [INV] Device address when COMBO functionality is enabled.
AXX Alarm XX.
WXX Warning XX.
The App allows monitoring other parameters and consult the alarm log.
9.5. FOC motor control
9.5.1. Introduction
The benefits provided by the FOC (Field Oriented Control) motor control implemented in the "FOC-ready" inverters
over a traditional control are as follows:
• Ideal control of the current at each operating point.
• Quick and accurate speed adjustment.
• Lower energy consumption.
• Reduction of torque fluctuations (vibrations) for smoother and more regular operation throughout the frequency
range and less system noise.
• Less mechanical stress on the motor, pump and hydraulic system.
The FOC control of "FOC-ready" devices can be used with:
• Three-phase asynchronous motors
• Permanent magnet three-phase synchronous motors
The control is "sensorless" and therefore does not require the use of any sensor.
9.5.2. FOC control calibration
To enable the device to perform the FOC check it is necessary:
1. Carry out all system wiring. Connect the load (pump) to the inverter using a cable of suitable length, and any
dV / dt or sine filter.
MIDA
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