Learning Advanced Features
252
Code
Description
Speed search for general acceleration:
If bit 1 is set to “1” and the inverter
operation command runs, acceleration starts with the speed search
operation. When the motor is rotating under load, a fault trip may occur if
the operation command is run for the inverter to provide voltage output.
The speed search function prevents such fault trips from occurring.
Initialization after a fault trip other than an LV trip:
If bit 2 is set to “1”
and PRT-08 (RST Restart)
is set to “1 (Yes)”, the speed search operation
automatically accelerates the motor to the operation frequency used before
the fault trip when the [STOP/RESET] key is pressed (or the terminal block
input is on) after a fault trip.
Automatic restart after an instantaneous power interruption:
If bit 3 is
set to “1”, and if a low voltage trip occurs due to a power interruption but
the power is restored before the internal power shuts down, the speed
search operation accelerates the motor back to its frequency reference
before the low voltage trip.
If an instantaneous power interruption occurs and the input power is
disconnected, the inverter generates a low voltage trip and blocks the
output. When the input power returns, the operation frequency before the
low voltage trip and the voltage is increased by the inverter’s inner PI
controller.
If the current increases above the value set at CON-72, the voltage stops
increasing and the frequency decreases (t1 zone). If the current decreases
below the value set at CON-72, the voltage increases again and the
frequency stops decelerating (t2 zone). When the normal frequency and
voltage are resumed, the speed search operation accelerates the motor
back to its frequency reference before the fault trip.
Содержание SV-iS7 Series
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Страница 22: ...About the Product 5 1 2 2 Interior and Exterior View IP 54 Model Types Less than 22 kW 200 400 V ...
Страница 114: ...Peripheral Devices 97 Group 2 ...
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Страница 116: ...Peripheral Devices 99 Group 4 ...
Страница 153: ...Using the Keypad 136 The Parameter Initialization option is displayed again when the initialization is complete ...
Страница 159: ...Basic Functions 142 Code Description V1 Quantizing ...
Страница 465: ...Safety Funtion STO Safe Torque Off 448 14 2 1 Safety Function Wiring Diagram ...