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Programming
D-60
AC890PX AC Drive
Functional Description
The flycatching function enables the drive to be restarted smoothly into a spinning motor. It applies small search voltages to
the motor whilst ramping the Drive frequency from maximum speed to zero. When the motor load goes from motoring to
regenerating, the speed search has succeeded and is terminated. If the search frequency falls below the minimum search speed,
the speed search has failed and the Drive will ramp to the speed setpoint from zero.
The flycatching sequence can be triggered by different starting conditions:
ALWAYS:
All starts (after controlled or uncontrolled stop, or after a power-up)
TRIP or POWER-UP:
After uncontrolled stop, i.e. trip or coast, or after a power-up
TRIP:
After uncontrolled stop, i.e. trip or coast
The type of speed sequence may be Bi-directional or Unidirectional:
Bi-directional
Initially, the search is performed in the direction of the speed setpoint. If the drive fails to identify the motor speed in this
direction, a second speed search is performed in the reverse direction.
Unidirectional
The search is performed only in the direction of the speed setpoint.
Содержание AC890PX Series
Страница 17: ...2 5 Product Overview AC890PX AC Drive 890PX bottom wire entry ...
Страница 25: ...3 4 Installing the Drive AC890PX AC Drive Outline Drawing of AC890PX 132kW 400kW HC471581 page 2 of 2 ...
Страница 144: ...The Keypad 7 9 AC890PX AC Drive The Menu System Map ...
Страница 145: ...7 10 The Keypad AC890PX AC Drive The Menu System Map continued ...
Страница 159: ...7 24 The Keypad AC890PX AC Drive Assembly Procedure Mounting Dimensions for the Remote Mounted 6901 Keypad ...
Страница 250: ...Programming D 10 AC890PX AC Drive VALUE INPUT BREAK VALUE INPUT LOSS LEVEL BREAK ENABLE BREAK TYPE UNPROCESSED ...
Страница 328: ...Programming D 88 AC890PX AC Drive Functional Description ...
Страница 386: ...Programming D 146 AC890PX AC Drive Setpoint Drive Frequency Frequency 1 Frequency 2 ...
Страница 391: ...D 151 Programming AC890PX AC Drive Speed Rated Speed No Load Speed synchronous speed Rated Torque Torque ...