Control Mode Details - YASKAWA P1000 Technical Manual

1.2 General Description
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Control Mode Details

Table 1.2 gives an overview of the various P1000 control mode features.
Basic Description
Type of Applications
Control Characteristics
Application-Specific
Application-Specific
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Table 1.2 Control Mode Details
Motor Type
Control Mode
Motor Type
Multi Motor
Motor data unknown
Speed Control Range
Speed Accuracy
Speed Response
Starting Torque
Auto-Tuning
Speed Search
Energy-Saving Control
High Slip Braking
Kinetic Energy Buffering
Over-
excitation
Deceleration
Overvoltage Suppression
Induction Motors
V/f
V/f control
IM
YES
YES
1:40
±2 to 3%
3 Hz (approx.)
150% at 3 Hz
• Energy Saving Tuning
• Line to line resistance
YES
YES
YES
YES
YES
YES
YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual
Comments
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–
–
–
–
May fluctuate with characteristics and motor
temperature.
Speed deviation when operating at constant
speed may fluctuate with characteristics and
motor temperature.
Max. frequency of a speed reference signal
that the drive can follow may fluctuate with
characteristics and motor temperature.
Starting torque may fluctuate with
characteristics and motor temperature.
Performance may differ by capacity.
Automatically adjusts parameter settings
that concern electrical characteristics of the
motor.
Bi-directional speed detection of a coasting
motor to restart it without stopping.
Saves energy by always operating the motor
at its maximum efficiency.
Increases motor loss to allow for faster
deceleration than normal without a braking
resistor. Effectiveness may vary based on
motor characteristics.
Decelerates the drive to allow it to ride
through a momentary power loss and
continue operation.
Provides fast deceleration without using a
braking resistor.
Prevents overvoltage by increasing speed
during regeneration.