General Description; Control Mode Details - YASKAWA Z1000 Technical Manual

1.2

General Description

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Control Mode Details

Table 1.1 gives an overview of the various features associated with the Z1000 Bypass.
Motor Type
Control Mode
Basic Description
Type of Applications
Motor data unknown
High Speed Accuracy
Speed Control Range
Control
Characteristics
Energy-Saving Control
Application-Specific
High Slip Braking
Kinetic Energy Buffering
Overexcitation Deceleration
Overvoltage Suppression
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
Table 1.1 Control Mode Features
Motor Type
Multi Motor
Speed Accuracy
Speed Response
Starting Torque
• Energy Saving Tuning
Auto-Tuning
• Line to line resistance
Speed Search
Induction Motors
V/f
V/f control
IM
YES
YES
–
1:40 May fluctuate with characteristics and motor temperature.
Speed deviation when operating at constant speed may
±2 to 3%
fluctuate with characteristics and motor temperature.
Max. frequency of a speed reference signal that the drive can
3 Hz (approx.) follow may fluctuate with characteristics and motor
temperature.
Starting torque may fluctuate with characteristics and motor
140% at 3 Hz 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
YES
it without stopping.
Saves energy by always operating the motor at its maximum
YES
efficiency.
Increases motor loss to allow for faster deceleration.
YES
Effectiveness may vary based on motor characteristics.
Decelerates the drive to allow it to ride through a momentary
YES
power loss and continue operation.
YES Provides fast deceleration without using a braking resistor.
Prevents overvoltage by increasing speed during
YES
regeneration.
1.2 General Description
Comments
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