YASKAWA A1000 Technical Manual

1.2 General Description
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 31
Receiving
1
Application-
Specific
Auto-Tuning
• Energy
Savin
g
Tuning
•Line to
l
ine
resistance
•Energy
Savin
g
Tuning
• Line to
l
ine
resistance
• Rotational
• Stationary
•Line to
lin
e
resistance
• Rotational
• Stationary
•Line to
li
ne
resistance
•ASR
•Inertia
• Stationary
• Stator
R
esistance
• Stationary
• Stator
Res
istance
• Stationary
•Stator
Re
sistance
•ASR
•Inertia
• Encoder
Of
fset
• Back EMF
Co
nstant
Automatically adjusts parameter settings
that concern electrical characteristics of the
motor.
Torque Limit N/A N/A YES YES N/A YES YES
Sets the maximum torque for the motor to
protect the load and connected machinery.
Torque Control N/A N/A N/A YES N/A N/A YES
Allows direct control of motor torque for
tension control and other such applications.
Droop Function N/A N/A N/A YES N/A N/A YES
Sets the slip for the load torque of the
motor. Used for motor load distribution.
Zero Servo
Control
N/A N/A N/A YES N/A N/A YES Locks the rotor position.
Speed Search YES YES YES – YES YES YES
Bi-directional speed detection of a coasting
motor to restart it without stopping.
Energy-Saving
Control
YES YES YES YES N/A
YES (IPM
motors only)
YES (IPM
motors only)
Saves energy by always operating the
motor at its maximum efficiency.
High Slip
Braking
YES YES N/A N/A N/A N/A N/A
Increases motor loss to allow for faster
deceleration than normal without the use of
a braking resistor. The effectiveness may
vary based on motor characteristics.
Feed Forward
Control
N/A N/A N/A YES N/A N/A YES
Improves speed accuracy when the load
changes by compensating effects of the
system inertia.
Kinetic Energy
Buffering
YES YES YES YES YES YES YES
Decelerates the drive to allow it to ride
through a momentary power loss and
continue operation.
Overexcitation
Deceleration
YES YES YES YES N/A N/A N/A
Provides fast deceleration without using a
braking resistor.
Inertia Tuning,
ASR Tuning
N/A N/A N/A YES N/A N/A YES
Provides automatic Speed Control and
Feed Forward function tuning.
Overvoltage
Suppression
YES YES YES YES YES YES YES
Prevents overvoltage by increasing speed
during regeneration. Never use this
function with hoist or crane applications.
High Frequency
Injection
N/A N/A N/A N/A N/A
YES (IPM
mo
tor)
N/A
Greatly increases the speed control range
of an IPM motor.
Motor Type Induction Motors Permanent Magnet Motors Comments

YASKAWA A1000 Specifications

General

Type	AC Drive
Series	A1000
Input Voltage	200-240V, 380-480V
Frequency Range	0-400 Hz
Horsepower Range	0.5 to 1000 HP
Power Range	0.4 to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Braking	Dynamic Braking
Communication	Modbus
Safety	Safe Torque Off (STO)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Operating Temperature	-10 to +50°C
Storage Temperature	-20 to 60°C
Humidity	5 to 95% RH (non-condensing)
Enclosure	IP20