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Control Mode Selection
Table 1.2 gives an overview of the A1000 control modes and their various features.
Table 1.2 Control Modes and their Features
Motor Type Induction Motors
Permanent Magnet Motors
<99>
Comments
Control Mode V/f V/f w/PG OLV CLV OLV/PM AOLV/PM CLV/PM –
Parameter Setting A1-02 = 0 A1-02 = 1 A1-02 = 2 A1-02 = 3 A1-02 = 5 A1-02 = 6 A1-02 = 7
Default Setting is
OLV control (A1-02
=2)
Basic Description V/f control
V/f control
using motor
speed feedback
Open Loop
Vector control
Closed Loop
Vector control
Open Loop
Vector control
for PM motors
Open Loop
Vector control
for IPM motors
Closed Loop
Vector control
for PM motors
–
Type of
Applications
Motor Type IM IM IM IM PM IPM PM –
Multi Motor YES N/A N/A N/A N/A N/A N/A –
Motor data
unknown
YES N/A N/A N/A N/A N/A N/A –
High Speed
Accuracy
N/A YES YES YES YES YES YES –
High Speed
Response
N/A N/A YES YES N/A YES YES –
Zero Speed
Control
N/A N/A N/A YES N/A YES YES –
Torque Control
Operation
N/A N/A N/A YES N/A YES YES –
Torque Limit
Operation
N/A N/A YES YES N/A N/A YES –
PG Option Card N/A
PG-B3 or
PG-X3
N/A
PG-B3 or
PG-X3
N/A N/A PG-X3 –
Control
Characteristics
Speed Control
Range
1:40 1:40 1:200 1:1500 1:20 1:100 1:1500
May fluctuate with
characteristics and
motor temperature.
Speed Accuracy ±2 to 3% ±0.03% ±0.2% ±0.02% ±0.2% ±0.2% ±0.02%
Speed deviation
when operating at
constant speed may
fluctuate with
characteristics and
motor temperature.
Speed Response 3 Hz (approx.) 3 Hz (approx.) 10 Hz 50 Hz 10 Hz 10 Hz 50 Hz
Max. frequency of a
speed reference
signal that the drive
can follow may
fluctuate with
characteristics and
motor temperature.
Starting Torque 150% at 3 Hz 150% at 3 Hz
200% at
0.3 Hz
200% at
0 r/min
100% at
5% speed
200% at
0 r/min
200% at
0 r/min
Starting torque may
fluctuate with
characteristics and
motor temperature.
Performance may
differ by capacity.
1.2 General Description
30
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
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