1.2 General Description
30 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
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 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 Open Loop Vector
Control.
Basic Description
V/f control
V/f control
usi
ng motor
speed
feedback
Open Loop
V
ector control
Closed Loop
Vector control
Open Loop
Vector control
for PM motors
Open Loop
V
ector control
for IPM
motors
Closed Loop
V
ector 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
1:20
1:100
1:1500
May fluctuate with characteristics and
motor temperature.
Enabled for 1:100 when n8-57 = 1 (high
frequency injection enabled).
Speed Accuracy 2 to 3% 0.03% 0.2% 0.02% 0.2% 0.2% 0.02%
Induction Motor: Speed deviation rate
between speed reference value and motor
speed (100% = rated speed, motor
temperature 25C10C) when operating
at normal status and when load is stable.
PM motor: Speed deviation when
operating at constant speed may fluctuate
with characteristics and motor temperature
(25C 10C).
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 min
-1
100% at
5% speed
100% at 5%
speed
200% at
0 min
-1
200% at
0 min
-1
May fluctuate with characteristics and
motor temperature.
Performance may differ by capacity.
200% at 0 min
-1
enabled when n8-57 = 1
(high frequency injection enabled).