YASKAWA CIMR-JA Series Installation & Start-Up Manual page 101

Setting
Specification
Example
0 50 Hz
60 Hz
1
(default setting)
60 Hz
2
(with 50 Hz base)
72 Hz
3
(with 60 Hz base)
50 Hz
4
Heavy Duty 3
50 Hz
5
Heavy Duty 2
60 Hz
6
Heavy Duty 3
60 Hz
7
Heavy Duty 2
50 Hz
8
mid starting torque
50 Hz
9
high starting torque
60 Hz
A
mid starting torque
60 Hz
B
high starting torque
90 Hz
C
(with 60 Hz base)
120 Hz
D
(with 60 Hz base)
180 Hz
E
(with 60 Hz base)
n V/f Pattern Characteristics
These graphs apply to 200 V class drives; double the values for 400 V class drives.
• Constant Torque Characteristics
YASKAWA ELECTRIC TOEP C710606 25B YASKAWA AC Drive J1000 Installation & Start-Up Manual
Table 4.6 V/f Pattern Examples
Characteristic
Constant torque
Reduced or
variable torque
High starting
torque
Constant output
4.5 Basic Operation
Application
For general purpose applications, torque
remains constant regardless of speed changes.
For applications where torque changes with the
speed like fans, pumps, and others that require
reduced torque relative to the load.
High starting should be selected only when:
• Wiring between the drive and motor
exceeds 150 m
• Large amount of starting torque is required
• AC reactor is installed
• Motor exceeds the largest motor
recommended for that drive used
When operating at speeds greater than 60 Hz
motor requires constant voltage.
When operating at speeds greater than 60 Hz
motor operates in constant power range.
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