YASKAWA V1000 Series Installation & Start-Up Manual page 145

Selecting a Preset V/f Pattern
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Select one of the 15 presets (settings 0 through E) for the drive to automatically set
the parameters listed in the table below.
No. Parameter Name
E1-04 Maximum Output Frequency (FMAX)
E1-05 Maximum Voltage (VMAX)
E1-06 Base Frequency (FA)
E1-07 Mid Output Frequency (FB)
Note: The default setting for the V/f pattern is for a custom V/f pattern (E1-03 = F).
Setting Specification
0 50 Hz
1 (F) 60 Hz
2 60 Hz (with 50 Hz base)
3 72 Hz (with 60 Hz base)
4 50 Hz, Heavy Duty 2
5 50 Hz, Heavy Duty 1
6 50 Hz, Heavy Duty 1
7 50 Hz, Heavy Duty 2
8 50 Hz, mid starting torque
9 50 Hz, high starting torque
A 60 Hz, mid starting torque
B 60 Hz, high starting torque
C 90 Hz (with 60 Hz base)
D 120 Hz (with 60 Hz base)
E 180 Hz (with 60 Hz base)
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
4.4 Basic Parameter Adjustments
No.
E1-08
E1-09
E1-10
Table 4.5 V/f Patterns
Characteristic
Constant torque
Reduced or
variable torque
High starting
torque
Constant output
Parameter Name
Mid Output Frequency Voltage (VC)
Minimum Output Frequency (FMIN)
Minimum Output Frequency Voltage (VMIN)
Application
For general purpose applications, torque
remains constant regardless of changes to
speed.
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 in length
Large amount of starting torque is required
(hoist-type applications, etc.)
AC reactor is installed
When the motor exceeds the largest motor
recommended for that drive used
When operating at speeds greater than 60 Hz
when the motor requires constant voltage.
Above 60 Hz the motor is operated in the
constant power range.
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