4.4 Basic Parameter Adjustments
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07) 145
Start-Up Programming &
Operation
4
■ Selecting a Preset V/f Pattern
Select one of the 15 presets (settings 0 through E) for the drive to automatically set
the parameters listed in the table below.
Note: The default setting for the V/f pattern is for a custom V/f pattern (E1-03 = F).
Table 4.5 V/f Patterns
No. Parameter Name No. Parameter Name
E1-04 Maximum Output Frequency (FMAX) E1-08 Mid Output Frequency Voltage (VC)
E1-05 Maximum Voltage (VMAX) E1-09 Minimum Output Frequency (FMIN)
E1-06 Base Frequency (FA) E1-10 Minimum Output Frequency Voltage (VMIN)
E1-07 Mid Output Frequency (FB)
Setting Specification Characteristic Application
0 50 Hz
Constant torque
For general purpose applications, torque
remains constant regardless of changes to
speed.
1 (F) 60 Hz
2 60 Hz (with 50 Hz base)
3 72 Hz (with 60 Hz base)
4 50 Hz, Heavy Duty 2
Reduced or
variable torque
For applications where torque changes with
the speed like fans, pumps, and others that
require reduced torque relative to the load.
5 50 Hz, Heavy Duty 1
6 50 Hz, Heavy Duty 1
7 50 Hz, Heavy Duty 2
8 50 Hz, mid starting torque
High starting
torque
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
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)
Constant output
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.
D 120 Hz (with 60 Hz base)
E 180 Hz (with 60 Hz base)
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