5. Parameters
5-31
5.6 C-Parameter : H/W Functionality setup
5.6.1 V/f Setting
5.6.1.1 Setting V/f : C0.01
Parameter
No.
Name
Unit
Setting
range
Factory
Setting
Changeable
during
operation
C0.01
V/f pattern
-
0~15 15
X
• C0.01 can be set to one of the following:
- One of 15 preset patterns (settings 0~14)
- A user-programmable pattern (setting 15)
• C0.01 is not changed by initialization (set B1.01= ‘1010’ or ‘1111’).
However, if C0.01=15, C0.02~C0.08 are changed to the values
associated with the case “C0.01=1” by initialization.
• If C0.01=15, the arbitrary V/f pattern can be generated by properly
setting the values in C0.02~C0.08 as shown in Fig 5.14.
• Normally high starting torque is not necessary except the following
cases:
- Long wiring
- Large voltage drop when started
- AC reactor is connected to the input/output of the
inverter
- Running with a motor smaller than the maximum
applicable motor.
- Needs large starting torque (like as in elevator)
• When using preset V/F patterns, consider the rated voltage &
frequency of the motor and load characteristics as shown in the
following table.
5-32
MOSCON-E7 User’s Manual
• Setting
Setting
constant
Max. Frequency
Specification
Application
0 50Hz
1 60Hz
saturation
2
60Hz
50Hz saturation
3 72Hz
General-purpose
4 Square
decreased
5
50Hz
Cubic decreased
6 Square
decreased
7
60Hz
Cubic decreased
Fans/Pumps
Decreased
torque
8 Smaller
starting
torque
9
50Hz
Large starting torque
10 Smaller
starting
torque
11
60Hz
Larger starting torque
High start-up
torque
12 90Hz
13 120Hz
14 180Hz
Rated output
operation