User`s manual

51
V/f Control Chapter 5-2
5-2 V/f Control
Setting the V/f Patterns (n09 to n15)
• Set the V/f pattern so that the motor output torque is adjusted to the
required load torque.
• The J7AZ incorporates an automatic torque boost function. Therefore, a
maximum of 150% torque can be output at 3 Hz without changing the
default settings. Check the system in trial operation and leave the default
settings as they are if no torque characteristic changes are required.
Note 1. Values will be set in 0.1-Hz increments if the frequency is less than 100 Hz
and 1-Hz increments if the frequency is 100 Hz or greater.
n09 Maximum Frequency (FMAX) Changes during
operation
No
Setting
range
50.0 to 400 Hz Unit of
setting
0.1 Hz
(see note 1)
Default setting 60.0
n10 Maximum Voltage (VMAX) Changes during
operation
No
Setting
range
1 to 255 (V)
(see note 2)
Unit of
setting
1 V Default setting 200
(see note 2)
n11 Maximum Voltage Frequency (FA) Changes during
operation
No
Setting
range
0.2 to 400 (Hz) Unit of
setting
0.1 Hz
(see note 1)
Default setting 60.0
n12 Middle Output Frequency (FB) Changes during
operation
No
Setting
range
0.1 to 399 (Hz) Unit of
setting
0.1 Hz
(see note 1)
Default setting 1.5
n13 Middle Output Frequency Voltage (VC) Changes during
operation
No
Setting
range
1 to 255 (V) (see note 2) Unit of
setting
1 V Default setting 12
(see note 2)
n14 Minimum Output Frequency (FMIN) Changes during
operation
No
Setting
range
0.1 to 10.0 (Hz) Unit of
setting
0,1 Hz Default setting 1.5
n15 Minimum Output Frequency Voltage (VMIN) Changes during
operation
No
Setting
range
1 to 50 (V) (see note 2) Unit of
setting
1 V Default setting 12
(see note 2)