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(1) Input voltage (Cn-01)
• Set AC Drive input voltage. (In units of 0.1V).
(2) V/f constant (Cn-02 to Cn-08)
• Set AC drive output frequency/voltage characteristics (V/f characteristics.)
(a) Changing V/f characteristics
Sn-02 = 0 to 3 : V/f characteristics are determined by set value. Settings of CN-02
to Cn-08 cannot be changed.
Sn-02 = 4 :
Any V/f characteristic can be obtained by the set values of constants
Cn-02 ~ Cn-08
(b) Voltage values (Cn-03, Cn-06, Cn-08) displayed on the LCD operator depend on the set value
of Sn-02 (V/f selection)
(c) Sn-02 = 4 :
The set value is displayed.
(d) When V/F characteristics are a straight line, the same value as Cn-07 is set in Cn-05.
The set value of Cn-06 is disregarded.
Notes:
1. The maximum output voltage is limited by the input voltage.
2. When the set values of Cn-02 to Cn-08 do not satisfy the conditionas stated above, a setting error occurs
and an Invalid V/F OPE10 alarm is displayed.
The set value is checked at power ON and switching from PRG mode to DRIVE mode.
F
MAX
.≥ F
A
> F
B
≥ F
Min.
(3) Motor rated current (Cn-09)
• Set motor rated current by the electronic thermal function in units of 0.1 A for motor
overload protection. The range of setting is 10% to 200% of AC drive rated current.
When the 1st digit of Sn-14 is set to 1, the electronic thermal function is disabled and the
motor is not protected from overheating due to overload.
(4)
DC injection braking starting frequency (Cn-10)
• Set a frequency for starting DC braking during deceleration to stop in units of 0.1 Hz.
When a set value is not greater than Cn-07 (minimum output frequency), DC braking is
started at the minimum output frequency.
2-13
PA 7300
PART II: OPERATION MANUAL
0 F
Min
. F
B
F
A
F
Max
.
(Cn-07) (Cn-05) (Cn-04) (Cn-02)
F
V
V
Max
.
(Cn-03)
V
C
(Cn-06)
V
Min
.
(Cn-08)
Содержание PA7300 Series
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