Delta C2000 Series User Manual page 276

Min. Output Voltage of Motor 2
Settings
V/f curve setting is usually set by the motor's allowable loading characteristics. Pay special attention
to the motor's heat dissipation, dynamic balance, and bearing lubricity, if the loading characteristics
exceed the loading limit of the motor.
There is no limit for the voltage setting, but a high voltage at low frequency may cause motor
damage, overheat, and stall prevention or over-current protection. Therefore, please use the low
voltage at the low frequency to prevent motor damage.
Pr.01-35 to Pr.01-42 is the V/f curve for the motor 2. When multi-function input terminals
Pr.02-01~02-08 and Pr.02-26 ~Pr.02-31 are set to 14 and enabled, the AC motor drive will act as
the 2nd V/f curve.
The V/f curve for the motor 1 is shown as follows. The V/f curve for the motor 2 can be deduced
from it.
1s t Output
Voltage Setting
2nd Output
Voltage Setting
3r d Output
Voltage Setting
4th Output
Voltage Setting
Common settings of V/f curve:
(1) General purpose
Motor spec. 60Hz
V
220
10
1.5
230V series: 0.0~240.0V
460V series: 0.0~480.0V
Vol tage
01-11 Output F requency Low er Limit
01-02
F requenc y output
ranges limitation
01-04
01-06
01-08
01-07 01-09 01-05
4th F req. Start F req.
3rd Fr eq.
Pr. Setting
01-00 60.0
60.0
01-01
01-02
220.0
01-03
1.50
01-05
01-04
10.0
01-06
F
1.50
01-07
60.0
01-08 10.0
Chapter 12 Description of Parameter Settings C2000 Series
Output F requency
01-10 U pper Limi t
01-03 01-01
2nd F req. 1st F req.
V/f Curve
Motor spec. 50Hz
V
220
10
1.3
12-01-3
Factory Setting: 0.0/0.0
R egul ar V /f Cur ve
Special V/f C urve
F requenc y
01-00
Maximum Output
F requenc y
Setting
Pr.
01-00 50.0
50.0
01-01
01-02
220.0
01-03
1.30
01-05
01-04
10.0
01-06
F
1.30
01-07
50.0
01-08 10.0