Delta C2000 Series User Manual page 285

Chapter 12 Description of Parameter Settings
fout
fmin
01-07
V/F Curve Selection
Settings
When setting to 0, refer to Pr.01-01~01-08 for motor 1 V/f curve. For motor 2, please refer to
Pr.01-35~01-42.
When setting to 1 or 2, 2
If motor load is variable torque load (torque is in direct proportion to speed, such as the load of
fan or pump), it can decrease input voltage to reduce flux loss and iron loss of the motor at low
speed with low load torque to raise the entire efficiency.
When setting higher power V/f curve, it is lower torque at low frequency and is not suitable for
rapid acceleration/deceleration. It is recommended Not to use this parameter for the rapid
acceleration/deceleration.
Optimal Acceleration/Deceleration Setting
Settings
Setting 0 Linear accel./decel.: it will accelerate/decelerate according to the setting of
Pr.01-12~01-19.
01-34=0
stop output
0Hz
stop waiting for output
0: V/f curve determined by group 01
th
1: 1.5 V/F curve
nd
2: 2 V/F curve
nd rd
and 3 voltage frequency setting are invalid.
0: Linear accel./decel.
1: Auto accel., linear decel.
2: Linear accel., auto decel.
3: Auto accel./decel. (auto calculate the accel./decel. time by actual load)
4: Stall prevention by auto accel./decel. (limited by 01-12 to 01-21)
01-34=1
0Hz
0Hz oper ation
(D C br ake)
12.1-01-10
01-34=2
Factory Setting: 0
Factory Setting: 0