Delta C2000 Series User Manual page 283

Zero-speed Mode
0: Output waiting
Settings
1: Zero-speed operation
2: Fmin (Refer to Pr.01-07, 01-41)
When the frequency is less than Fmin (Pr.01-07 or Pr.01-41), it will operate by this parameter.
When it is set to 0, the AC motor drive will be in waiting mode without voltage output from terminals
U/V/W.
When setting 1, it will execute DC brake by Vmin(Pr.01-08 and Pr.01-42) in V/f, FOC Sensorless,
and SVC modes. It executes zero-speed operation in VFPG and FOCPG mode.
When it is set to 2, the AC motor drive will run by Fmin (Pr.01-07, Pr.01-41) and Vmin (Pr.01-08,
Pr.01-42) in V/F, VFPG, SVC, FOC Sensorless and FOCPG modes.
In V/F, VFPG, SVC and FOC Sensorless modes
fout
fmin
01-07
0Hz
In FOCPG mode, when Pr.01-34 is set to 2, it will act according Pr.01-34 setting.
fout
fmin
01-07
V/f Curve Selection
Settings 0: V/f curve determined by group 01
1: 1.5 power curve
2: Square curve
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.
Chapter 12 Description of Parameter Settings C2000 Series
01-34=0
stop output
0Hz
stop waiting for output
01-34=0
frequency command
nd rd
and 3 voltage frequency setting are invalid.
12-01-10
Factory Setting: 0
01-34=1
0Hz oper ation
(D C br ake)
01-34=1
frequency command
Factory Setting: 0
01-34=2
01-34=2