4Th Output Frequency Setting 2; 4Th Output Voltage Setting 2; Start Frequency - Delta Electronics AC Motor Drive VFD-VE Series User Manual

Chapter 4 Parameters|
Control
VF VFPG
mode
Settings
01-41

4th Output Frequency Setting 2

Control
VF VFPG
mode
Settings
01-42

4th Output Voltage Setting 2

Control
VF VFPG
mode
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.
For the V/f curve setting, it should be Pr.01-01≥ Pr.01-03≥ Pr.01-05≥ Pr.01-07. There is no
limit for the voltage setting, but a high voltage at the low frequency may cause motor damage,
overheat, 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 to Pr.02-14 is set to 14 and enabled or switch to the Δ-connection, the AC motor drive will
act as the 2nd V/f curve.
01-09

Start Frequency

Control
VF VFPG
mode
Settings
When start frequency is higher than the min. output frequency, drives' output will be from start
frequency to the setting frequency. Please refer to the following diagram for details.
Fcmd=frequency command,
Fstart=start frequency (Pr.01-09),
fstart=actual start frequency of drive,
Fmin=4th output frequency setting (Pr.01-07/Pr.01-41),
Flow=output frequency lower limit (Pr.01-11)
4-52
SVC
230V series 0.1 to 255.0V
460V series 0.1 to 510.0V
SVC FOCPG TQRPG
0.00~600.00Hz
SVC
230V series 0.1 to 255.0V
460V series 0.1 to 510.0V
SVC FOCPG
0.00~600.00Hz
Factory Setting: 0.0
Factory Setting: 0.0
Factory Setting: 0.00
Factory Setting: 0.0
Factory Setting: 0.0
Factory Setting: 0.50
Revision August 2008, 03VE, SW V2.04
Unit: 0.01
Unit: 0.1
Unit: 0.01