Delta VFD-B Series User Manual

Chapter 5 Parameters|VFD-B-P Series
Revision April 2009, SW V1.00 5-29
 This parameter sets the Minimum Output Frequency of the AC motor drive.
01 - 06 Minimum Output Voltage (Vmin) Unit: 0.1
Settings 0.1 to 510.0V Factory Setting: 3.4
 This parameter sets the Minimum Output Voltage of the AC motor drive.
 The settings of Pr.01-01 to Pr.01-06 have to meet the condition of Pr.01-02 ≥ Pr.01-04 ≥ Pr.01-
06 and Pr.01-01 ≥ Pr.01-03 ≥ Pr.01-05.
 When it is vector control mode, the settings of Pr.01-03, Pr.01-04 and Pr.01-06 are invalid.
Pr.01-05 is still the minimum output frequency.
01 - 07 Output Frequency Upper Limit Unit: 1
Settings 1 to 120% Factory Setting: 100
 This parameter must be equal to or greater than the Output Frequency Lower Limit (Pr.01-08).
The Maximum Output Frequency (Pr.01-00) is regarded as 100%.
 Output Frequency Upper Limit value = (Pr.01-00 * Pr.01-07)/100.
1-05 1-03 1-01
1-06
1-04
1-02
1-00
1-07
1-08
V
/f Curve
Voltage
Frequency
Output Frequency
Lower Limit
Output Frequency
Upper Limit
The limit of
Output
Frequency
Mid-point
Freq.
Maximum
Output
Frequency
Maximum
Output
Voltage
Mid-point
Voltage
Minimum
Output
Voltage
Minimum
Output
Freq.
Maximum Voltage
Frequency
(Base Frequency)
01 - 08 Output Frequency Lower Limit Unit: 1
Settings 0 to 100% Factory Setting: 0
 The Output Frequency Lower Limit value = (Pr.01-00 * Pr.01-08) /100.
 The Upper/Lower Limits are to prevent operation errors and machine damage.
 If the Output Frequency Upper Limit is 50Hz and the Maximum Output Frequency is 60Hz, the
Output Frequency will be limited to 50Hz.

Delta VFD-B Series Specifications

General

Series	VFD-B
Cooling Method	Fan cooling
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Control Mode	V/F control, Sensorless Vector Control
Communication	RS-485
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overload, Overtemperature, Short Circuit
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Humidity	90% RH (non-condensing)
Altitude	1000m (Derating required above 1000m)