Delta VFD-L Series User Manual

VFD-L Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-4
Group 1: Basic Parameters
1 – 00
M
aximum Output Frequency (Fo. max)
F
actory Setting: d 60.0
Settings d 50.0 to d 400 Hz Unit: 0.1Hz

This parameter determines the AC drive’s Maximum Output Frequency. All the AC
drive analog inputs (0 to +10V, 4 to 20mA) are scaled to correspond to the output
frequency range.
1 - 01
M
aximum Voltage Frequency
F
actory Setting: d 60.0
Settings d 10.0 to d 400Hz Unit: 0.1Hz

This value should be set according to rated frequency of the motor as indicated on the
motor nameplate. Maximum Voltage Frequency determines the volts per hertz ratio.
For example, if the drive is rated for 460 VAC output and the Maximum Voltage
Frequency is set to 60Hz, the drive will maintain a constant ratio of 7.66 v/Hz. The
setting value must be greater than or equal to the middle freq. setting (Pr.1-03).
1 - 02
M
ax. Output Voltage (Vmax)
F
actory Setting: d 220
Settings d 2.0 to d 255V Unit: 0.1V

This parameter determines the Maximum Output Voltage of the AC drive. The
Maximum Output Voltage setting must be smaller than or equal to the rated voltage of
the motor as indicated on the motor nameplate. The setting value must be greater
than or equal to the Mid-Point Voltage (Pr.1-04).
1 - 03
M
id-Point Frequency (Fmid) Factory Setting: d 1.0
Settings d 1.0 to d 400Hz Unit: 0.1Hz

This parameter sets the Mid-Point Frequency of V/F curve. With this setting, the V/F ratio
between Minimum Frequency and Mid-Point frequency can be determined. This
parameter must be greater than or equal to Minimum Output Frequency (Pr.1-05) and
equal to or less than Maximum Voltage Frequency (Pr.1-01).

Delta VFD-L Series Specifications

General

Control Method	V/F Control
Output Voltage	0 to Input Voltage
Cooling Method	Fan Cooling
Enclosure Rating	IP20
Overload Capacity	150% for 60 seconds
Protection	Over-voltage, Over-current, Overheat, Under-voltage, Short circuit
Braking Unit	Built-in
Operating Temperature	-10°C to 50°C (14°F to 122°F)
Digital Inputs	5 programmable digital inputs
Analog Input	0-10V, 4-20mA
Communication Interface	RS-485 (Modbus)
Storage Temperature	-20°C to 60°C (-4°F to 140°F)
Humidity	90% RH, non-condensing
Altitude	Up to 1000m without derating
Input Voltage	200-240V, 380-480V