Delta VFD-L Series User Manual

5
VFD-L Series
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5-11
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The parameter determines how the motor is stopped when the AC drive receives a
valid stop command.
1. Ramp: the AC drive decelerates the motor to Minimum Output Frequency (Pr.1-05) and
then stops according to the deceleration time set in Pr.1-10 or Pr.1-12.
2. Coast: the AC drive stops output instantly upon command, and the motor free runs until
it comes to a complete stop.
Hz
Freq.
Motor
Speed
Stops according
to deceleration
time
Time
Hz
Freq.
Motor
Speed
Free running
to stop
Time
Operation
command
ON
ON
OFF
OFF
Ramp
Coast
Note: The motor stop method is usually determined by the characteristics of the motor load
and frequency of stops.
2 - 03
P
WM Carrier Frequency Selections
F
actory Setting: d 10
Settings d 03 fc= 3KHz Unit: 1KHz
d 04 fc= 4KHz
d 05 fc= 5KHz
to
d 10 fc= 10KHz
This parameter can set the carrier frequency of PWM output.
Carrier
Frequency
Acoustic Noise
Electromagnetic
Noise, Leakage
Current
Heat
Dissipation
3KHz
10KHz
Significant
Minimal
Minimal
Significant
Minimal
Significant

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