Delta Electronics AC Motor Drive VFD-EL User Manual

Chapter 4 Parameters|
4-82 Revision August 2008, 2ELE, V1.02
08.17 Automatic Energy-saving
Factory Setting: 0
Settings 0 Energy-saving operation disabled
1 Energy-saving operation enabled
70%
100%
Output
Voltage
Output Frequency
During auto-energy saving
operation is the output
voltage lowered as much
as possible to keep the load.
The output voltage is maximally
lowered to 70% of the normal
output voltage
08.18 Automatic Voltage Regulation (AVR)
Factory Setting: 0
Settings 0 AVR function enabled
1 AVR function disabled
2 AVR function disabled for deceleration
3 AVR function disabled for stop
 The rated voltage of the motor is usually 230V/200VAC 50Hz/60Hz and the input voltage of
the AC motor drive may vary between 180V to 264 VAC 50Hz/60Hz. Therefore, when the AC
motor drive is used without AVR function, the output voltage will be the same as the input
voltage. When the motor runs at voltages exceeding the rated voltage with 12% - 20%, its
lifetime will be shorter and it can be damaged due to higher temperature, failing insulation and
unstable torque output.
 AVR function automatically regulates the AC motor drive output voltage to the Maximum
Output Voltage (Pr.01.02). For instance, if Pr.01.02 is set at 200 VAC and the input voltage is
at 200V to 264VAC, then the Maximum Output Voltage will automatically be reduced to a
maximum of 200VAC.
 When the motor ramps to stop, the deceleration time is longer. When setting this parameter to
2 with auto acceleration/deceleration, the deceleration will be quicker.

Delta Electronics AC Motor Drive VFD-EL Specifications

General

Input Frequency	50/60 Hz
Control Method	V/F control
IP Rating	IP20
Humidity	Less than 90% RH (non-condensing)
Output Voltage	0 to Input Voltage
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Protection Functions	Over voltage, Over current, Under voltage, Over temperature, Short circuit
Communication	RS-485 (Modbus)
Digital Output	1 (Relay output)
Analog Output	1 (0 to 10 VDC)
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C ~ +60°C
Altitude	1000m (Derating required above 1000m)
Input Voltage	1-phase 200 ~ 240VAC, 3-phase 200 ~ 240VAC, 3-phase 380 ~ 480VAC
Output Frequency	0.1 to 600 Hz
Power Range	0.2 kW ~ 3.7 kW
Digital Inputs	5 programmable digital inputs
Analog Input	2 (0-10V, 4-20mA)