Appendix A Specifications
VFD-EL-W
A-3
A3. General Specifications
Characteristics Descriptions
Control Characteristics
Control System
SPWM (Sinusoidal Pulse Width Modulation) control (V/F control, Vector
Control)
Frequency Setting Resolution
0.01 Hz
Output Frequency Resolution
0.01 Hz
Torque Characteristics
Includes the auto-torque/auto-slip compensation; starting torque can be
150% at 5.0 Hz
Overload Tolerance 150% of rated current for one minute
Skip Frequency Three zones, setting range 0.1–400 Hz
Accel/Decel Time 0.1–600 seconds (2 Independent settings for Accel./ Decel. time)
Stall Prevention Level Setting 20–250% of rated current
DC Brake
Operation frequency 0.1–400.0 Hz, output 0–100% rated current
Start time 0–60 seconds, stop time 0–60 seconds
V/F Pattern Adjustable V/F pattern
Operating Characteristics
Setting
Keypad Setting by
External Signal
Potentiometer-5 k / 0.5 W, 0–10 V
DC
, 4–20 mA, RS-485 interface; Multi-
function inputs 2 to 4 (7 steps, Jog, up/down)
Operation
Setting
Signal
Keypad Set by RUN and STOP
External Signal
Single-wire (default setting MI1) or Two-wire/Three-wire (MI1, MI2, MI3) by
setting parameters, JOG operation, RS-485 serial interface (Modbus).
Multi-function Input Signal
Multi-step selection 0–7, Jog, accel./decel. inhibit, two accel./decel.
switches, counter, external Base Block, ACI/AVI selections, drive reset,
UP/DOWN key settings, NPN/PNP input selection
Multi-function Output
Indication
AC drive operating, frequency reached, zero speed, Base Block, fault
indication, overheat alarm, emergency stop and status selections for input
terminals.
Analog Output Signal Output frequency/current
Operation Functions
AVR, accel./decel. S-Curve, over-voltage/over-current stall prevention, five
fault records, reverse inhibition, momentary power loss restart, DC brake,
auto-torque/slip compensation, auto-tuning, adjustable carrier frequency,
output fre
quency limits, parameter lock/reset, PID control, external counter,
Modbus communication, abnormality reset, abnormality restart, power-
saving, fan control, sleep/wake frequency, first/second frequency source
selections, first/second frequency source combination, NPN/PNP selection.
Protection Functions
Over-voltage, over-current, under-voltage, external fault, overload, ground
fault, overheating, electronic thermal, IGBT short circuit, PTC
Display Keypad
Six-key, seven-segment LED with four-digits, four status LEDs, master
frequency, output frequency, output current, custom units, parameter
values for setup and lock, faults, RUN, STOP, RESET, FWD/REV.
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