WEG CFW-11 Series User Manual

General Instructions
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CFW-11 | 2-3
PTC: it is a resistor, whose resistance value in ohms increases proportionally to the temperature increase, being
used as temperature sensor in motors.
NTC: it is a resistor, whose resistance value in ohms decreases proportionally to the temperature increase, being
used as temperature sensor in power modules.
HMI: Human-Machine Interface; it is the device that allows the control of the motor, the visualization and the
modification of the inverter parameters; it's also known as keypad. The CFW-11 HMI presents keys for
commanding the motor, navigation keys and a graphic LCD display.
FLASH Memory: it is the nonvolatile memory that can be electrically written and erased.
RAM Memory: Random Access Memory (volatile).
USB: Universal Serial Bus; it's a serial bus standard that allows devices to be connected using the Plug and
Play concept.
General Enable: when activated, it accelerates the motor via acceleration ramp. When deactivated, this
function immediately blocks the PWM pulses. The general enable function can be controlled through a digital
input programmed for this function or via serial communication.
Run/Stop: inverter function that when activated (Run) accelerates the motor with the acceleration ramp until
reaching the speed reference, and when deactivated (Stop) decelerates the motor with the deceleration ramp
down to stop. It can be commanded through a digital input programmed for that function or via serial
communication. The HMI keys
(Run) and (Stop) work in a similar manner.
STO: Safe Torque Off; functional safety function available as an option in CFW-11 inverter series. When STO
function is enabled the inverter guarantees that there is no movement of the motor shaft. It's also called safety
stop function in CFW-11 documentation.
PLC: Programmable Logic Controller.
TBD: value to be defined.
ac: alternated current.
dc: direct current.
Amp, A: ampere.
°C: Celsius degree.
CFM: Cubic Feet per Minute; unit of flow.
cm: centimeter.
°F: Fahrenheit degree.
Hz: hertz.

WEG CFW-11 Series Specifications

General

Output Voltage	0 to Input Voltage
Communication	Modbus RTU, Profibus DP, Ethernet/IP, CANopen
Protection	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Humidity	5% to 95% (non-condensing)
Enclosure Rating	IP20
Input Voltage	200-240V AC, 380-480V AC, 500-600V AC
Storage Temperature	-25 to 65 °C (-13 to 149 °F)