WEG CFW700, Programming And Troubleshooting Manual

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General Information
2-2 | CFW700
PE: “Protective Earth”.
RFI Filter: “Radio Frequency Interference Filter”. It is a filter that avoids interference in the radiofrequency range.
PWM: “Pulse Width Modulation”. It is a pulsing voltage that supplies the motor.
Switching Frequency: It is the inverter bridge IGBTs commutation frequency, specified normally in kHz.
General Enable: When activated, it accelerates the motor with the acceleration ramp provided Run/Stop=Run.
When deactivated, the PWM pulses are immediately blocked. It can be commanded through digital input
programmed for that function or via serial.
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 digital input programmed for that function or via serial. The HMI
keys
and work in a similar manner:
=Run, =Stop.
Heatsink: It is a metal part designed for dissipating the heat generated by the power semiconductors.
Amp, A: Ampères.
°C: Degrees Celsius.
°F: Fahrenheit degree.
AC: Alternating Current.
DC: Direct Current.
CFM: “Cubic feet per minute”; it is a flow measurement unit.
hp: “Horse Power”=746 Watts (power measurement unit, normally used to indicate the mechanical power of
electric motors).
Hz: Hertz.
l/s: liters per second.
kg: kilogram=1000 gram.
kHz: kilohertz=1000 Hz.
mA: milliamp=0.001 Amp.
min: minute.
ms: millisecond=0.001 second.
Nm: Newton meter; torque measurement unit.
rms: “Root mean square”; effective value.
rpm: revolutions per minute: speed measurement unit.
s: second.
V: Volts.
Ω: Ohms.