CHINT NVF5-3.7/TS4-B Quick Start-Up Wizard

E.OV1
Inverter
Accel.
running
overvoltage
Motor short circuit to ground
Abnormal input voltage
Motor quick start again at high speed
Potential Energy Load or Big Inertial Load
Increase decel. time
Incorrect setting of Parameter ASR
in vector control
Big Inertial Load
Check motor cable
Check the input power supply
Start inverter when motor stop
Add Regen. Brake Components
Increase decel. time
Refer to Parameter Group F3
about how to set ASR
E.OV2
Inverter
Decel.
running
overvoltage
E.OV3
Inverter
constant
speed running
overvoltage
E.SPI
Input Lose
Phase
R.S.T lose phase
Checking Main Power Terminal
Wiring
Check Input Voltage
Check Motor Cable
Check Motor and Cable
E.SPO
Output Lose
Phase
U.V.W lose phase
E.FO
Power Module
Protection
The output three-phase with
interphase short circuit or ground
short circuit
Inverter instantaneous overcurrent
Fan duct blockage or fan damage
High ambient temperature
Loose I/O wiring or plug
Current waveform anomaly due to output
lose-phase and other reasons
Aux. power supply damage,
drive voltage undervoltage
IGBT Module Damage
Control Board Abnormal
Re-wire, confirm the motor
insulation
See overcurrent handling
Clear the fan duct or replace
the fan
Lower ambient temperature
Check wiring and re-wire
Checking wiring
Asking for Chint technical support
E.OH1
Heat Sink
Overheat
High ambient temperature
Fan duct blockage
Fan damage
IGBT abnormal
Temperature checking circuit error
Lower ambient temperature
Clear the fan duct
Replace the fan
Asking for Chint technical support
E.OH2
Rectifier Bridge
Overheat
E.OL1
Motor Overload
Incorrect Motor Overload Ratio
Motor Stall or load change frequently
Long time low speed ruuning with excessive
load
Low grid voltage
Unsuitable V / F curve
Incorrect Motor Nameplate
Excessive load
Excessive DC Brake
Accel. Time too short
Input correct motor overload ratio
Check motor load
Select Frequency conversion
motor
Check grid voltage
Adjust V/F cruve or adjust manual
torque boost
Motor auto tuning
Enlarge inverter power rate
Reduce DC brake
current, increase brake time
Increase accel. time
E.OL2
Inverter
Overload
E.tE
Auto Tuning
Set Wrong Motor Data
Reverse Auto Tuning is
prohibited in reverse running
Poor contact of motor
connecting cable
Auto Tuning Overtime
Set correct motor data
Disable Reverse
Check motor cable
Check Parameter F0.08
（Frequency Max.） whether is
samller than rated frequency
E.StG
Motor short
circuit to ground
Motor short circuit to ground
Check motor cable
E.LL
Load Loss Fault
Inverter Current is Smaller than the value of
Parameter FE.18
Check whether load loss or
parameter FE.17、FE.18、FE.19
parameter setting

CHINT NVF5-3.7/TS4-B Specifications

General

Brand	CHINT
Model	NVF5-3.7/TS4-B
Category	Inverter
Language	English