Fault Information And Solution - INVT Goodrive3000 Series Operation Manual

Goodrive3000 series medium voltage VFD

5.3 Fault information and solution

Fault
Type of fault
code
OC Input overcurrent
LvI Input undervoltage
OvI Input overvoltage
SPI Input phase loss
PLLF Phase-locked failed
DC bus
Lv
undervoltage
DC bus
ov
overvoltage
Current detection
ItE
fault
PROFIBUS
E-DP
communication fault
Possible causes
 Wrong setting of current loop or
parameters
 Hardware circuit abnormal
 Rectifiers overload
 Input power is abnormal
power-down
 Input voltage detection circuit
abnormal
 Input power abnormal
 Interference
 Input voltage detection circuit
abnormal
 Input power abnormal
 Interference
 Input voltage detection circuit
abnormal
 The grid environment is abnormal
 The circuit of the sample board is
abnormal
 Input power abnormal
 Interference
 Input voltage detection circuit
abnormal
 Input power abnormal
 Interference
 Bus voltage detection circuit
abnormal
 The circuit is abnormal or
interfered
 Hoare components is broken
 PROFIBUS communication offline
 Wrong PROFIBUS parameters
setting
-54-
Goodrive3000 PWM rectifier
Countermeasures
 Adjust the current loop and
parameters
 Ask for service
 Adjust the load or rectifier
 Check the input power
 Ask for service
 Check the input power
 Check the external interference
 Ask for service
 Check the input power
 Ask for service
 Check the external interference
 Check and find out the
interference
 Ask for service
 Check the input power
 Ask for service
 Check the external interference
 Check the input power
 Ask for service
 Check the external interference
 Check and settle the faults
 Check communication
 Re-set the relevant parameters