TECO E310 Series User Manual

5-8
Troubleshooting for OV, LV error
The inverter displays OV, LV
Apply power
Any abnormal
indications?
Input operation command
Input frequency commands
Replace the main circuit fuse
Replace the faulty circuit
b
oard
Replace the control board
Replace the control board
Replace the control board
Replace the control board
Perform detailed chec
k
The inverter is failed
N
O
YES
YES
N
O
NO
YES
‧
Is the main circuit fuse
intac
t
？
Any visual abnormalities?
Is FWD LED still
illuminated after flash
Connect the motor to run
The inverter’s output is OK
YES
YES
YES
YES
N
O
N
O
N
O
N
O
Is the output frequency of the
operating unit displayed?
Is there
Voltage at T1,T2,T3 output
terminals?
Any abnormal value?
Is the current on all
phases even?
Is the inverter
working well after
replacement?
YES
YES
N
O
N
O
Figure 5-3 OV, LV Fault Display Flow Chart

TECO E310 Series Specifications

General

Brand	TECO
Model	E310 Series
Category	Controller
Language	English