TECO N310 Series - Quick troubleshooting of N310

Chapter 5 Troubleshooting and maintenance
5-7
N
O
N310 INV Fault
N
O
YES
Is fault known?
Fault signal?
Is the fuse
intac
t
？
Replace I.G.B.T
Replace fuse
Replace DM
Check burnt and damaged
p
arts
Visually check controller and
Drive boards
Check according to displayed
fault messa
g
es
Apply the power
Replace the defective boards
*to next page
YES
YES
YES
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
有
Symptoms other than burn
out, damage, or fuse meltdown in
the inverter?
Are displays and
indicators of the
operating unit working
normall
y
?
Any fault
dis
p
la
y
?
3 fault values in
12-2
YES
YES
YES
YES
YES
YES
YES
YES
Is the main circuit
DM intact?
Is the main circuit
I.G.B.T intact?
Is the DC input voltage
controlling the power
correct
Replace control board and
di
g
ital o
p
eratin
g
uni
t
Is the error eliminated
after replacing control
board?
5.3 Quick troubleshooting of N310
What’s the
messa
g
e?
Any fault
dis
p
la
y
?
Check 3 fault values of 12-2 with
▼key.
Is LED lit?
Is +5V control
volta
g
e correct?
Replace the driver board
Check terminals and wiring
Replace the pre-charge resistor
Perform detailed check
The inverter has faulted
Any visual abnormalities?
Any
Symptoms of burn
out and damage?
N
O
YES
z DM =Diode Mdule
z I.G.B.T =Insulat Gate Bipolar Transistor