Troubleshooting Of The Inverter - TECO E510s Series Instruction Manual

5.3 Troubleshooting of the Inverter

5.3.1 Quick troubleshooting of inverter
INV Fault
Is fault known?
YES
Symptoms other than burn
out, damage, or fuse
meltdown in the inverter?
YES
Fault signal?
YES
Check according to
displayed fault messages
Consult with the supplier
Apply the power
Are displays and
indicators of the
operating unit working
normally?
YES
Any fault display?
YES
What the message
*to next page
NO
Any Symptoms of burn
NO
out and damage?
Is the main circuit DM
NO
intact?
Is the fuse intact？
Is the main circuit
I.G.B.T intact?
Visually check controller
and Drive boards
YES
Any visual
abnormalities?
NO
NO Is LED lit?
Is the DC input voltage
controlling the power
?
Is +5V control voltage
correct?
NO
Replace control board
and digital operating unit
Is the error eliminated
after replacing control
5-15
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
correct
YES
NO
YES
NO
board?
Check burnt and
damaged parts
Consult with the supplier
Replace fuse
Consult with the supplier
Replace the pre-charge
resistor
Check terminals and
wiring
Consult with the supplier
Perform detailed check and
consult with the supplier
YES