Warranty Card
- 120 -
Customer Feedback Form of Powtran Inverter Failure
Dear Customer: please fill out the form below in details so that we may better serve you:
Load and control situation
Electrical
power and
poles
Rated motor
current
Frequency range
under
normal
working
Load type
□
Fan
□
Textile
machine
□
Extruder
□
Pump
□
Injection
machine
□
Other load
Speed
control mode
□
Keyboard
□
Terminal
□
PID
□
Host
computer
Control
method
□
V/F control
□
Vector control without PG
Failure phenomenon
When failure
occurs
□
power-on
□
start run
□
in operation
□
accelerate
□
decelerate
Failure type
Abnormal current
□
E.oC1
□
E. oC2
□
E. oC3
Abnormal
voltage
□
E. oU1
□
E.oU2
□
E.oU3
□
E.LU
Other display
failure
□
E.oH2
□
E.SET
□
E.EEP
□
E.PId
Board failure
□
no display after power on
□
smoking after power on
□
power board relay does not pull-in
Keyboard failure
□
button malfunction
□
parameter can not be modified
□
imperfect display
□
knob malfunction
Device failure
□
burnt
□
fan does not work
□
main circuit relay or contactor
does not pull-in
□
power resistors burned out
Abnormal output
□
no output voltage
□
output voltage unbalance
□
motor
with large vibrations
□
motor power inadequate
