Trouble shooting
31
5 Trouble Shooting
5.1 Failure and countermeasure
Possible failure types in EDS300 are shown in Table 5-1 and failure code is
from E001 to E023.
Some failure code is reserved for intelligent automatic
diagnosis function which will be executed continuously in future. When failure takes
place in the inverter, the user should check according to note of this table first and
record failure phenomena detailedly. Please contact our after-sale service and
technical support Department or agent in your local place when technical service is
needed.
Table 5-1 Failure Type and the Countermeasure
Failure
code
Failure type
Possible reason
Countermeasure
E001
Over current
during
accelerating
process
Accelerating time is too short
Prolong accelerating time
Improper V/F curve
Adjust V/F curve setting
,
adjust
manual torque boost or change to
automatic torque boost
Restart rotating motor
Set speed checking restart
function
Low power source voltage
Check input power supply
Too small power of the inverter
Choose inverter with high-power
E002
Over current
during
decelerating
process
Decelerating time is too short
Prolong decelerating time
Have potential energy
load or big inertia load
Increase braking power of
external energy consumption
braking subassembly
Power of inverter is a bit small
Choose inverter with high-power
E003
Over current
during
constant
speed process
Load change suddenly or Have
unwonted phenomena
Check or reduce break of the load
Accel / Decel time is set to too
short
Prolong accelerating decelerating
time properly
low power source voltage
Check input power supply
Power of inverter is a bit small
Choose inverter with high-power
E004
overvoltage
during
accelerating
process
Unwonted input voltage
Check input power supply
Accel time is set to too short
Prolong accelerating time properly
Restart rotating motor
Set speed checking restart
function
E005
overvoltage
during
decelerating
process
Decelerating time is too short
Prolong decelerating time
Have potential energy
load or big inertia load
Increase braking power of
external energy consumption
braking subassembly
E006
Overvoltage
during
constant
Unwonted input voltage
Check input power supply
Accel /Decel time is set to too
short
Prolong accelerating decelerating
time properly
ENC