Chapter 6 Troubleshooting - Emerson EV2000 Series User Manual

Table 6-1 listed the possible faults of EV2000. Once a fault occurs, you may check it against the table and record
detailed phenomena before seeking service from your supplier.
Fault
Fault categories
code
Over-current
E001 during
acceleration
Over-current
E002 during
deceleration
Over-current in
E003 constant speed
operation
Over voltage
E004 during
acceleration
Over voltage
E005 during
deceleration
Over voltage in
constant-speed
E006
operating
process
Drive's control
E007 power supply
over voltage
E008 Input phase loss Any of phase R, S and T cannot be detected
Output phase
E009
failure

Chapter 6 Troubleshooting

Table 6-1 Faults and actions
Possible reasons of fault
Too short Acc time
V/F curve is not suitable.
The rotating motor restarts right after stop.
Low AC supply voltage
Drive power is too small
Too short Dec time
The load generates energy or the load inertial
is too big
Too low drive's power
Sudden change of load
Too short Acc/Dec time
Abnormal load
Low AC supply voltage
Insufficient drive's power
Abnormal AC supply voltage
Too short Acc/Dec time
The rotating motor re-start after the drive stops
instantly.
Too short Dec time (with reference to
generated energy)
The load generates energy or the load inertial
is too big
Abnormal AC supply voltage
Too short Acc/Dec time
Abnormal change of input voltage
Too big load inertia
Abnormal AC supply voltage
Any of Phase U, V and W cannot be detected
EV2000 Series Universal Variable Speed Drive User Manual
Chapter 6 Troubleshooting
Actions
Prolong the Acc time
Check and adjust V/F curve, adjust
torque boost or set the motor parameters
correctly to ensure the normal auto
torque boost.
Set F2.00 to "start on fly" function
Check the drive's input AC supply
Select a high power drive
Prolong the Dec time
Connect suitable braking kit
Select the drive with bigger power
Reduce the change of the load
Prolong Acc/Dec time
Check the load
Check the AC supply voltage
Select the drive with bigger power
Check the AC supply voltage
Prolong the Acc time
Set F2.00 to "start on fly" function
Prolong the Dec time
Use suitable dynamic braking kit
Check the AC supply voltage
Prolong the Acc/Dec time
Install input reactor
Use suitable dynamic braking kit
Check the AC supply voltage or seek
service
Check the wiring and installation
Check the AC supply voltage
Check the drive's output wiring
Check the cable and the motor
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