45
No Fault
Code
Possible Causes
Solutions
Fault
Type
◆
Check the connector and
repatch;
◆
Replace Hoare current
sensor;
◆
Replace the main control
board.
External fault
485
communi-
cation fault
◆
Set proper baud rate;
◆
Check the communication
interface wiring;
◆
Set the correct
communication address
◆
Replace or change the
wiring, improve anti-
interference capability.
◆ Lower ambient
temperature
◆
Check
input
power of
supply line
◆
The baud rate setting is
incorrect;
◆
Communication wire
failure;
◆
The communication
address is wrong;
◆
There is strong interferen-
ce to the communication.
◆
The connection of
control board is not good;
◆
Hoare components are
broken;
◆
The modifying circuit is
abnormal.
◆
Ambient temperature is
too high;
◆
The time of overload
running is too long.
◆
Sn external fault input
terminals action
IGBT
module
overheat
Current
detecting
fault
13
14
11
12
E.oH1
E.EF
E.CE
E.IcE
◆
There is an error in read-
write control parameter;
◆
EEPROM is damaged.
◆
Press
STOP/RST
to
reset;
◆
Replace
the
main control
board
◆
PID feedback offline;
◆
PID feedback source
disappear.
◆
Check the PID feedback
signal;
◆
Check the PID feedback
source.
15
E.EEP
EEPROM
operation
fault
16
E.PId
PID feedback
disconnection
fault
Troubleshooting
◆
Check
input
power of
supply line.
◆
U, V, W phase loss
output (Or serious asym-
metrical three-phase of
the load).
Output
phase
loss
10
E.SPo
E.oL2
◆
Increase the acceleration
time;
◆
Avoid restart after stopping;
◆
Check the power of the
supply line;
◆
Select a AC drive with
bigger power;
◆
Select a proper motor.
◆ The acceleration is too
short;
◆ Reset the rotating motor;
◆ The voltage of power
supply is too low;
◆ The load is too heavy;
◆ Close loop vector control,
reverse direction of the
code panel and long low-
speed operation.
The AC drive
overload
9
