INVT Goodrive 300-16 - Page 35

Goodrive300-16 special inverter for HVAC Commissioning guidelines
34
Code
Fault
Cause
Solution
SPO
Output phase
loss
U,V,W phase loss input(or
serious asymmetrical three
phase of the load)
Check the output distribution
Check the motor and cable
OH1
Rectifying
module
overheated
Air duct jam or fan damage
Ambient temperature is too
high.
The time of overload running
is too long.
Refer to the overcurrent solution
Redistribute dredge the wind
channel or change the fan
Low the ambient temperature
Check and reconnect
Change the power
Change the power unit
Change the main control panel
OH2
IGBT
overheated
EF
External fault
SI external fault input
terminals action
Check the external device input
CE
485
communication
fault
The baud rate setting is
incorrect.
Fault occurs to the
communication wiring.
The communication address
is wrong.
There is strong interference
to the communication.
Set proper baud rate
Check the communication
connection distribution
Set proper communication
address.
Chang or replace the connection
distribution or improve the
anti-interference capability.

ItE
Current-detect
ing fault
The connection of the control
board is not good
Assistant power is bad
Hoare components is broken
The modifying circuit is
abnormal.
Check the connector and
repatch
Change the Hoare
Change the main control panel
tE
Motor-autotun
ing fault
The motor capacity does not
comply with the inverter
capability
The rated parameter of the
motor does not set correctly.
Change the inverter mode
Set the rated parameter
according to the motor name
plate
Empty the motor load and