INVT GD300-16, Руководство по эксплуатации, Страница: 35 / 136

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