Err45
Check if Motor temperature overheating PTC cable is wrong
Check if motor temperature is overheating
Check if it’s failure after short connection between
PTC-P and PTC-N terminal
Remove connection fault
Reduce the motor load, increase
the cooling fan, and increase the
capacity of the motor
Motor temperature overheating
protection PTC signal fault
0RWRUWHPSHUDWXUH
RYHUKHDWLQJIDXOW
Yes
Yes
Yes
No
No
If it’s normal after replacing the terminal board
Terminal board fault
Ask for technical support
Yes
No
Motor Overheating Fault˄Err45˅
Oil Pressure Sensor Fault (Err4˒)
Note: Err47 and Err48 are the relevant failure contents for the multi-pump in
parallel flow. If adopt the single pump control, please cut off DI5 input
terminals.And if adopt pumps in parallel flow control, please refer to the
mulitple pump control solution.
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