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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
Motor temperature
overheating fault
Yes
Yes
Yes
No
No
If it’s normal after replacing the terminal board
Terminal board fault
Ask for technical support
Yes
No
Fig.9-22 Motor Temperature Overheating Fault（Err45）
Fig.9-23 Oil Pressure Sensor Fault (（Err4６）
Note: Err47 and Err48 are the relevant failure contents of pumps in parallel
flow.
If adopt the control single pump, 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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