9.
Fault finding
Table 24 Fault finding
Condition
on page 112
Motor power consumption is too high
on page 113
on page 114
on page 114
on page 115
Pump does not attain its pumping speed
on page 115
Fault
Pump does not start up
Cause
Motor incorrectly connected.
Remedy
Connect motor correctly.
Cause
Overtemperature switch or motor stator defective.
Remedy
Contact us.
Cause
Motor rotor defective.
Remedy
Contact us.
Cause
Pump has seized
- defective rotors, bearings or toothed gears
- pump restarted when it is still hot.
Remedy
Wait for 60 minutes and restart the pump again. If the pump does not start,
contact us.
Fault
Pump gets too hot
Cause
Cooling water supply is not sufficient.
Remedy
Make sure that the cooling water supply is sufficient.
Cause
Cooling water lines are clogged.
Remedy
Decalcify cooling water lines.
Cause
Ambient temperature is too high or cooling air flow is obstructed.
Remedy
Install the pump at a suitable place or ensure a sufficient flow of cooling air.
Cause
Pump is operating in the wrong pressure range.
Remedy
Check the pressure levels within the system.
Fault finding
07/2021 - ©Atlas Copco
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1950840208_A
Содержание DWS 450 VSD+
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