Productos QP 500VS11, Руководство по установке и эксплуатации

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c. RS485: To enable external control pump RPM, connect terminal A and B, via Modbus485
communication protocol.
9. TROUBLE SHOOTING
Problem Corrective solution
Pump Does Not Start •Power Supply fault, disconnected or defective wiring
• Fuses blown or thermal overload open
• Check the rotation of the motor shaft for free movement and lack
of obstruction.
• Motor windings burned out.
Pump Won't Prime
•Empty pump/strainer housing. Make sure the pump/strainer
housing is filled with water and the cover o ring is clean.
•Loose connections on the suction side.
•Strainer basket or skimmer basket loaded with debris.
•Suction side clogged.
Low Water Flow
•Pump is not primed
•Air entering suction piping
•Basket full of debris
•Inadequate water level in pool
Pump being noisy
•Air leak in suction piping, cavitations caused by restricted or
undersized suction line or leak at any joint, low water level in
pool, and unrestricted discharge return lines.
• Disassemble pump, clean impeller, follow pump service
instructions for reassembly.
•Vibration due to improper mounting, etc.
RS485