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7. FAULT AND TROUBLE SHOOTING
Fault
1. Detector error
Display
2. Wrong parameter
Pressure
3. Transducer wires too long
Error
1. Loss of pressure
Full
2. Wrong parameter
Frequency
3. Pump under power
Running
Pressure
1. PID value incorrect
Fluctuation
2. Acc./Dec time too fast
Stabilizes
3.Big delay on pressure feedback
Slowly
1. Motor running abnormally
2. Motor Installation not stable
Motor Noise
3. Low carrier frequency
Fault
Fault
Code
Type
Low
Water
LP
Pressure
High
Water
HP
Pressure
Low
Water
LL
Level
Reason
Reason
1. Abnormal sensor.
2. Motor rotates in reverse
direction
3. Insufficient water inflow
4. There is air inside the
pump
1. Abnormal sensor.
2. The parameter B01.00
setting value is too small
1. Water level is too low.
2. Abnormal water level
switch.
3. Wrong setting of water
level switch style parameter
Solution
•
Adopt standard detector
•
Calibration parameter b01.05,
b01.08
•
Shorten wire
•
Check transducer
•
b05.02 should not be set as 1
•
S2-COM should be open
•
Set B07.14=1, or factory reset
•
Tune P1 value b02.03, b02.04
•
Tune Acc./Dec. time b05.03, b05.04
•
Shorten wires
•
Check motor
•
Properly set frequency B05.08
Solution
•
Check the installation of pressure
transmitter
•
Check the motor 's direction of
rotation is correct
•
Check the parameter B01.01 (setting
value too big)
•
Check the pump whether is free of air
•
Check the installation of pressure
transmitter
•
Check the parameter b01.00 (setting
value too small)
•
Check the water system
•
Check condition of the control
terminal S3
•
Check the parameter B05.00 and
correct
6 33
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