Xylem GOULDS e-SVI Series, Инструкция по эксплуатации

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Cause Remedy
If available, the frequency converter is wrongly
calibrated
See the frequency converter manual.
Unit is defective Contact the local sales and service representative.
7.5 The motor protector on the control panel trips
Cause Remedy
The motor is calibrated at a value too low in relation
to the rated current of the motor.
Recalibrate
The motor protector is defective or incorrectly
sized.
1. Replace the motor protector.
2. Install a correctly sized motor protector.
The power supply voltage is incorrect. Check the power supply voltage.
The power supply phase is missing. Check the power supply and restore the phase.
The connections of motor protector are loose or
defective.
Tighten or replace the clamps and terminals.
The connections of motor terminal box are loose or
defective.
Tighten or replace the clamps and terminals.
The unit is blocked or partially blocked Contact the local sales and service representative.
The connection of star-triangle is not connected
correctly in the motor terminal box.
Check the connection and correct it as required
based on the intended power supply voltage.
The power supply cord is damaged Replace the cable.
The frequency converter is wrongly calibrated (if
present)
See the frequency converter manual.
The liquid is too thick. Check the liquid.
The ambient temperature is too high. Decrease the temperature.
Too many starts See
Starts per hour
on page 12.
Incorrect duty point, flow rate below or above the
permitted limits
Bring back the flow rate in the permitted limits.
The unit is defective. Contact the local sales and service representative.
7.6 The motor becomes too hot
Cause Remedy
The ambient temperature is too high. Decrease the temperature.
The positioning measurements of the unit are not in
limits.
Change the mechanical installation.
The motor fan guard is obstructed. Clean the fan guard.
The motor cooling fan is damaged. Replace the cooling fan.
Too many starts See
Starts per hour
on page 12.
If available, the frequency converter is not
calibrated correctly
See the frequency converter manual.
7.7 Little or no hydraulic performance
Cause Remedy
The three-phase motor turns in the incorrect
direction.
1. Check the direction of rotation.
2. If necessary, change the three-phase motor.
7 Troubleshooting
e-SVI series Instruction Manual 31