Grundfos SPK 1, Инструкция по установке и эксплуатации

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English (GB)
9
8. Fault finding the product
WARNING
Electric shock
Death or serious personal injury
- Before starting any work on the product,
make sure that the power supply has
been switched off and that it cannot be
accidentally switched on.
WARNING
Moving parts
Death or serious personal injury
- Tighten the coupling screws to the
correct torque.
- Install the coupling guards securely to
the pump with the screws intended for
this purpose.
CAUTION
Corrosive liquids
Death or serious personal injury
- Wear personal protective equipment.
CAUTION
Toxic liquids
Death or serious personal injury
- Wear personal protective equipment.
CAUTION
Hot or cold liquid
Minor or moderate personal injury
- Wear personal protective equipment.
CAUTION
Hot or cold surface
Minor or moderate personal injury
- Make sure that no one can accidentally
come into contact with hot or cold
surfaces.
Fault Cause Remedy
1. Motor does not
run when started. a) Supply failure. Connect the power supply.
b) Fuses are blown. Replace fuses.
c) Motor starter overload has tripped. Reactivate the motor protection.
d) Main contacts in motor starter are not
making contact or the coil is faulty.
Replace contacts or magnetic coil.
e) Control circuit is defective. Repair the control circuit.
f) Motor is defective. Replace the motor.
2. Motor starter
overload trips out
immediately when
supply is switched
on. a) One fuse/automatic circuit breaker is
blown.
Cut in the fuse.
b) Contacts in motor starter overload are
faulty.
Replace motor starter contacts.
c) Cable connection is loose or faulty. Fasten or replace the cable
connection.
d) Motor winding is defective. Replace the motor.
e) Pump mechanically blocked. Remove the mechanical blocking of
the pump.
f) Overload setting is too low. Set the motor starter correctly.
3. Motor starter
overload trips out
occasionally. a) Overload setting is too low. Set the motor starter correctly.
b) Low voltage at peak times.
Check the power supply.
4. Motor starter has
not tripped but the
pump does not
run. a) Check 1 a), b), d) and e).
5. Pump runs but
gives no liquid or
pump capacity is
not constant. a) Pump strainer partly blocked by
impurities.
Clean the strainer.
b) Liquid level in tank too low. Increase the liquid level.
c) Pump rotates in the wrong direction. Change the direction of rotation of the
motor.