8
Trouble shooting
Possible cause
Action
Voltage protection on frequency card trips
because of too low/high voltage or voltage
spikes
Check the voltage. If unstable voltage, connect
a transformer.
Defective motor/frequency converter
Remedy - replace
8.4
Heater does not start
Possible cause
Action
No power supplied
Check the mains switch, fuses and supply line
Defective controller
Replace the controller
Circuit breaker(s) F1 and/or F2 tripped
Reset the circuit breaker(s)
Thermoswitch R1 tripped (located in the
heater cabinet. See Electrical system
diagrams, page 6).
Reset the thermoswitch.
8.5
Separator stops
Possible cause
Action
Overload due to high throughput
Reduce the flow rate
Overload due to high viscosity
Reduce the flow
Bowl hood interlock out of correct position
Reposition the interlock
Overload due to clogged disc stack
Clean the separator disc stack
Overload due to incorrect assembly
Check the bowl assembly
Tripped frequency converter due to too
low or too high supplied voltage (>±5% of
nominal voltage)
Check the voltage.
Check the voltage. If unstable voltage, connect
a transformer.
Also see possible causes and actions in
8.1 Cleaning system/separator does not start or
stops shortly after start on page 49
.
Defective frequency converter card
Replace card in control cabinet.
Counter pressure too high
Reduce counter pressure.
8.6
Noise
Possible cause
Action
Cavitation in pump
Reduce the flow. See chapter
6 Control Cabinet
Vibration dampers in separator are worn
Fit new dampers
Incorrect assembly of separator bowl
Dismantle and check
Bearings damaged
Fit new bearings
50
Содержание 9016159-80
Страница 6: ......
Страница 10: ...2 Application ...
Страница 15: ...4 Description of main parts X X 1 6 2 3 12 9 13 7 8 10 5 11 4 14 G1105211 15 ...
Страница 34: ...6 Control Cabinet ...
Страница 48: ...7 Operating instructions ...
Страница 59: ...9 Maintenance Dismantling G04491c1 See comments on opposite page 59 ...
Страница 67: ...9 Maintenance G0449671 67 ...
Страница 68: ...9 Maintenance G0449681 68 ...
Страница 74: ...12 Lifting instruction ...
Страница 75: ...13 Diagrams 13 1 Electrical system Alfa Laval ref 9014734 Rev 7 75 ...