Husqvarna PG 530 Bedienungsanweisung Seite 29

Red light has come on at the
control panel during
operation
F1.1 on display panel, Over
current
F1.3 on display panel - Earth
fault
F1.9 on display panel -
Under voltage
F1.11 on display panel -
output phase supervision
F1.14 on display panel - unit
over temperature
F.1.15 on display panel -
motor stalled
F1.16 on display panel -
motor over temperature
MAINTENANCE
Fault codes appear on the display screen
inside the electrical cabinet
Motor worked to hard drawing extra current
Short circuit between phases on output
side of variable speed drives
Input phase L1 missing at contactor
Internal motor failure (rare)
Short circuit between phases on output
side of variable speed drives
Motor failure (rare)
Insufficient voltage supply to machine
Power supply to variable speed drives has
been turned off
Short circuit on output side of variable
speed drives. No current in one of the
power phases at the motor.
Variable speed drives are over
temperature due to high temperature in the
working environment or broken
temperature sensor
Motor stall protection has tripped; the
motor is working too hard and is drawing
extra current
Mechanical jam between ginding discs
beneath the grinding head
Mechanical jam on the planetary drive
Motor worked to hard drawing extra current
Check the fault code on the display screen and respond
accordingly
Check that current is drawn when the machine is running.
Reduce speed setting and current draw back into
acceptable limits as out lined in the electrical diagnostics
manual
Check wiring in plugs connected to motor cables or inside
connection boxes on motors
Check incoming wiring at power plugs and contactor
Have motor tested. Replace if needed.
Check wiring in plugs connected to motor cables and inside
the terminal boxes on motors for loose earth wires
Have motor tested. Replace if needed.
Check power supply and ensure correct voltage. Check
power source at the wall supply.
Re-connect power to grinder. Check DC-link (screen
V.1.18) in both the standby (550 +/-5) and run mode (500+/
-5)
Check the wiring in the plugs connected to motor cables
and inside terminal boxes on motors
Open door on the electrical cabinet to increase ventilation.
If needed have the variable speed drives tested by a
Huskvarna service agent.
Check the current being drawn when the machine is
running. Reduce motor speed settings via the
potentiometers on the control panel near the handle bars
and draw current back into acceptable working limits
according to "Monitoring Menus Output Frequency"
Tilt the machine back and inspect the grinding discs for
foreign items. Rotate grinding discs by hand to see if jam
exists. Ensure that all three grinding discs rotate togehter.
If one grinding discs rotate individually a broken belt is
causing an internal jam. Contact Husqvarna service agent.
Tilt the machine back and try to rotate the planetary head
by hand, to see if jam exists. This should be firm but not
impossible. Remove cover and clean away any debris.
Check the current being drawn when the machine is
running. Reduce motor speed settings via the
potentiometers on the control panel near the handle bars
and draw current back into acceptable working limits
according to "Monitoring Menus Output Frequency"
English – 29