Husqvarna PG 530 (ph 1) Manuel D'utilisation page 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