Husqvarna DXR300 Operator's Manual page 48

Warning messages
Message on the display
Oil temperature too high.
Machine speed has been
reduced and tool is disabled.
Oil temperature too low.
Machine speed has been
reduced and tool is disabled.
Oil pressure is above
allowed limits. Please check
proportional pressure relief
valve.
Overloading when soft
starting. Check the input
voltage and soft start
settings.
Phase error. Please check:
Incoming phases
Incoming voltages
Machine speed has been
reduced and tool is disabled.
Motor temperature too high.
Machine speed has been
reduced and tool is disabled.
No hydraulic pressure
detected. Please check:
Oil level
Motor rotation
Check Emergency Stop on
machine and safety relay
function.
Terminal lost for more than
120 seconds
Oil pressure in circulation
pump mode too high. Please
check circulation valve
48 –
English
TROUBLESHOOTING
Indication on the Effect on machine
machine functions
Flashes with the
work lighting and
puts the machine in The machine
circular pumping deactivates the tool
mode. The motor is and reduces the
shut down if the machine speed with
message is not 50%.
acknowledged
within 10 sec.
The engine is
switched off.
Flash with the work
lighting.
Prevents starting of
the machine.
Cause Possible action
Put the machine into circular
pumping mode to cool the
hydraulic oil.
The oil temperature
Clean the cooler
is above 90°C
Clean the cooler fan
Check the sensor and cables to
the sensor.
Allow the machine to warm up
slowly. Warm up the lower
section by running the caterpillar
tracks, first slowly and then more
The oil temperature
quickly with the outriggers
is below -5°C
extended.
Check the sensor and cables to
the sensor.
Check proportional pressure
relief valve.
Oli pressure
exceeds allowed
Verify pressure regulator by
pressure limit.
running a cylinder to end position
for 2 seconds.
Overload protection Check the input voltage and the
alarm in soft starter. soft starter settings.
Phase error in
incoming 3 phase Check the voltage level of the
and the motor incoming phases, or if a phase
temperature is too has been lost.
high.
High motor Allow the circulation pump to run
temperature and wait for the temperature to
detected drop.
Check if the pump produces
Warns if the
pressure.
pressure sinks
below 2 bar when Check hydraulic fluid level
the motor is
Check if the motor runs in the
running.
correct direction.
Emergency stop Check the emergency stop on
pressed on the the machine.
machine, faulty
Check bypass signal from
safety relay, safety
softstart
relay control circuit
Check safety relay and its safety
open or no bypass
circuit
signal from
Check start relay
softstart.
The machine has
The machine flashes 3 times
not been in contact
when the message is
with the remote
acknowledged.
control for 2 min.
The oil pressure in
Check the circulation pump valve
circulation pumping
(idle valve)
is too high.