Husqvarna DXR250 Operator's Manual page 67

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
Motor start error, please check:
Soft starter
Contactors
Start relay
TROUBLESHOOTING
Effect on
Indication on
machine
the machine
functions
Flashes with the
work lighting and
puts the
machine in The machine
circular pumping deactivates the
mode. The motor tool and reduces
is shut down if the machine
the message is speed with 50%.
not
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 is
Clean the cooler
above 90°C
Clean the cooler fan
Check the sensor and cables to the
sensor.
Warm up the lower section by
running the caterpillar tracks, first
slowly and then more quickly with
The oil temperature is
the outriggers extended.
below -5°C
Check the sensor and cables to the
sensor.
Check proportional pressure relief
valve.
Oli pressure exceeds
Verify pressure regulator by running
allowed pressure limit.
a cylinder to end position for 2
seconds.
Overload protection Check the input voltage and the soft
alarm in soft starter. starter settings.
Phase error in
Check the voltage level of the
incoming 3 phase and
incoming phases, or if a phase has
the motor temperature
been lost.
is too high.
Allow the circulation pump to run
High motor
and wait for the temperature to
temperature detected
drop.
Check if the pump produces
pressure.
Warns if the pressure
sinks below 2 bar when Check hydraulic fluid level
the motor is running.
Check if the motor runs in the
correct direction.
Check the emergency stop on the
Emergency stop
machine.
pressed on the
machine, faulty safety Check safety relay and its safety
relay or safety relay circuit
control circuit open.
Check start relay
The machine has not
been in contact with The machine flashes 3 times when
the remote control for 2 the message is acknowledged.
min.
The oil pressure in
Check the circulation pump valve
circulation pumping is
(idle valve)
too high.
Check bypass signal from soft
starter.
No bypass signal from
soft starter
Check soft starter, contactors, fuse
F6 and start relay.
English – 67