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Husqvarna RC 455 Operator's Manual
Also see for RC 455: Operator's manual
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English - 23Menu functionsOperator's Manual RC 455Error message (1B)“Low voltage Phase x low output. 32 A”, where xrepresents phase 1, 2 or 3.Action (1B)Press OK to acknowledge the message. It states on thedisplay that the maximum power output is set to 32 A. Ifthe voltage is still low, the electric motor is turned off andthe low voltage error message is shown.By pressing OK, the unit returns to the maximum poweryou selected at start up. To switch between 63 A and 32 A,the unit must be turned off and then on again.Read the supply voltage on the operations menu “Phase1, Phase 2, Phase 3”. If the voltage, before the motor isstarted, is:Below 340 V, check that none of the cores in the cable arebroken and that there is voltage up to distribution box.Above 340 V, check the cable's core dimensions andlength.Error message (2)“Motor protection tripped”.Cause (2):The electric motor has been overload or a phase is down.This is why the motor cut-out, which is there to protect theelectric motor, has tripped.Action (2):Press OK to acknowledge the error message. Check thatthere is voltage to the hydraulic unit on all three phases.Read the supply voltage on the operations menu “Phase1, Phase 2, Phase 3”.If the voltage to one phase is down: Check the mainscable and the voltage to the distribution box. Motorprotection is reset automatically within three minutes.If the voltage to all phases is higher than 340 V: Wait forthe motor cut-out to reset. Now restart the hydraulic unit.If the motor cut-out trips frequently you should call theservice personnel.Error message (3)“Motor overheated cooling in progress. Do not turn off theelectric motor!”NOTE!Do not turn off the motor, as this can damagedit. When the motor has cooled it is turned offautomatically.Cause (3)The motor temperature sensor is too high.Action (3)Press OK to acknowledge the error message.If after all it is necessary to turn off the engine, the errormessage must still be acknowledged by first pressing OK.The display shows: COOLING. The hydraulic valves forblade and trolley motion are turned off. The blade motioncan also be restarted.When the motor temperature sensor drops below the limitlevel the display shows: MOTOR COOLED PRESS OK.If the motor frequently overheats you should call theservice personnel.Error message (4)“Oil temp. high Check water to the hydraulic unit”Cause (4)Failure to cool the hydraulic oil.Action (4)When the error message is shown, the electric motor isturned off. Press OK to acknowledge the error message.Check that the water coolant is connected to the hydraulicunit and that the water runs to the blade when you turn theknob for blade rotation.Error message (5)“Pressure sensor not working”Cause (5)The pressure sensor for measuring the hydraulic pressureto the blade rotation is not working.Action (5)Press OK to acknowledge the error message. If the errormessage is shown repeatedly, replace the pressuresensor.Error message (6)“High hydr pressure check unit”Cause (6)The blade has jammed, which causes a high hydraulicpressureAction (6)Press OK to acknowledge the error message. If the errormessage is shown frequently, you should call the servicepersonnel. |
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