Electrical System – 5000

7PML20-6,

CodeC31

DescriptionPressure switch warning.

Possible error cause A problem with the pressure switch. Check that the voltage is approximately 24 V between cables 24 and 40 connected to the pressure sensor. Check the voltage between cable 40 and 63 connected to the pressure sensor. The output voltage should be 0.5 Volt (unloaded machine) - 5 Volt (max load).

CodeC41

DescriptionWarning of low battery voltage

Possible error cause Battery voltage < 17 volt. The battery parameters are not correctly set. Time to charge up the battery.

Action

1.Check parameter 21, battery size and type.

2.Check the battery contact and the pole connections on the battery

3.Check the key switch, S17, poor contact causes unpermitted voltage drop.

The electrical system measures the voltage inside the travel regulator.

CodeC42

DescriptionWarning of high battery voltage

Possible error cause Battery voltage > 33 volt. Energy return feed to battery during motor braking with a fully-charged battery.

Action

1.The fault disappears after a few lifts, once the battery has been run down slightly.

2.Check the cabling, the battery contact and the contact points on main contactor K10.

CodeC43

DescriptionThe travel regulator shuts off due to excess or subnormal temperature.

Possible error cause Too intensive operation or ambient temperature too cold.

Error in the travel regulator. Temperature levels below -25oC or above +85oC reduce running speed.

Action

1.Check that the M12 fan is functioning. (Applies to P 24)

2.Check that the travel regulator is installed with good contact with the chassis.