Page 134 - QR KLINDEX EXPANDER850AT-RXt

TROUBLESHOOTING

11.1.2 Error codes

Code Description Checks to run

DC Bus Undervoltage Make sure that the appliance is powered correctly (see section “Connecting
to the power socket”)
Control Power Supply Voltage Fault Check that the power supply cable is intact
Check the three-phase fuses (see section “Electric panel (internal view)”)
Safe Disable Signal Input
Make sure that the appliance is powered correctly (see section “Connecting
Overcurrent to the power socket”)
Motor overload Make sure that all the emergency buttons are released and are working
Driver overload correctly (pressed, contact open: released, contact closed)
Manual: make sure that the left/right dial is set to the centre
Heatsink Overheat Radio controlled: make sure that the left/right dial is set to the centre

Undervoltage Restart the appliance
If the error persists, replace the motor
If the problem persists, contact Klindex
For any other error message, contact Klindex Make sure that the appliance is powered correctly (see section “Connecting
to the power socket”)
With the appliance off, make sure that the planetary rotates freely when its
planets are turned by hand (refer to the maintenance section)
Make sure that tools are used which are suitable for the flooring. If nec-
essary, use tools with a greater number of sectors to increase the contact
surface
If working at a low speed, increase the rotation speed of the planetary (to
approx. 4-6)
Use the weight kit in the central position
Insert the front wheel and lift the appliance until the tools just touch the
ground
Check operation of the cooling fans

Appliance disconnected from the power network. This message appears a
few moments after the appliance has been switched off. The inverter does
not switch off immediately but stays on to display this message for a few
seconds and then switches off completely

11.2 Possible faults and solutions Solution

Fault Make sure that the appliance is powered correctly (see section "Connecting
to the power socket")
"Grinding power ok" LED does not Make sure that the LED is not damaged and that the connections are intact
activate (see the wiring diagram supplied together with the appliance)

Electric panel Check the fuses in position 11 and 12 of fuse holder 3 (see section "Electric
panel (internal view)")
The auxiliary socket is not working Check the transformer

PLC ready light does not activate and Check the fuses in position 7 and 8 of fuse holder 3 (see section "Electric
the fans do not turn panel (internal view)")
Will not turn on
Make sure the battery is charged
TX flashes but RX does not flash Contact Klindex

Radio control Make sure that the appliance is powered
Make sure the battery in the appliance is charged
Yellow “!” LED flashes twice every 20 Make sure that the receiver is connected to the connector
seconds Make sure that all pins of the receiver connector are intact

Yellow “!” LED flashes in an abnormal Radio control battery depleted
way
Contact Klindex and specify the number of flashes

For any other faults, contact Klindex

44 www.klindex.com - Made in Italy