HTC 950 RX Manual page 48

Electronic error codes
7.2.1 Resetting the frequency converter
1. Turn off the machine by turning the start key to "Off".
2. Wait until the display goes out.
3. Reset the emergency stop switch.
4. Start the machine by turning the start key to "On".
7.2.2 Checking the last error code
1. Press and hold ESC until four dashes (----) are shown in the display.
2. Press ENTER when rdy (ready) is shown. SET is then shown in the display.
3. Press "arrow down" until SUP is shown in the display.
4. Press ENTER. FrH is shown in the display.
5. Press "arrow down" until LFt is shown in the display.
6. Press ENTER. The last error code is shown.
7.3 Schneider Electric ATV312
Error code Cause
OCF Excess current
OHF Overheating
IFx/EEF Internal error
SCF Short circuit or earth fault
involving the motor
tnF Auto-tuning fault
OLF Overload
40
Tip!
The machine will not start if the control ON/STOP is in the "ON" mode
when switching on the power.
Action
The machine is running too fast or with too great a load. Lower
the speed, lower the load by changing the position of the
weights and check your tools. Check mechanical inertia, spin
the grinding discs.
Open the electrical cabinet and allow to cool. Check the filter
and the cooling fans in the cabinet. Let the frequency converter
cool down before restarting.
Contact HTC Service Centre
Check the motor's cables and connections.
Check the motor's cables and connections.
See OCF. Let the frequency converter cool down before
restarting.
HTC 950 RX
1.0