HTC 950 RX - Page 49

HTC 950 RX Electronic error codes
1.0 41
Error code Cause Action
OSF Excess voltage Mains voltage too high or disturbance in the mains supply.
Check the supply voltage, change socket.
USF Under-voltage The connection cable is too long, poor connection or too many
consumers connected to the mains. Change socket, use shorter
cables and lower the speed.
PHF Mains supply phase break Incorrect power supply to the frequency converter. Check the
fuses in the mains supply and the connection cable.
OPF Motor phase break Check the motor's cables and connections.
7.3.1 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".
Tip!
The machine will not start if the control ON/STOP is in the "ON" mode when
switching on the power.
7.3.2 Checking the last error code
1. Press Enter. rEF is shown in the display.
2. Turn the knob counter-clockwise, until SUP is shown in the display.
3. Press Enter. FrH is shown in the display.
4. Turn the knob counter-clockwise, until LFt is shown in the display.
5. Press Enter. The last error code is shown in the display.
For the buttons and knobs described here, see Figure 7-1, page 41
Figure 7-1. Enter button and knob - Schneider