TECO A510s - Page 475

10-6
LED display Description Possible causes Corrective action
CF07
Motor control
fault
Motor control fault  SLV mode is unable to run motor.
 Perform rotational or
stationary auto-tune
 Increase minimum output
frequency (01-08)
FU
fuse open
DC bus fuse blown
DC fuse (Models 200V
50HP and above, 400V
75HP and above) open
circuit.
 IGBT damaged.
 Short circuit output terminals.
 Check IGBTs
 Check for short circuit at
inverter output.
 Replace inverter.
CF00
Operator
Communic
ation Error
Errors of data transmission
occur in LCD keypad
 LCD keypad and inverter cannot
transmit data after power on 5
seconds
 Disconnect the operator
and then reconnect.
 Replace the control board
LCD display
only*
CF01
Operator
Communic
ation Error
2
Errors of data transmission
occur in LCD keypad
 LCD keypad and inverter can
transmit data but transmission
error occurs for more than 2
seconds
 Disconnect the operator
and then reconnect.
 Replace the control board
LCD display
only*
* When the communication errors occur in LED keypad, the LED will stay the screen and stop action.