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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
Communication
Error
LCD keypad
communication error
LCD keypad and inverter are
unable to initiate communication at
power up. Error occurs after 5 sec.
Disconnect the LCD
keypad and reconnect.
Replace control board
LCD display
only*
CF01
Operator
Communication
Error 2
LCD keypad
communication error
LCD keypad and inverter are
unable to communicate for more
than 2 sec.
Disconnect the LCD
keypad and reconnect.
Replace control board
LCD display
only*
*
When communication errors occur using the LED keypad, the LED display will stay lit and the inverter
will initiate a stop.