gefran VDI100 Series User Manual

LED display Description Cause Possible solutions
EF8
External fault (S8)
External fault (Terminal S8) Active
when 03-07= 25, and Inverter
external fault selection 08-24=0
or 1.
• Multifunction digital input external fault
active.
• Multi-function input function set incorrectly.
• Check wiring
EF8
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
CF07
CF08
Motor control fault
Motor control fault •Start or Run fault in PMSLV mode
•Increase the value of 22-10 and 22-23
properly.
•Re auto-tune (22-21).
•Check if the load is too heavy to raise torque
output limit.
CF08
FU
fuse open
DC bus fuse blown
DC fuse (Models
230V Class
37kW and above, 400V Class
75kW 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
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 Communica-
tion 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 (KB-LED-VDI100), the LED will stay the screen and stop action.
10.3. Warning/Self-diagnosisDetectionFunction
When the inverter detects a warning, the keypad displays a warning code (ash).
Note: The fault contact output does not energize on a warning and the inverter continues operation. When the warning is no longer
active the keypad will return to its original state.
When the inverter detected a programming error (for example two parameters contradict each other of are set
to an invalid setting), the keypad displays a self-diagnostics code.
Note: The fault contact output does not energize on a self-diagnostics error. While a self-diagnostics code is active the inverter does not
accept a run command until the programming error is corrected.
Note: When a warning or self- diagnostic error is active the warning or error code will flash on the keypad.
When the RESET key is pressed, the warning message (ash) disappears and returns after 5 sec. If the warn-
ing or self-diagnostic error still exists.
Refer to Table 10.3.1 for and overview, cause and corrective action for inverter warnings and self-diagnostic
errors.
VDI100 • Instruction manual 333

gefran VDI100 Series Specifications

General

Brand	gefran
Model	VDI100 Series
Category	Inverter
Language	English