5-5
LED display Description Cause Possible solutions
External
fault 4
External Fault
(Terminal S4)
External Fault Input Terminal
Check the fault reason
Reset external fault of
digital input
External
fault 5
External Fault
(Terminal S5)
External
fault 6
External Fault
(Terminal S6)
Motor
control fault
Motor control fault
SLV mode is unable to run motor
Performrotational or
stationary auto-tune
Increase minimum output
frequency (01-08)
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.
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
Operator
Communication
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
Operator
Disconnection
When 00-02=0, if
operator is disconnected
during inverter running,
the action of operator
disconnected will be
based on the setting of
parameter 16-09.
When 00-02=0, the warning of
keypad operator disconnected.
Check the keypad operator
connection