10-6
LED display
Description
Cause
Possible solutions
Motor control
fault
Motor control fault
Start or Run fault in PMSLV mode.
Increase the value of
22-10 and 22-23.
Perform auto-tune (22-21)
Check if the load is too
heavy to raise torque
output limit.
Operator
Communication
Error
Communication error
between inverter and LCD
keypad.
LCD keypad and inverter cannot
transmit data after power on 5
seconds.
Disconnect the operator
and then reconnect.
Replace control board.
Operator
Communication
Error 2
Communication error
between inverter and 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 control board.
Current
Transducer
Error
Three phase input
voltage detection level
error
Input voltage abnormal
Input voltage noise is too high
Control board malfunction
Check input voltage and
the voltage signal of
control board
PTC Error
PTC wires disconnected
PTC wires disconnected for more
than 10 seconds.
Check the MT and GND
connection
Operator
Disconnection
When 00-02=0 and
operator is disconnected
while inverter is running.
Fault action selection set
by parameter 16-09.
When 00-02=0, warning is
displayed when operator is
disconnected.
Check the keypad operator
connection.