7-4
LED Display
Description
Cause
Possible Solutions
External Fault
(S1)
External fault (Terminal S1)
Active when 03-00= 25, and
AC Drive external fault
selection 08-24=0 or 1.
● Multifunction digital input
external fault active.
● Multi-function input function
set incorrectly.
● Check wiring
External Fault
(S2)
External fault (Terminal S2)
Active when 03-01= 25, and
AC Drive external fault
selection 08-24=0 or 1.
External Fault
(S3)
External fault (Terminal S3)
Active when 03-02= 25, and
AC Drive external fault
selection 08-24=0 or 1.
External Fault
(S4)
External fault (Terminal S4)
Active when 03-03= 25, and
AC Drive external fault
selection 08-24=0 or 1.
External Fault
(S5)
External fault (Terminal S5)
Active when 03-04= 25, and
AC Drive external fault
selection 08-24=0 or 1.
External Fault
(S6)
External fault (Terminal S6)
Active when 03-05= 25, and
AC Drive external fault
selection 08-24=0 or 1.
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)
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
Comm. Error
Communication error
between AC Drive and LCD
keypad.
● LCD keypad and AC Drive
cannot transmit data after
power on 5 seconds.
● Disconnect the operator and
then reconnect.
● Replace control board.