7-9
LED Display
Description
Cause
Possible Solutions
Digital Input
Terminal Error
Multi-function input setting
error.
● Multi-function digital input
terminals (03-00 to 03-05) are
set to the same function (not
including ext. fault)
● UP/DOWN commands are not
set at the same time (they must
be used together).
● UP/DOWN commands (08 and
09) and ACC/DEC commands
(11) are set at the same time.
● Speed search 1 (19: maximum
frequency) and Speed search 2
(34: from the set frequency) are
set at the same time.
● 03-00 to 03-05 set two-wire and
three-wire at the same time.
● Check multi-function input
setting.
V/F Curve
Error
V/f curve setting error.
● V/F curve parameters set
improperly.
● Check V/F parameters to
ensure values are in
appropriate order (e.g.
minimum frequency higher
than rated frequency)
PID Selection
Error
PID selection error.
● 10-00 and10-01 set to 1(AI1) or
set to 2(AI2).
● Check 10-00 and 10-01
● Check 10-33 and 10-34
Model Select
Error
AC Drive capacity setting
error: AC Drive capacity
setting 13-00 does not match
the rated voltage.
● AC Drive capacity setting does
not match voltage class
(13-00).
● Check AC Drive capacity
setting 13-00.
PI Setting
Error
AC Drive PI setting error
● AC Drive pulse input selection
(03-30) selection conflicts with
PID source (10-00 and 10-01).
● Check pulse input selection
(03-30) and PID source
(10-00 and 10-01).
FB (Flash) PID
Feedback
Breaking
PID feedback signal falls
below level specified in 10-12
(PID feedback loss detection
level) for the time specified in
10-13 (Feedback loss
detection time). Active when
parameter (10-11 = 1).
● Feedback signal wire break
● Feedback sensor broken.
● Check feedback wiring
● Replace feedback sensor.