10-12
LED display
Description
Cause
Possible solutions
EF9 ( flash )
error of
forward/
reverse
rotation
Forward run and reverse run are
active within 0.5 sec of each
other. Stop method set by
parameter 07-09.
Forward run and
reverse run active (see
2-wire control).
Check run command wiring
Rang setting error
Parameter setting falls outside
the allowed range.
Some parameter ranges are
determined by other inverter
parameters which could cause an
out of range warning when the
dependency parameter is
adjusted. Example:
02-00>02-01,or 20>02-21
2.00-12>00-13,
00-07 =1, 00-05=00-06
02-03>02-06 or 02-22>02-25
20-16<20-15
Check parameter setting.
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 and not used.) or:
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.
03-00~03-05 set two-wire and
three-wire in the same time.
Check multi-function input
setting.
V/f curve
error
V/f curve setting error.
V/F curve setting error.
01-02(Fmax)>01-12
(Fbase)>01-06
(Fmid1)>01-08(Fmin)
01-16(Fmax2)>
01-24(Fbase2)>
01-20(Fmid1)>
01-22(Fmin2)
Check V/F parameters