
7
TROUBLESHOOTING
65
Table 31 Fault Diagnosis and Corrective Actions (Cont’d)
Fault Display
Description
Details
Corrective Action
Rank*
(Standard
Value)
EF7
External Fault 7
External fault at
terminal 7
Fault occurred in the external control
Check the condition of the input
terminal.
If the fault is displayed when
B
EF8
External Fault 8
External fault at
terminal 8
Fault occurred in the external control
circuit.
If the fault is displayed when
terminal is not connected, replace
the inverter.
B
OPE01
kVA Selection
kVA selection fault
(OPE01)
kVA selection fault
Check and set the constant data.
C
OPE02
Limit
Constant setting range
fault
(OPE02)
Constant data is out of range.
Check the constant data settings.
C
OPE03
Terminal
Multi
−
function contact
input selection fault
(OPE03)
⋅
In H1
−
01 to H1
−
06 settings:
⋅
The same values are set except for F,
FF and 20 to 2F.
⋅
Both UP/DOWN and HOLD
commands are set.
⋅
UP and DOWN commands are not
set at the same time.
⋅
Two or more HOLD, UP/DOWN,
sample/hold commands are set.
⋅
Two or more speed search 1, 2, 3
commands are set.
⋅
In B5
−
01 setting, both PID control and
UP/DOWN commands are set.
⋅
In H3
−
09 setting, terminal 13/14
selection and the value other than ”Not
used” are set at the same time.
Check the constants.
C
OPE05
Sequence Select
Option reference
selection fault (OPE05)
⋅
In B1
−
01 setting, C
−
option is not
connected although frequency reference
from C
−
option is selected.
⋅
In B1
−
02 setting, C
−
option is not
connected although run command from
C
−
option is selected.
Check the constants.
C
OPE06
PG Opt Missing
Control method
selection fault (OPE06)
In A1
−
02 setting:
⋅
PG is not connected although V/f
control with PG feedback is selected.
⋅
PG
−
B is not connected although flux
vector control is selected.
Check the constants.
C
OPE07
Analog Selection
Multi
−
function analog
input selection fault
(OPE07)
⋅
In H3
−
05 and H3
−
09 settings, the same
values are set except for 0 and 1F.
⋅
While AI
−
14B is connected, ”0” is set
in F2
−
01 and option/inverter selection is
set in multi
−
function contact input.
Check the constants.
C
OPE10
V/f Ptrn Setting
V/f data setting fault
(E1
−
04 to E1
−
10)
FMax
(E1
−
04)
When the settings of E1
−
04 to E1
−
10 do
not satisfy the following conditions:
F Max.
≧
F A
>
F B
≧
F Min.
(E1
−
04)(E1
−
06)(E1
−
07)(E1
−
09)
VMax
(E1
−
05)
VC
(E1
−
08)
VMin
(E1
−
10)
0
V
FMin
(E1
−
09)
FB
(E1
−
07)
FA
(E1
−
06)
F
Check the constants.
C