9.1 Protective and Diagnostic Functions
9-7
Minor fault display Corrective ActionsProbable causesMeaning
Excessive Speed Deviation
The load is too large. Reduce the load.
DEV (blinking)
The speed deviation has been greater
than the setting in F1-10 for longer
-
The acceleration time and decelera-
tion time are too short.
Lengthen the acceleration time and
deceleration time.
Speed Deviation
-
.
The load is locked. Check the mechanical system.
The settings in F1-10 and F1-11
aren’t appropriate.
Check the settings in F1-10 and
F1-11.
EF3 (blinking)
External Fault 3
External fault (Input terminal 3)
EF4 (blinking) External fault (Input terminal 4)
S
Reset external fault inputs to the
EF5 (blinking) External fault (Input terminal 5)
An “external fault” was input from a
-
multi-function inputs.
EF6 (blinking) External fault (Input terminal 6)
mu
-
unc
on
npu
.
S
Remove the cause of the external
fault.
EF7 (blinking) External fault (Input terminal 7)
EF8 (blinking) External fault (Input terminal 8)
CE
MEMOBUS Com Err
Communications Error
Normal reception was not possible
for 2 s after received control data.
−−−
Check the communications devices
and signals.
BUS
Option Com Err
Option Card Transmission Error
A communications error occurred in
a mode where the run command or a
frequency reference is set from an
Transmission Option Card.
−−−
Check the Transmission Card and sig-
nals.
CALL
Serial Com Call
SI-B Communications Error
Control data was not normally re-
ceived when power was turned ON.
−−−
Check the communications devices
and signals.
E-15
Si-F/G Com Err
SI-F/G Communications Error De-
tected
A communications error occurred in
a mode where run or a frequency ref-
erence is set from an Transmission
Option Card and E-15 is set to contin-
ue operation.
−−− Check the communications signals.
EF0
Opt External Flt
SI-K2 External Error Detected
An external error ware received from
an Option Card when EF0 was set to
continue operation.
−−−
Remove the cause of the external er-
ror.
9
To Next Page
Loading...