Protective and Diagnostic Functions
6-11
6
DEV
Speed Deviation
(flashing)
Excessive Speed Deviation
Detected when F1-04 = 3 and
A1-02 = 1 or 3.
The speed deviation is greater
than the setting in F1-10 for
longer than the setting in F1-11.
The load is too large. Reduce the load.
The acceleration time and decel-
eration time are too short.
Lengthen the acceleration time
and deceleration time.
The load is locked. Check the mechanical system.
The settings in F1-10 and F1-11
are not appropriate.
Check the settings in F1-10
and F1-11.
EF0
Opt External Flt
(flashing)
Communiation Option Card
External Fault
An external fault condition was
present, input from a communica-
tion option card.
Check for an external fault
condition.
Verify the parameters.
Verify communication signals
EF3
Ext Fault S3
(flashing)
External fault at terminal S3
An external fault was input from a
multi-function input terminal
(S3 to S7) that is programmed for
external fault function that alarms
only and continues to run the
Inverter.
Eliminate the cause of the
external fault condition
EF4
Ext Fault S4
(flashing)
External fault at terminal S4
EF5
Ext Fault S5
(flashing)
External fault at terminal S5
EF6
Ext Fault S6
(flashing)
External fault at terminal S6
EF7
Ext Fault S7
(flashing)
External fault at terminal S7
CE
MEMOBUS Com Err
(flashing)
MEMOBUS Communications
Alarm
Detected when control data was
not received correctly for two sec-
onds and H5-04 = 3 and
H5-05 = 1.
Connection is broken and/or the
master has stopped the communi-
cation.
Check the connections and all
user-side software configura-
tions.
BUS
Option Com Err
(flashing)
Option Communications Alarm
After initial communication was
established, the connection was
lost.
Connection is broken and/or the
master has stopped the communi-
cation.
Check the connections and all
user-side software configura-
tions.
Ext Run Active
Cannot Reset
Detected when a RESET com-
mand is input while the RUN
command is still active
The RUN command has not been
removed and a RESET command
is input by digital input or by the
RESET button on the digital oper-
ator.
Remove the RUN signal first
and reset the error.
CALL
ComCall
(flashing)
Communications on Standby
Communication has not yet been
established.
Connection was not made prop-
erly or user software was not con-
figured to the proper baud rate or
configuration (e.g. Parity).
Check the connections and all
user-side software configura-
tions.
Table 6.2 Alarm Detection
Display Meaning Probable causes Corrective Actions
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