7
-14
(blink-
ing)
External Fault Detected for Com-
munications Board Other Than SI-
K2
Continuing operation was specified
for EF0 (F6-03 = 3)and an external
fault was input from the option board.
-
Remove the cause of the external
fault.
(blink-
ing)
External Fault (Input Terminal S3)
An external fault was input from a
multi-function input terminal (S3 to
S8).
• Reset external fault inputs to the
multi-function inputs.
• Remove the cause of the external
fault.
(blink-
ing)
External Fault (Input Terminal S4)
(blink-
ing)
External Fault (Input Terminal S5)
(blink-
ing)
External Fault (Input Terminal S6)
(blink-
ing)
External Fault (Input Terminal S7)
(blink-
ing)
External Fault (Input Terminal S8)
(blink-
ing)
PID Feedback Reference Lost
A PID feedback reference loss was
detected (b5-12 = 2) and the PID feed-
back input was less than b5-13 (PID
feedback loss detection level) for
longer than the time set in b5-14 (PID
feedback loss detection time).
The settings in b5-13 and b5-14 aren’t
appropriate.
Check the settings in b5-13 and b5-
14.
The wiring of the PID feedback cir-
cuit is incorrect.
Fix the wiring.
(blink-
ing)
MEMOBUS Communications Error
Normal reception was not possible for
2 s or longer after received control
data.
-
Check the communications devices
and signals.
(blink-
ing)
Option Board Communications
Error
A communications error occurred in a
mode where the Run Command or a
frequency reference is set from a
Communications Option Board.
-
Check the communications devices
and signals.
(blink-
ing)
Communications on Standby
Control data was not normally
received when power was turned ON.
-
Check the communications devices
and signals.
(blink-
ing)
Reset during Run Command Input
Error
The reset signal was input during Run
Command input from an external ter-
minal or other source.
-
Check that a Run Command is not
being input from an external terminal
or other source.
Table 7.3 Alarm Displays and Processing (Continued)
Display
Meaning
Probable causes
Corrective Actions
