42 (E)
LT20A / LT30 Series
BCD
Alarm terminal is
“H”
Alarm terminal is
“H”
True logic: sixth
digits are all “H”.
False logic: sixth
digits are all “L”.
RS-232C
(Note)
∗E
C
R
L
F output.
(∗ is A or B.)
∗E
C
R
L
F output.
(∗ is A or B.)
∗>FXX.XXX
C
R
L
F output.
(∗ is A or B, > is a plus
sign
or a minus sign, X
is a numeral.)
: (“+” or space)
Output
10. Alarm display/output
I/O connectors
All “H”
All “H”
—
Item
Measuring unit is
not connected or
connection has
been cut.
Measuring unit
speed over.
Counter unit
speed over
Overflow
LCD
Sixth digit is F
Solution
Reset
Fix problem and
reset.
Reset
Reset
Limit input to 6 digits
and reset.
Cause
The measuring unit was
exchanged with the power on.
Measuring unit is not
connected or connection
has been cut
The measuring unit’s
spindle exceeded the
maximum response speed.
The counter unit’ s
maximum response speed
has been exceeded.
Value exceeded 6 digits.
(Note) When the output data format is the initial setting . See P40, 41 for other formats.
Note
If the alarm is again displayed/output after solving the problem
Has the measuring unit or its spindle received some strong shock?
Try replacing with the measuring unit used for the other channel.