INSTRUCTION MANUAL FOR THE LD514 REMOTE DISPLAY
Rev.1.08
02 Sep. 2010
Standard
LD515
comparible
A/D converter input over
A/D converter input negarive over
Net weight
＞
Net Over
Total weight
＞
Maximum scale value
+ 9 divisions
Total weight
＞
Total quantity over
Tare quantity
＞
99999
Loadcell Indicator
CZ
ZT
MD ZALM TARE NET GROSS
HOLD
LD514
EXTERNAL
DISPLAY
HOLD
When the indicator is in one of the following states,
this LED comes on.
- The indicated weight value is held.
- The hold signal is input in the rear panel terminal base.
- The digital indicator status is HOLD.
GROSS
When the indicated weight value is a total
weight, this LED comes on.
NET
When the indicated weight value is a net weight,
this LED comes on.
TARE
When the indicated weight value is a tare weight
or the indicator is in the tare subtraction status,
this LED comes on.
CZ
When the indicator is within
±
1/4 scale division
from the zero point, this LED comes on to
indicate the true zero point.
ZT
When the indicator is Zero Tracking (ZT), this
LED comes on.
MD
When the indicator status is stable, this LED
comes on. (This may come on in the unstable
status depending on the indicator type.)
ZALM
When the indicator status is Zero Alarm
(ZALM), this LED comes on.
kg
N
t
g
Unit of weigt
The unit of weight value is none at delivery. Select a necessary unit
indication from attached unit seals and paste it at a proper position.
lb
Negative sign indicating digit
Digital Indicator
（※
This indicator is based on the
overflow indication of our F360A
series, so the indication may be
different from the indication of the
LD514 main unit depending on the
indicator that is connected.
）
A/Dconverter
－
over scale
A/Dconverter over scale
Indicated value
＞
99999
Connection Fault Indication
When the dedicated serial interface input short-circuits
or wire breaking occurs, or when the rotary switch is not
selected correctly, blanking (all digit OFF) takes place
and all the status indicating LEDs come on.
In this case, check the following items and take a proper
measure.
- When the dedicated serial interface is used, check if it is
correctly connected or any wire breaking does not
occur.
- Check if the rotary switch is set according to the
specified number.
- Check if the indicator is normally operated.
When the all-digit indicating part and the status
indicating LEDs do not come on, check the following
item and take a proper measure.
- Check if the power supply (100 to 220 V AC) is
correctly input.
FRONT PANEL
Numeric display part
This part indicates the following 7 types of value.
- Total weight
- Net weight
- Tare weight
- Load cell indicator interrelated value (Standard mode)
- Load cell indicator interrelated value (LD151 compatible mode)
- Digital indicator interrelated value
- Over-scale indication
Self-check (self-diagnosis) method
The LD514 can make a self-diagnostic test by special operation
or a command from the indicator. If any fault is not found by
self-diagnostic test (ROM check), a visual check is started in
succession. At the visual check, a decimal point and a number
of 0 to 9 are displayed for each digit on the display unit.
Visually check if the numeric value can be normally indicated.
The self-check is made in the following two cases.
- The power supply is turned on after the rotary switch is set to
the self-check mode.
When the rotary switch is set to No.8 and then the power
supply is turned on, the check is repeated until this setting on
the rotary switch is changed.
- A self-check command is given from the indicator that is
connected.
For making a self-check, the load cell indicator such as F805
outputs a check command to the LD154. Some types of
indicator may not output a check command. For details, refer
to the instruction manual for the respective indicator.
Visual check
If the indication is provided as shown above, the
display unit is normal.
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