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DD3S
Display Units
Series
Unit Combination
Display units and end plates can be combined together by snap
fit. Connection bolts and nuts are not required.
End Plate
Panel Mounting
Display units can be installed into a panel cut-out by snap fit.
Assemble display units and end plates together in advance. Hold
the assembly at the end plates and push it into a panel cut-out.
Mother Board (for 4-digit display)
The mother board is intended for 4-digit display and must be
connected to four display units at once. Therefore, mount or
dismount the mother board properly according to the procedure
below.
[Installation]
Put the substrates of four display
units into the connectors on the
mother board. Insert the substrates
into the connectors, pushing the
display units on upper and lower
sides alternately.
Note: Be sure to insert four display
units at once.
[Removal]
Remove the display units, pulling the
upper and lower sides alternately. Be
sure to remove all the four units at the
same time.
CAUTION:
Never insert or remove the display
units one by one as shown. The
substrate may be damaged.
Note: For installation of the mother
board for 2-digit and 3-digit
display, perform the same
procedure.
18
Connector (optional)
DMC-1
DMC-2
DD9Z-CN1
End Plate
DD9Z-W-
(pair)
Mother
Board
PC Board
Connector
Up
Down
Instructions
1. When cleaning the surface of the filter and housing, use a soft
cloth. Do not use thinner or acid to clean the surface.
2. When the display unit is mounted in a panel cut-out, do not
place a metal object or power line within 40 mm from the end
of the connector terminals (or PC board terminals) at the rear
of the display unit.
3. If the display units are subjected to voltage surges, install a
surge suppressor in the power line.
4. Use shielded cable or metal conduit for the input line. Run the
input wiring as far away as possible from high-voltage and
motor lines. Make the input line as short as possible.
5. When using display units in environments where a large
amount of electrostatic noise is generated, such as where
molding materials, powders, or fluids are transferred through
pipe lines, keep the display units as far away as possible from
electrostatic sources.
6. Avoid using the display unit in a place where excessive and
frequent vibration or impact may occur.
7. Avoid using the display unit in a place where it is exposed to
corrosive gas, water or oil splashes, dust or direct sunlight, or
in a place where organic solvents are used.
8. The filter is made of polycarbonate. Make sure that machine oil
does not touch the filter.
9. If the Latch input is on when the DD3S is powered up, the
data input cannot be read correctly or wrong data may be
maintained. Do not turn on the Latch input for 0.5 sec after the
DD3S is powered up.
10. When connecting a pull-up or pull-down resistor to the input
terminals, ensure compatibility with the input resistor of the
DD3S internal circuit.
11. When the DD3S is powered up, an inrush current of 2A (10
ms maximum) flows through the internal power supply circuit.
Select an external power supply of sufficient capacity, taking
this inrush current into consideration.
12. Solder the terminal at 350°C within 3 seconds using a 60W
soldering iron. Sn-Ag-Cu is recommended when using lead-
free solder. When soldering, do not touch the control unit with
the soldering iron. Also ensure that no tensile force is applied
to the terminal. Do not bend the terminal or apply excessive
force to the terminal. Use a non-corrosive rosin flux.
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