Advertisement
DD96
Display Units
Series
Latch Input
Latch Operation
"1"
"2"
"3"
"4"
(H)
1
(L)
(H)
Binary-
2
(L)
coded
Input
(H)
4
(L)
(H)
8
(L)
Maintains
(H)
Latch Input
display
(L)
"1"
"2"
Display
Character
Latch Input Timing Chart
Binarycoded
Input
(Data Input)
(H)
Latch Input
Maintain
Data is
(L)
read.
T1
T2
T3
Note: If the data input is changed in the period of T2, the display will
change.
Application of Latch Function
"4"
4th Digit
3rd Digit
Data
Data
Binary-coded
Input
(Data Input)
(H)
4th
Maintain
Digit
(L)
(H)
3rd
Maintain
Digit
(L)
Latch
Input
(H)
2nd
Maintain
Digit
(L)
(H)
1st
Maintain
Digit
(L)
Display Unit
Display (Example)
4th
3rd
2nd
Digit
Digit
Digit
Block Diagram
4th
3rd
Digit
Digit
Binary-coded Input
(Data Input)
30
"5"
"6"
"7"
"8"
"9"
Maintains
display
"5"
"6"
"8"
"9"
Maintain
T1 ≥ 0 ms
T2 ≥ 5 ms
T3 ≥ 5 ms
"7"
"5"
"2"
2nd Digit
1st Digit
Data
Data
Maintain
Maintain
Maintain
Maintain
1st
Digit
2nd
1st
Digit
Digit
4th
1st
3rd 2nd
(Latch Input)
Connection to Terminals BI and BO
[Ex. 1]
By connecting as shown below, 0 is displayed when input
is 0000 and 25 is displayed when input is 0025, eliminating
unnecessary 0s in upper digits.
4th
3rd
Digit
Digit
BI
BO
BI
BO
Open
[Ex. 2]
By connecting as shown below, 0000 is displayed when
input is 0000 and 0025 is displayed when input is 0025,
with all 0s in upper digits displayed.
4th
3rd
Digit
Digit
BI
BO
BI
BO
Open
Open
Notes:
1. Use BO output only for connection to BI input in the lower digit as shown
in Ex. 1 above. Do not use the BO for other purposes.
2. When zero blanking is not required, maintain BI input in level L.
Instructions
1. A red filter is not provided for the front of the DD96 series rear
mount display unit.
2. When cleaning the surface of the filter and housing, use a soft
cloth. Do not use thinner or acid to clean the surface
3. 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 connecter terminals at the rear of the display unit.
4. If the display unit is subjected to voltage surges, install a surge
suppressor in the power line.
5. 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.
6. 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.
7. Avoid using the display unit in a place where excessive and
frequent vibration or impact may occur.
8. 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.
9. The filter is made of polycarbonate. Make sure that machine oil
does not touch the filter.
10. If the Latch input is on when the DD96 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
DD96 is powered up.
11. When the DD96 is powered up, an inrush current of 0.4A (10
ms maximum) flows through the internal power supply circuit.
Select an external power supply of suffi cient capacity, taking
inrush current into consideration.
12. When connecting a pull-up or pull-down resistor to the input
terminals, ensure compatibility with the input resistor in the
DD96 internal circuit.
2nd
1st
Digit
Digit
BI
BO
BI
BO
Open
Open
2nd
1st
Digit
Digit
BI
BO
BI
BO
Open
Open
Advertisement
