28
DD96
Series
Display Units
Vcc
(A-1)
(B-1)
GND
(A-8)
(B-8)
A(2 )
(A-2)
(B-2)
(A-3)
(B-3)
(A-4)
(B-4)
(A-5)
(B-5)
0
B(2 )
1
C(2 )
2
D(2 )
Latch
DP
BI
BO
3
(A-6)
(B-6)
(A-7)
(B-7)
OUT
(Name)
Power
24V DC
Data
Input
Output
Zero-blanking Circuit
(Terminal No.)
Regulating
Circuit
Decoder
Input Circui
t
12 kΩ
Data Input
GND
A–8, B–8 Terminals
200 kΩ
+12V
Terminal Connection
Connection Diagram
Internal Input Circuit
Power
24V DC
Data
Input
Vcc (+)
GND (−)
A
D
Latch
Power
24V DC
Data
Input
Power
24V DC
Data
Input
When Tr is on,
output goes to L.
When Tr is off,
output goes to L.
Vcc (+)
GND (−)
A
D
R1
R2
Tr
Tr
Vcc (+)
GND (−)
A
D
External Wiring
[Contact Input (Digital Switch)]
[Transistor Input]
Note: When connecting a pull-up or pull-down resistor to the external circuit, R1 and R2 should be 2.2 to 10 kΩ (1/2 to 1/4W) and 1 to 2.2 kΩ (1 to 1/2W),
respectively.
Vcc
(B-1)
Vcc
(A-1)
A(2 )
(B-2)
(A-2)
(B-3)
(A-3)
(B-4)
(A-4)
(B-5)
(A-5)
DP
(B-6)
Latch
(A-6)
BO
(B-7)
BI
(A-7)
GND
(B-8)
GND
(A-8)
0
B(2 )
1
C(2 )
2
D(2 )
3
A(2 )
0
B(2 )
1
C(2 )
2
D(2 )
3
A
B
Data Input
Data Input
Terminal Arrangement (Connector)
Bottom View
Note: Since power supply terminals and terminals
A(2
0
), B(2
1
), C(2
2
) and D(2
3
) on sides A and
B are internally connected to each other,
connection is sufficient to only one side, but
use terminals on the same side for jumper
wiring.
Applicable Wire: Solid ø0.6 maximum
Stranded AWG28 to 30
Function Table
Data Input
LED
Display
Output
Negative Logic Type
Decimal
Display Unit
BO
D
C
B
A
Latch
DP
BI
H
H
H
H
H
H
H
blank
H
H
H
H
H
H
H
L
0
L
H
H
H
L
H
H
∆
1
L
H
H
L
H
H
H
∆
2
L
H
H
L
L
H
H
∆
3
L
H
L
H
H
H
H
∆
4
L
H
L
H
L
H
H
∆
5
L
H
L
L
H
H
H
∆
6
L
H
L
L
L
H
H
∆
7
L
L
H
H
H
H
H
∆
8
L
L
H
H
L
H
H
∆
9
L
L
H
L
H
H
H
∆
blank
L
L
H
L
L
H
H
∆
blank
L
L
L
H
H
H
H
∆
blank
L
L
L
H
L
H
H
∆
blank
L
L
L
L
H
H
H
∆
blank
L
L
L
L
L
H
H
∆
blank
L
×
×
×
×
L
H
∆
maintain
Input and Output Function
A, B, C, and D (binary code) Input
A, B, C and D are binary-coded decimal inputs corresponding to 1, 2,
4 or 8.
Latch Input
When the Latch input is set to level L, the display at the time is
maintained. (DP and BI inputs are independent.)
DP (Decimal Point)
When the DP input is set to level L, the decimal point turns on.
BI (Zero Blanking Input)
When the BI input is set to level H with 0 displayed, the display is
blanked.
BO (Blanking Output)
The BO output goes to level H during zero blanking. Leading zeros can
be suppressed by connecting the BO to the BI on the lower digits.
Note:
× indicates the display after inputting the Latch signal is maintained regardless of
the voltage level of H or L.
∆ indicates the display is not affected by voltage level of H or L.
DP (decimal point) turns on when the DP input signal is in level L.
