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Datasheet

ManualsBrandsCrameda Intersys Manuals7 Segment LED Displays7-segment LED display 16 mm Red Panel Mount
567891011121314
Crameda Intersys AG CC-DS-E-0011
Pumpwerkstrasse 23 Seite : 11
CH-8105 Regensdorf · Schweiz http://www.crameda.com
Type 822
! Sign and overflow display
! Height of character 16 mm
! Memory
! BCD-Input
! Signal level adaptation
! 24 V Signal- and supply voltage
! Depth when mounted 74 mm
Circuit diagram
This module is used to display sign and overflow (±1). It is
controlled by the BCD code in positive logic. The signal and
supply voltage is +24 V. A control signal (input EL) makes it
possible to freeze the display without affecting the incoming
BCD signals. Inputs «BI» and «LT» are already connected to
the 24 V power supply via internal resistors. If these inputs
are not used, the module will function properly due to these
resistors. Both of these inputs must be controlled in open
collector circuits.
Technical data
Character height 16 mm
Supply voltage VCC 12 V...30 V
Supply current I
CC
with VCC = 12 V typ. 26 mA
= 24 V typ. 19 mA
= 30 V typ. 18 mA
Signal voltage 10 V...30 V
Limit frequency with VCC = 12 V ≤ 10 kHz
= 24 V ≤ 15 kHz
= 30 V ≤ 20 kHz
Depth behind panel 74 mm
Input data
Input voltage all inputs
U
in
«0» min. - 3.5 V
or open
max. +2 V
U
in
«1» min. +10 V
max. +30 V
Input currents all inputs (except BI and DP)
l
in
«0» with U
in
= -3.5 V max. -150 µA
U
in
= +2 V max. 140 µA
l
in
«1» with U
in
= +10 V max. 700 µA
l
in
«0» with U
in
= +30 V max. 2.6 mA
All inputs are connected to ØV.
Input currents Inputs LT, BI
Pull-up resistances 3.3 KΩ
l
in
«0» with U
in
= -3.5 V max. -11 mA
U
in
= +2 V max. -9.2 mA
l
in
«1» with U
in
= +10 V max. -7.2 mA
U
in
= +30 V max. 3 mA
Truth table
Inputs Outputs
LT* BI* EL
C
2
2
B
2
1
A
2
0
Display
1 1 0 0 0 0 +1
1 1 0 0 0 1 -
1 1 0 0 1 0 1
1 1 0 0 1 1 -1
1 1 0 1 0 0 +
1 1 0 1 0 1 +1
1 1 0 1 1 0 +1
1 1 0 1 1 1 -
1 1 0 0 0 0 +1
1 1 0 0 0 1 -
0 1 x x x x +1 (Test)
1 0 x x x x none
1 1 1 x x x stored*
x = «0» or «1»
* Inputs BI and LT are internally wired to 1. An open
collector control circuit is needed.
Supply current in relation to supply voltage
Type VDC Ordering code
822, 24 V 822-057-21