ES-1388 Rev.15
AD2LC
Plug-in Signal Conditioners M-UNIT
STRAIN GAUGE/DIGITAL CONVERTER
(16-bit resolution)
Functions & Features
• Accepting a bridge type strain gauge utilized in load cells, pressure transducers
• BCD, binary, reflected binary, two's complement outputs
• Open collector or CMOS for output levels
• Output and setting can be scaled in convenient engineering unit
• Output display
Typical Applications
• Interface of analog signal to computers and PLC
• Input to a digital panel meter
MODEL: AD2LC–[1][2]–[3][4]
ORDERING INFORMATION
• Code number: AD2LC-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. AD2LC-S1C-M2/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01)
[1] INPUT STRAIN GAUGE
S1
: 0.0 – 3.0 mV/V
S2
: 0.0 – 10.0 mV/V
S3
: 0.0 – 30.0 mV/V
[2] OUTPUT LEVEL
A
: Open collector (NPN)
C
: CMOS level
[3] POWER INPUT
AC Power
M2
: 100 – 240 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz)
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
P
: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)
[4] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
RELATED PRODUCTS
• Connector terminal block (model: CNT)
• Special cable (model: MCN26)
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
Input & power
: M3.5 screw terminals
Output
: 26-pin connector (OMRON XG4A-2634)
Paired connector
: OMRON XG4M-2630-T, XG5M-263x-N
Cover
: OMRON XG5S-2612
Screw terminal
: Chromated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output to power
Excitation adjustment
: 0.1 – 12.0 V (front)
Zero adjustment
: -99.99 – 99.99 % (front)
Gain adjustment
: 0.000 – 9.999 (front)
Tare adjustment
: -999.9 – 999.9 % (front or by contact input (Di))
Setting
: (Front key pad)
• Scaled range
• Moving average
• Output code
• Available number of bits
• POL/OVF output logic
• Data output logic
• HOLD input logic
• DAV output logic
• DAV output time
• Zero and gain adjustment
• Tare adjustment
• etc.
For detailed information, refer to the instruction manual.
■
DISPLAY
LED
: 7 mm (.28") 7 segment, red
Number of display digits
: 4 digits for DATA display; 2 digits for ITEM display
PV indication
: Output signal in engineering unit
Overrange indication
: LEDs blinking
Power saving mode
: Displays turn off if the keys are untouched for a preset time period
PL1 (POL) LED
: Red LED turns on at negative polarity.
PL2 (HOLD) LED
: Red LED turns on at HOLD.
INPUT SPECIFICATIONS
■
Strain Gauge Input
•
Strain Gauge
Sensor sensitivity
setting
S1: 0.010 - 3.000mV/V
S2: 0.010 - 9.999mV/V
S3: 0.10 - 30.00mV/V
Sensor sensitivity setting min. step
:
S1: 0.001 mV/V
S2: 0.001 mV/V
S3: 0.01 mV/V
Default setting
:
S1: 3.000 mV/V
S2: 9.999 mV/V
S3: 30.00 mV/V
Rated output from strain gauge
:
S1: -30.00 – +30.00 mV, span 1.00 – 30.00 mV
S2: -99.99 – +99.99 mV, span 3.00 – 99.99 mV
S3: -300.0 – +300.0 mV, span 10.0 – 300.0 mV
Input voltage setting min. step
:
S1: 0.01 mV
S2: 0.01 mV
S3: 0.1 mV
Note: Consult factory for use with a compression/tension load cells.
•
Excitation
: 0.1 – 12.0 V adjustable (0.1 V increments)
Maximum current
: 30 mA
Default setting
: 1.0 V
■
Contact Input
: TTL level (5V-CMOS level), open collector or dry contact (detecting voltage: approx. 5 V, saturation voltage: ≤ 1 V, sink current: 0.5 mA)
■ Hold Input
: TTL level (5 V - CMOS level)
Commands to stop data renewal;
Choose from below:
Hold with low or short
Hold with high or open
(detecting voltage: approx. 5 V, saturation voltage: ≤ 1 V, sink current: 0.5 mA)
OUTPUT SPECIFICATIONS
■
Output Code
: Code, logic and scaling are user-selectable.
BCD with polarity (Settable range: -9999 - 9999)
Binary with polarity (Settable range: -7FFF - 7FFF)
Offset binary (Settable range: 0000 - FFFF)
Two’s complement (Settable range: 8000 - 7FFF)
Reflected binary (Settable range: 0000 - FFFF)
Output code, logic, scaling are settable.
■
Available number of bits
Selectable from 8, 10, 12, 14, 16 bits
■
Output Level
•
Open Collector
Max. collector-emitter voltage
: 30 V DC
Max. collector current
: 30 mA
Saturation voltage
: ≤1.1 V
Common
: Negative
•
CMOS Level
H output
: ≥ 4.5 V DC
L output
: ≤ 0.5 V DC
Common
: Negative
■
POL output (Polarity)
: Same logic and level as for the output code; logic user-selectable
■
OVF output (Overflow)
: Same logic and level as for the output code; logic user-selectable
■
DAV output (Data available)
: Same level as for the output code; logic user-selectable
INSTALLATION
Power consumption
•
AC
: Approx. 10 VA
•
DC
: Approx. 7 W (300 mA at 24 V)
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 450 g (0.99 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.1 %
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F) of max. span
Resolution:
16 bits
Response time
: ≤ 1.5 sec. (0 – 90 %)
(Update period is less than or equal to 0.3 seconds. The update pauses by auto compensation for approx. 0.8 seconds at every 5 or 6 seconds. Response time should include that time.)
Excitation
: Set value ±150 mV
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @ 1 minute
(input to output to power)
2000 V AC @ 1 minute
(input or output or power to ground)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Installation Category II
Pollution Degree 2
Input to output to power: Basic insulation (300 V)
RoHS Directive
EXTERNAL VIEW
PARAMETER LIST
It is available to configure or confirm settings shown below by using front key pad.
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
■
Connection Examples
OUTPUT CONNECTOR (26-pin)
TIMING CHART
INPUT-OUTPUT RELATION EXAMPLES
• FS
-FS stands for 0 % of the input range configured by ITEM 06. +FS stands for +100 % of the input range, configured by ITEM 07.
• OVF
When one of the following conditions is true, the digital output overflows (OVF).
1) When the input signal is out of the range between -FS and +FS.
2) When the display value (= output signal) exceeds the display range.
The display range differs according to output code. For example, in case of BCD with polarity, it is -9999 to 9999. Please refer to the instruction manual for detail.