ES-1601 Rev.14
AS4LC
Plug-in Signal Conditioners M-UNIT
STRAIN GAUGE ALARM
(dual or quad alarm trip; field-configurable)
Functions & Features
• Accepts a bridge type strain gauge utilized in load cells, pressure transducers
• Quad or dual trip
• Setting and display in engineering unit values
• Setpoint adjustments with the front keypad
• Software lock
• Adjustable hysteresis (deadband)
• On-delay timer
• Hi/Lo trip and energized/de-energized coil independently selectable for each setpoint
• Enclosed relays
• Relays can be powered by 200 V AC and 100 V DC
• High-density mounting on DIN rail
Typical Applications
• Annunciator
• Various alarm applications
MODEL: AS4LC–[1][2]–[3][4]
ORDERING INFORMATION
• Code number: AS4LC-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. AS4LC-S12-R/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01/SET)
[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
2:
4 points; N.O. or make contact
3:
4 points; N.C. or break contact
5:
2 points; SPDT or transfer contact
[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
EX-FACTORY SETTING
/SET
: Preset according to the Ordering Information Sheet
(No. ESU-1601)
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals
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
: -19.99 – 99.99 % (front)
Gain adjustment
: 0.000 – 9.999 (front)
Tare adjustment
: -199.9 – 999.9 % (front or by contact input (Di))
Sampling cycle:
100 msec.
User-configurable items
: Front key pad
• Alarm setpoint
• Display range scaling
• Power ON-delay time
• Alarm ON-delay time
• Moving average
• Hi/Lo trip operation
• Coil at alarm
• Hysteresis (deadband)
• Sensor sensitivity
• Contact input (Tare adjustment, Peak hold, Valley hold, Sample hold)
• 0 %, 100 % input setting
• Others
(Refer to the instruction manual)
■ DISPLAY
LED
: 8 mm (.31”) 7 segment, red
Number of display digits:
4 digits for DATA display; 2 digits for ITEM display
Range:
-1999 to 9999
(decimal point position selectable)
PV indication:
Input signal in engineering unit
Overrange indication:
LEDs blinking
Power saving mode:
Displays turn off if the keys are untouched for a preset time period
LEDs:
Red LEDs turn on when coils are energized.
(PL1 and PL2 for 2-point alarm. PL1, PL2, PL3 and PL4 for 4-point alarm.)
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)
OUTPUT SPECIFICATIONS
Relay rating:
120 V AC @ 1 A (cos ø = 1)
240 V AC @ 0.5 A (cos ø = 1)
30 V DC @ 1 A (resistive load)
(Limited within 0.5 A to conform with EU Directive)
Maximum switching voltage:
380 V AC or 125 V DC
Maximum switching power:
120 VA or 30 W
Minimum load:
5 V DC @ 10 mA
Mechanical life:
5 × 10
7
cycles
INSTALLATION
Power consumption
•
AC
:
Approx. 11 VA
•
DC
: Approx. 8 W
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 500 g (1.1 lb)
PERFORMANCE in percentage of span
Setpoint accuracy (trip point accuracy)
: ±(0.1 % of FS + 1 digit)
Display accuracy
: ±(0.1 % of FS + 1 digit)
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F) of max. span
Response time
: ≤ 1.5 sec. (0 – 100 % at 90 % setpoint)
Excitation
: Set value ±250 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 to ground)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Measurement Category II (output)
Installation Category II (power)
Pollution Degree 2
Input to output to power: Basic insulation (300 V)
RoHS Directive
EXTERNAL VIEW
Refer to the instruction manual for detailed procedures.
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM