ES-8431 Rev.10
R3-AT4
Remote I/O R3 Series
THERMOCOUPLE INPUT ALARM MODULE
(4 points, isolated)
MODEL: R3-AT4[1][2]
ORDERING INFORMATION
• Code number: R3-AT4[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-AT4W/CE/Q)
• Specify the specification for option code /Q
(e.g. /C01)
NO. OF CHANNELS
4
: 4
[1] COMMUNICATION MODE
S
: Single
W
: Dual
[2] OPTIONS (multiple selections)
Standards & Approvals
blank
: Without CE
/CE
: CE marking
Other Options
blank
: none
/Q
: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
GENERAL SPECIFICATIONS
Connection
Internal bus
: Via the Installation Base (model: R3-BSx)
Input
: M3 separable screw terminal (torque 0.5 N·m)
Internal power
: Via the Installation Base (model: R3-BSx)
Screw terminal
: Nickel-plated steel
Isolation
: Input 1 to input 2 to input 3 to input 4 to internal bus or internal power
Sensor type
: Selectable with the side DIP SW
Temperature unit
: °C, °F or absolute temperature selectable with the side DIP SW
Conversion rate
: Selectable with the side DIP SW
Burnout detection:
Upscale or downscale selectable with the side DIP SW
Linearization
: Standard
Cold junction compensation
: CJC sensor attached to the
input terminals
RUN indicator
: Bi-color (red/green) LED;
Red when the bus A operates normally;
Green when the bus B operates normally;
Amber when both buses operate normally.
ERR indicator
: Bi-color (red/green) LED;
Red with burnout; Green in normal operating conditions.
INPUT SPECIFICATIONS
Input resistance
: 30 kΩ min.
Burnout sensing
: 0.1 μA
INSTALLATION
Operating temperature
: -10 to +55°C (14 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Atmosphere
: No corrosive gas or heavy dust
Mounting
: Installation Base (model: R3-BSx)
Weight
: 200 g (0.44 lb)
PERFORMANCE
Conversion accuracy
: ±1.0°C (±1.8°F) except ±2.0°C (±3.6°F) for B, R, S, C, PR
Conversion rate
: 250 msec. or 1 sec. selectable
Data allocation
: 1
Current consumption
: 70 mA
Cold junction compensation error
:
±1.0°C max. (at 25°C ±10°C)
±1.8°F max. (at 77°F ±18°F)
(±1.5°C or ±2.7°F for R, S, PR)
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F)
Burnout response time:
≤ 2 sec.
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 1500 V AC @ 1 minute (input 1 to input 2 to input 3 to input 4 to internal bus or internal power)
2000 V AC @ 1 minute (power input to FG; isolated on the power supply module)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
ALARM SETTING
The following parameters are programmable using the PC Configurator Software (model: R3CON).
■
ALARM TRIP POINT
(-270.0 to +2400.0°C or -454 to +4352°F;
factory set to A1: 400.0°C, A2: 300.0°C, A3: 200.0°C,
A4: 100.0°C)
Four alarm setpoints are selectable per each input.
■
ALARM TYPE
(High or Low; factory set to A1: High, A2: High, A3: Low,
A4: Low)
High or Low alarm is selectable for each alarm trip point.
High alarm
: An alarm is set when the input signal goes above the setpoint.
Low alarm
: An alarm is set when the input signal goes below the setpoint.
■
DEADBAND (HYSTERESIS)
(0.0 to 900.0°C or 0 to 1620°F; factory set to 10.0°C or 100°F)
Deadband (deviation between the points where the alarm is set and reset) is selectable for each alarm trip point.
■
ALARM ON DELAY TIME
(0.0 to 99.0 seconds; factory set to 1.0)
The alarm output is set when the preset time elapses after the input has entered in the alarm range.
This setting is common to all four points.
■
POWER ON DELAY TIME
(0.0 to 99.0 sec.; factory set to 5.0)
The alarm output start functioning in the preset time after the power has been turned on.
This setting is common to all four points.
■
ALARM HOLD TIME
(0.0 to 99.0 seconds; factory set to 1.0)
The alarm output is held for the preset time even if it is reset in shorter time.
This setting is common to all four points.
EXTERNAL VIEW
OUTPUT DATA DESCRIPTIONS
Four alarm setpoints are selectable per each input. One (1) word (16 bit) data is transmitterd to the PLC or the host device via the R3 network module.
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM