ES-8448 Rev.8
R3-DS4A
Remote I/O R3 Series
4 – 20 mA INPUT MODULE
(2-wire transmitter exc. supply with switch; 4 points, isolated)
MODEL: R3-DS4A[1][2]
ORDERING INFORMATION
• Code number: R3-DS4A[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-DS4AW/Q)
• Specify the specification for option code /Q
(e.g. /C01/SET)
NO. OF CHANNELS
4A
: 4 channels, (with excitation supply switches)
[1] COMMUNICATION MODE
S
: Single
W
: Dual
[2] 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
EX-FACTORY SETTING
/SET
: Preset according to the Ordering Information Sheet
(No. ESU-8368)
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
Excitation supply switches
: DIP switches (front)
Conversion rate
: Selectable with the side DIP SW
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 input circuit abnormality (AD converter response failure);
Green in normal operating conditions.
SUPPLY OUTPUT
(across the terminals 1 – 2, 3 – 4, 6 – 7 and 8 – 9)
Output voltage
: 24 – 28 V DC with no load
16 V DC min. at 22 mA
Current rating
: ≤ 22 mA DC
∙Shortcircuit Protection
Current limited
: Approx. 30 mA
Protected time duration
: No limit
INPUT SPECIFICATIONS
■
DC Current
: 4 – 20 mA DC
Input resistance
: 250 Ω resistor incorporated
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
: 250 g (0.55 lb)
PERFORMANCE
Conversion accuracy
: Refer to the table at the end of this section.
Conversion rate
: 80 / 40 / 20 / 10 msec. selectable
(factory default: 80 msec.)
Data range
: 0 – 10000
Data allocation
: 4
Current consumption
: 210 mA
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F)
Response time
: ≤ 0.2 sec. (0 – 90 %)
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)
EXTERNAL VIEW
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM