ES-9730 Rev.5

R8-SS2

Remote I/O R8 Series

DC CURRENT INPUT MODULE

(2 points, isolated)
Functions & Features
• 2 channels for DC current input, compact size remote I/O module
• Isolation between channels
• Input range adjustment with DIP switch or PC configurator

MODEL: R8–SS2[1]

ORDERING INFORMATION

• Code number: R8-SS2[1]
Specify a code from below for [1].
  (e.g. R8-SS2/Q)
• Specify the specification for option code /Q
  (e.g. /C01)

[1] OPTIONS

blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating

RELATED PRODUCTS

• PC Configurator cable (model: MCN-CON or COP-US)
• PC configurator software (model: R8CFG)
Downloadable at our web site.

GENERAL SPECIFICATIONS

Connection
• Input: 4-pin e-CON connector
   Unit side connector XN2D-1474-S002 (Omron)
   Recommended cable side connector XN2A-1470 (Omron)
   Applicable wire size: 0.08 - 0.5 mm2 (AWG28 - 20)
   Outer sheath diameter: max. 1.5 dia
   (The cable side connector is not included in the package.
   Refer to the specifications of the product.)
• Excitation supply, internal bus:
   Connected to internal bus connector
• Internal power: Supplied from internal bus connector
Isolation: Input 1 to input 2 to exc. supply to internal bus or internal power
Input range: Selectable with the side DIP SW
Module address: With rotary switch
Terminating resistor: Built-in (DIP Switch, default: disable)
Configuration mode: With DIP switches on the side panel
Status indicator: Bi-color (red/green) LED; Refer to the instruction manual.
Input status indicators: Red LED; Refer to the instruction manual.

INPUT SPECIFICATIONS

Input range: -20 – +20 mA DC configurable
Operational range: ：-5 - +105 % (in percentage of input range)
Input resistance: 100 Ω

INSTALLATION

Max. current consumption: 100 mA
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: DIN rail
Weight: 60 g (2.12 oz)

PERFORMANCE

Conversion accuracy (in percentage of input range)
±0.1 % (@ input range -20 - +20 mA)
Conversion accuracy is inversely proportional to input span.
  Conversion accuracy computation example:
  When input range is 4 - 20 mA: conversion accuracy = nominal input span (40 mA) ÷ input span (16 mA) × 0.1 (%) = 0.25 (%).
Nominal input span is the same as the span at input range 
-20 - +20 mA DC.
Conversion rate: 2 msec.
Input circuit time constant: Approx. 1 msec.
Data range: 0 – 10000 of the input range
Data allocation: 2
Module addresses in use: 1
Max. consumption current: 100 mA
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength:
  1000 V AC @ 1 minute (input 1 to input 2 to exc. supply to internal bus or internal power to FG)
  1000 V AC @ 1 minute (for modules combined with this device) 

STANDARDS & APPROVALS

EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
RoHS Directive

EXTERNAL VIEW

OPERATING MODE SETTING

(*) Factory default setting
Note: Be sure to set unused SW4-3 through 4-7 to OFF.

EXTERNAL DIMENSIONS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM