MODEL: R3-SS8N/SET: Preset according to the Ordering Information Sheet(No. ESU-8406)

Remote I/O R3 Series
DC CURRENT INPUT MODULE

CAUTION(8 points, non-isolated)■UNUSED INPUT CHANNELS
Set the unused channels to “Unused” with PC Configurator
software: R3CON. Unused channels left open may be equal
to the input lower than -15%, which sets a data abnormality
at the PLC or the host device.

27.5 [1.08]

130[5.12]

GENERAL SPECIFICATIONSConnection
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 or input 2 or input 3 or input 4 or input 5or input 6 or input 7 or input 8 to internal bus or internal
power
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 responsefailure);
Green in normal operating conditions.
■Recommended solderless terminal size - M3 (unit: mm)

109[4.29]
mm [inch]

MODEL: R3-SS8N[1][2]ORDERING INFORMATION• Code number: R3-SS8N[1][2]Specify a code from below for each of [1] and [2].
(e.g. R3-SS8NW/CE/Q)• Specify the specification for option code /Q(e.g. /C01/SET)NO. OF CHANNELS
8: 8

N: Non-isolated between inputs

3max[1] COMMUNICATION MODE

6max

ISOLATION

4min
3.2 dia.

S: SingleW: Dual

12max(mm)[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 (multiple selections)
COATING (For the detail, refer to our web site.)/C01: Silicone coating/C02: Polyurethane coating/C03: Rubber coating
EX-FACTORY SETTINGINPUT 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: 200 g (0.44 lb)

R3-SS8N SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-8406 Rev.11 Page 1/4

MODEL: R3-SS8N
PERFORMANCE
Conversion accuracy: Refer to the table at the end of thissection.
Conversion rate: 160 / 80 / 40 / 20 msec. selectable
Data range: 0 – 10000
Data allocation: 8Current consumption: 60 mA
Temp. coefficient: ±0.02 %/°C (±0.01 %/°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 or input 2 or input 3 or input 4 or input 5 or input 6or input 7 or input 8 to internal bus or internal power)2000 V AC @ 1 minute (power input to FG; isolated on thepower supply module)

Conversion accuracy
RANGE

RATE

4 – 20mA

160 msec.
±0.05%

80 msec.
±0.1%

40 msec.
±0.2%

20 msec.
±0.4%

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

EXTERNAL VIEW
■ FRONT VIEW

■ SIDE VIEW

RUN LED

ERR LED
111212313SW341454321156167178Conv.
Rate
ON

189191020R3-SS8N SPECIFICATIONS

MG CO., LTD.
www.mgco.jpES-8406 Rev.11 Page 2/4

MODEL: R3-SS8N
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
27.5 [1.08]

109 [4.29]
POSITIONING
GUIDE

121314151617181920

120–M3SCREW

234566.2[.24]

130 [5.12]

1178910TERMINALCOVER

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
RUN LED ERR LED DIP SW

CommunicationCircuit+ 1250Ω

INPUT 1– 2+ 3250Ω

INPUT 2– 4BUS CONNECTOR

Input Circuit
INTERNAL BUS A
INTERNAL BUS B*INTERNAL POWER+ 5250Ω

INPUT 3– 6+ 7250Ω

INPUT 4– 8ControlCircuit+ 11250Ω

INPUT 5– 12+ 13250Ω

INPUT 6– 14+ 15250Ω

INPUT 7– 16+ 17250Ω

INPUT 8– 181020919* For dual redundant communication.

R3-SS8N SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-8406 Rev.11 Page 3/4

MODEL: R3-SS8N
Specifications are subject to change without notice.

R3-SS8N SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-8406 Rev.11 Page 4/4