MODEL: R3-SV8C
Remote I/O R3 Series

GENERAL SPECIFICATIONSDC VOLTAGE INPUT MODULE(8 points, isolated, wide span voltage up to ±50 V)
27.5 [1.08]

130[5.12]

109[4.29]
mm [inch]

MODEL: R3-SV8C[1][2]ORDERING INFORMATION• Code number: R3-SV8C[1][2]Specify a code from below for each of [1] and [2].
(e.g. R3-SV8CW/Q)• Specify the specification for option code /Q(e.g. /C01/SET)

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 input 5 toinput 6 to input 7 to input 8 to internal bus or internal power
Input range: Selectable with the side DIP SW (per 4channels)
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.

INPUT SPECIFICATIONS
Input: -50 – +50 V, -25 – +25 V, 0 – 50 V, 0 – 25 V
Input resistance: 1 MΩ min.

INSTALLATIONNO. OF CHANNELS

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)

8C: 8 points, wide span voltage up to ±50 V[1] COMMUNICATION MODE
S: Single
W: DualPERFORMANCE[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-8423)

Conversion accuracy: Refer to the table at the end of thissection.
Conversion rate: 160 / 80 / 40 / 20 msec. selectable
Data range: 0 – 10000 of the input range
Data allocation: 8Current consumption: 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 input 3 to input 4 to input 5 to input 6 to input 7 toinput 8 to internal bus or internal power)2000 V AC @ 1 minute (power input to FG; isolated on thepower supply module)
Conversion accuracy

CAUTIONRANGE■UNUSED INPUT CHANNELS
Set the unused channels to open. Otherwise, set them as"Unused" with PC Configurator software: R3CON.

RATE

All ranges

R3-SV8C SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

160 msec. 80 msec.
±0.1%
±0.2%

40 msec.
±0.4%

20 msec.
±0.8%

ES-8423 Rev.8 Page 1/3

MODEL: R3-SV8C
EXTERNAL VIEW
■ SIDE VIEW

■ FRONT VIEW
RUN LED
1516ERR LED

17Functions
SW1
12345678SW2
12345678ON

18

Input 1-4 (SW1)orInput 5-8 (SW2)19

SW3Range123420Conv.
Rate

212223ON

242526ON

2728

1234567891011121314EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
27.5 [1.08]

109 [4.29]
POSITIONINGGUIDE161718130 [5.12]

19202122232425262728123456728–M3SCREW

891011126.2[.24]151314TERMINAL
COVER

R3-SV8C SPECIFICATIONS

MG CO., LTD.
www.mgco.jpES-8423 Rev.8 Page 2/3

MODEL: R3-SV8C
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
RUN LED ERR LED DIP SW

Communication
Circuit+ 1
INPUT 1– 3

Input Circuit+ 4
INPUT 2– 6Input Circuit+ 7
Input CircuitINPUT 4
Input CircuitControlCircuit+ 15
Input Circuit

1116

INPUT 6
Input Circuit

19+ 2122

INPUT 7– 23814+ 18– 20

INTERNAL POWER

13INPUT 5– 17

INTERNAL BUS B*5+ 10– 12

INTERNAL BUS A

2INPUT 3– 9

BUS CONNECTOR

Input Circuit

Input Circuit

25+ 2427

INPUT 8– 2628

*For dual redundant communication.
DO NOT connect external wiring to the unused terminals.

Specifications are subject to change without notice.

R3-SV8C SPECIFICATIONS

MG CO., LTD.
www.mgco.jpES-8423 Rev.8 Page 3/3