MODEL: R3-AS8

R3-AS8 SPECIFICATIONS

ES-8440 Rev.7 Page 1/4

https://www.m-system.co.jp/

Remote I/O R3 Series

DC CURRENT INPUT ALARM MODULE

(8 points, isolated)

109

[4.29]

27.5 [1.08]

130

[5.12]

mm [inch]

MODEL: R3-AS8[1][2]

ORDERING INFORMATION

• Code number: R3-AS8[1][2]

Specify a code from below for each of [1] and [2].

(e.g. R3-AS8W/CE/Q)

• Specify the specification for option code /Q

(e.g. /C01)

NO. OF CHANNELS

8: 8

[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 M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating

CAUTION

■UNUSED INPUT CHANNELS

Set the unused channels to -20 – +20 mA or 0 – 20 mA

range. Otherwise, set them as "Unused" with PC

Configurator software: R3CON. Unused channels left open

with 4 – 20 mA setting are equal to the input lower than -15

%, which sets a data abnormality at the PLC or the host

device.

Open circuit with the input range set to ±20 mA means 50

% of the full-scale. An alarm setpoint must be set to a value

that does not trip an unwanted alarm.

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 input 5 to

input 6 to input 7 to input 8 to internal bus or internal power

Input range: Selectable with the side DIP SW (per 4

channels)

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.

INPUT SPECIFICATIONS

■ DC Current: -20 – +20 mA, 0 – 20 mA, 4 – 20 mA DC

Input resistance: 66.5 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)