MODEL: R3-DS4A

R3-DS4A SPECIFICATIONS

ES-8448 Rev.7 Page 1/4

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

Remote I/O R3 Series

4 – 20 mA INPUT MODULE

(2-wire transmitter exc. supply with switch; 4 points,

isolated)

109

(4.29)

27.5 (1.08)

130

(5.12)

mm (inch)

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 M-System's 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)