MODEL: R3-LC2
Internal power: Via the Installation Base (model: R3-BSx)
Screw terminal: Nickel-plated steel
Remote I/O R3 Series
Isolation: Input 1 to input 2 to contact input 1 to contact
input 2 to internal bus or internal power
Input range: Selectable with the side DIP SW
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 abnormality;
STRAIN GAUGE INPUT MODULE
(2 points, isolated)
27.5 (1.08)
130
(5.12)
Green in normal operating conditions.
109
(4.29)
mm (inch)
INPUT SPECIFICATIONS
■ Strain Gauge Input
MODEL: R3-LC2[1][2]
•Strain Gauge
Rated output from strain gauge:
0.0 – 1.0 mV/V (-5.0 – +5.0 mV, span 1.0 – 10 mV)
0.0 – 3.0 mV/V (-15.0 – +15.0 mV, span 5.0 – 30 mV)
•Excitation: 5 V
ORDERING INFORMATION
• Code number: R3-LC2[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-LC2W/Q)
Maximum current: 60 mA
Load resistance: 85 Ω minimum
■ Contact Input
• Specify the specification for option code /Q
(e.g. /C01/SET)
Number of input: 3 points (zero, span, tare adjustments) per
input channel, 6 points in total
Isolation: Optical isolator + transformer (internal power
supply)
NO. OF CHANNELS
2: 2
Input resistance: Approx. 5.9 kΩ
Common: Negative commons, every 3 points
Contact detecting: 13 V DC
[1] COMMUNICATION MODE
S: Single
(max. 24 V DC with no load)
ON current/resistance: ≥ 1.5 mA, ≤ 1.5 kΩ
OFF current/resistance: ≤ 0.75 mA, ≥ 18 kΩ
Detection levels
W: Dual
[2] OPTIONS
blank: none
ON: ≥ 10 V
/Q: With options (specify the specification)
OFF: ≤ 4 V
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
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)
/C02: Polyurethane coating
/C03: Rubber coating
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
(No. ESU-8371)
GENERAL SPECIFICATIONS
Connection
Internal bus: Via the Installation Base (model: R3-BSx)
Input: M3 separable screw terminal (torque 0.5 N·m)
R3-LC2 SPECIFICATIONS
ES-8371 Rev.4 Page 1/3
http://www.m-system.co.jp/