ES-8386 Rev.11

R3-PA2

Remote I/O R3 Series

ENCODER INPUT MODULE

(RS-422 input; alarm output)

MODEL: R3-PA2[1][2]

ORDERING INFORMATION

• Code number: R3-PA2[1][2]
Specify a code from below for each of [1] and [2].
  (e.g. R3-PA2W/CE/Q)
• Specify the specification for option code /Q
  (e.g. /C01/SET)

NO. OF CHANNELS

2: 2

[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 (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-8386)

GENERAL SPECIFICATIONS

Connection
 Internal bus
: Via the Installation Base (model: R3-BSx)
 Input, Output: 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 internal bus or internal power
Alarm output: Two outputs per channel available; setpoints are programmable for the speed or the position data by using the R3CON PC Configurator software.
DIP switch settings:
•Input range
•Count Mode
•Alarm Contact Form
•Start Count
(Refer to the instruction manual)
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: Green LED turns on in normal operating conditions.
Low-end cutout: 0.1 %
Reset input: Position data reset to ‘0’ when the external contact is closed. (Reset count can be changed using the R3CON PC Configurator software.)

INPUT SPECIFICATIONS

Input: RS-422 line driver, two-phase pulse (Up/down count is not performed correctly by either phase A or phase B input)
ENCODER PULSE INPUT
Input range
: 0 – 100 kHz, 0 – 10 kHz, 0 – 1 kHz, 0 – 100 Hz, 0 – 10 Hz, 0 – 1 Hz, 0 – 0.1 Hz
Minimum pulse width requirement: 5 μsec. for both ON and OFF
Reset Input (contact input)
Number of input
: 1 contact per input (2 in total)
Isolation: Optical isolator + transformer (internal excitation supply)
Input resistance: Approx. 5.9 kΩ
Common: Negative (2 terminals)
Sensing voltage: 13 V DC (max. 24 V with no load)
ON current/voltage: ≥ 1.5 mA (≥ 9V)
OFF current/voltage: ≤ 0.75 mA (≤ 4.5V)

OUTPUT SPECIFICATIONS

ALARM OUTPUT (open collector)
Number of input
: 2 contacts per input (4 in total)
Isolation: Optical isolator
Rated load voltage: 24 V DC ±10 %
Max. load current: 0.1 A per point
Max. rush current: 0.5 A, ≤ 10 msec.
Leakage current at OFF: ≤ 0.1 mA
Max. voltage drop at ON: 0.6 V DC typical, 1.2 V DC maximum
Common: Negative (2 terminals)
Common current: Max. 16 A per common

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)

PERFORMANCE

Speed conversion accuracy: ±0.1 %
Speed data range: 0 – 10000 of the input range
Position data range: -100 000 000 to +100 000 000
Data allocation: 8
Current consumption: 80 mA
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @ 1 minute (input 1 to input 2 to internal bus or internal power)
2000 V AC @ 1 minute (power input to FG; isolated on the power supply module)

STANDARDS & APPROVALS

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

EXTERNAL VIEW

I/O DATA DESCRIPTIONS

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM