ES-8290 Rev.3

R3-DA8C

Remote I/O R3 Series

DISCRETE INPUT MODULE

(Di 8 points (3-wire), with external excitation supply)

MODEL: R3–DA8C[1][2]

ORDERING INFORMATION

• Code number: R3-DA8C[1][2]
Specify a code from below for each of [1] and [2].
  (e.g. R3-DA8CW/CE/Q)
• Specify the specification for option code /Q
  (e.g. /C01)

NO. OF CHANNELS

8: 8

INPUT

C: 3-wire input, with external excitation supply

[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 our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating

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 to internal bus or internal power
Excitation monitor: Selectable with side DIP switch; ON/OFF setting available
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 excitation abnormality;
Green in normal operating conditions.
Input status indicator:
  1 to 8: Red LED; Turns on with the input supplied.
  9 to 16: Unused
Read rate: 1 / 5 / 10 / 20 / 50 / 70 / 100 / 200 msec. selectable with DIP SW

INPUT SPECIFICATIONS

Number of input: 8 points
Maximum inputs applicable at once: No limit (at 24 V DC)
Isolation: Optical isolator
Input resistance: Approx. 4.4 kΩ
Common: Positive or negative common (NPN/PNP) per 8 points (3-wire)
Rated input voltage: 24 V DC +10/-15 % (ripple 5 %p-p max.)
Rated input current: Approx. 5 mA (24 V DC)
ON voltage/current: ≥ 11 V, ≥ 2.5 mA
OFF voltage/current: ≤ 6 V, ≤ 1.3 mA
External excitation current: ≤ 1 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: 170 g (0.37 lb)

PERFORMANCE

Data allocation: 1
Current consumption: 40 mA
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute
(input 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

FUNCTIONS

Excitation Monitor ON
The input is held at the last status when the loss of excitation is detected. The excitation must be connected across the terminal 9 (19) and 10 (20).
Excitation Monitor OFF
All input signals are turned off when the loss of excitation is detected.

EXTERNAL VIEW

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM