ES-9694 Rev.2

R8-FST4N

Remote I/O R8 Series

DC VOLTAGE/CURRENT INPUT MODULE

(built-in excitation, 4 points, non-isolated)
Functions & Features
• DC current input and DC voltage input compact size remote I/O module
• Switching between current input and voltage input with  PC configurator (model: R8CFG) 
• Accepts direct input from power output as sensor power and outputs from terminals
• Each channel is atachable/detachable independently with separable tension clamp terminal.

MODEL: R8-FST4N[1]

ORDERING INFORMATION

• Code number: R8-FST4N[1]
 Specify a code from below for [1].
  (e.g. R8-FST4N/Q)
• Specify the specification for option code /Q
  (e.g. /C01)

[1] OPTIONS

blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating

RELATED PRODUCTS

• PC configurator software (model: R8CFG)
The configurator software is downloadable at our web site.
A dedicated cable is required to connect the module to the PC.  Please refer to the users manual for the PC configurator for applicable cable types.

GENERAL SPECIFICATIONS

Connection
 • Input: Tension clamp
 • Excitation supply, internal bus:
    Connected to internal bus connector
 • Internal power: Via bus connector
Isolation: Input or exc. supply to internal bus or internal power
Input type: Configuration mode that selectable between current input and voltage input and available to configure scaling individually for each 4 points with configurator software (model: R8CFG) and fixed input mode that selectable between 0 - 10 V DC and 4 - 20 mA DC individually for each 4 points are available.
Module address: With rotary switch
Terminating resistor: Built-in (DIP Switch, default: disable)
Status indicator: Bi-color (red/green) LED; Refer to the instruction manual.
Input status indicators: Red LED; Refer to the instruction manual.

INPUT SPECIFICATIONS

■ DC Voltage:
• Configuration mode
  Input range: -10 – +10 V DC
  Input setting value: Available to set in the input range
  Operational range: -5 - +105 % (% of input setting value)
  Input resistance: ≥ 1 MΩ
• Fixed input mode
  Input range: 0 – 10 V DC
  Input setting value: Available to set in the input range
  Operational range: -5 - +105 % (% of input setting value)
  Input resistance: ≥ 1 MΩ
■ DC Current:
• Configuration mode
  Input range: -20 – +20 mA DC
  Input setting value: Available to set in the input range
  Operational range: -5 - +105 % (% of input setting value)
  Input resistance: 50 Ω (1/4 W)
• Fixed input mode
  Input range: 4 – 20 mA DC
  Input setting value: Available to set in the input range
  Operational range: -5 - +105 % (% of input setting value)
  Input resistance: 50 Ω (1/4 W)
Factory default (Input type and input setting value):
Voltage input, input range -10 - +10 V DC for all 4 points.

INSTALLATION

Max. current consumption: 100 mA
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: DIN rail
Weight: 80 g (0.18 lb)

PERFORMANCE

Conversion accuracy (in percentage of input range)
Voltage input:±0.05 %
Current input:±0.1 %
Conversion accuracy is inversely proportional to input span.
Conversion rate: 8 msec.
Input circuit time constant: Approx. 1 msec.
Data range: 0 – 10000 of the input range
(Scaling of converted data is configurable with the configurator software)
Data allocation: 2
Module addresses in use: 2
Power output (input connector): Rated current 0.5 A DC per channel (rated current 3 A for internal fuse (slow blow fuse i2t (A2sec.) max. 5.04); Total: 1 A DC
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @ 1 minute
(input or exc. supply to internal bus or internal power to ground)

CALCULATION EXAMPLES OF CONVERSION ACCURACY

■ Voltage input:
For input setting value 1 - 5 V DC
Conversion accuracy = Input range span (20 V) ÷ input setting value span (4 V) × 0.05 (%) = 0.25 (%)
■ Current input:
For input setting value 4 - 20 mA DC
Conversion accuracy = Input range span (40 mA) ÷ input setting value span (16 mA) × 0.1 (%) = 0.25 (%)
(Span is common for configuration mode and fixed input mode)

STANDARDS & APPROVALS

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

EXTERNAL VIEW

WIRING

• TENSION CLAMP
Unit side connector: Tension clamp
Cable side connector: DFMC1,5/2-ST-3,5 (Phoenix Contact) (included in the package)
Applicable wire size: 0.2 - 1.5 mm2
Stripped length: 10 mm
Recommended solderless terminal
 • AI0,25-10YE 0.25 mm2 (Phoenix Contact)
 • AI0,34-10TQ 0.34 mm2 (Phoenix Contact)
 • AI0,5-10WH 0.5 mm2 (Phoenix Contact)
 • AI0,75-10GY 0.75 mm2 (Phoenix Contact)
 • A1-10 1.0 mm2 (Phoenix Contact)
 • A1,5-10 1.5 mm2 (Phoenix Contact)

OPERATING MODE SETTING

(*) factory default setting
Note: Be sure to set unused SW4-5 through 4-7 to OFF.

EXTERNAL DIMENSIONS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM