·Some details are not shown. Please refer to specification sheets for all information.

R3-WTU

Remote I/O R3 Series

MULTI POWER INPUT MODULE
(clamp-on current sensor type CLSE use)

Functions & Features
• Measures simultaneously several variables of a heavy-current power system including computing bidirectional current, phase and harmonics
• 1 or 2 systems
• Uses clamp-on current sensors; No need of current transformers
• Current sensors are easy to install in existing systems
Typical Applications
• Energy demand management in manufacturing
plants and buildings
• Multi-functional power monitor incorporated in electric devices or in switching boards: saves space, wiring works, and cost
 

MODEL: R3–WTU1[1]ES[2]

ORDERING INFORMATION
• Code number: R3-WTU1[1]ES[2]
Specify a code from below for each [1] and [2].
  (e.g. R3-WTU12ES/D/Q)
• Specify the specification for option code /Q
  (e.g. /C01)

CONFIGURATION
1: Single-phase / 2-wire and 3-wire, 
    3-phase / 3-wire and 4-wire

[1] NO. OF SYSTEMS
1: 1 system
2: 2 systems

INPUT
E: 480 V AC / Sensor type CLSE

COMMUNICATION MODE
S: Single

[2] OPTIONS (multiple selections)
Data Capacity (address/slot occupied)
blank: 16 words (1)
/D: 32 words (2)
Be sure to use the R3-BSW base with free address setting
capability. Refer to ‘TRANSMISSION DATA DESCRIPTIONS.’
Other Options
blank: none
/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating

RELATED PRODUCTS
• PC configurator software (model: R3CON)
Downloadable at M-System’s web site.
• Clamp-on current sensor (model: CLSE)
The clamp-on current sensors, not included in this product package, must be ordered separately. Required number depends upon the system configuration.
• Network module (model: R3-Nx)
In order to have the reset function from the host device, use V.2.00 or higher versions of the R3-NC1, -NC3, -NE1 and -NM1. With other versions and models, the resetting is possible using the R3CON PC Configurator.
For use with the R3-NLx, consult M-System.

GENERAL SPECIFICATIONS
Connection
  Internal bus
: Via the Installation Base (model: R3-BSx)
  Voltage input: Separable terminal block
  (applicable wire dia. ≤ 2.5, 0.5 – 3.5 mm2, stripped
  length 7 mm)
  Current input: Separable terminal block
  (applicable wire dia. ≤ 2.4, 0.5 – 3.5 mm2, stripped
  length 10 mm)
  Internal Power: Via the Installation Base (model: R3-BSx)
Configuration: Single phase/2-wire and 3-wire, 3-phase/3-wire balanced/unbalanced load, 3-phase/4-wire balanced/unbalanced load
Isolation: Sensor core to sensor output or current input or voltage input to internal bus or internal power
Measured variables
  Voltage
: 1 – N, 2 – N, 3 – N, 1 – 2, 2 – 3, 3 – 1
  Current: 1, 2, 3, N
  Active / reactive / apparent power: 1, 2, 3, Σ
  Power factor: 1, 2, 3, Σ
  Frequency
  Active energy
: Incoming / outgoing
  Reactive energy: Incoming / outgoing / lag (inductive)
  /lead (capacitive)
  Apparent energy
  Active / reactive / apparent power intervals (demand) 
  Average (demand) current: 1, 2, 3, N
  Harmonic contents: Σ
  Voltage: 1 – N, 2 – N, 3 – N, 1 – 2, 2 – 3, 3 – 1
  Current: 1, 2, 3, N
  Max. and min. values
  Demand history
: 1 to 4
  (Programmable within 1 – 60 min.; factory set to 30 min.)
RUN indicator: Bi-color (red/green) LED;
Red when the internal bus operates normally.
ERR indicator: Bi-color (red/green) LED;
Red with the input abnormality (input ≥ 120 %, frequency out of 45 – 65 Hz range);
Green in normal operating conditions.
Low-end cutout: Converted as 0 % for the input below a preset value; programmable within 0 – 99.9 %; factory set to 1 %
Data resetting: All energy values, MAX / MIN current values, MAX / MIN values other than current, AVG (demand) values
(The resetting from the host is possible by using V.2.00 or higher versions of the R3-NC1, -NC3, -NE1 and -NM1.)

INPUT SPECIFICATIONS
Frequency: 50 / 60 Hz (45 – 65 Hz)
Voltage Input
Rated voltage
Line-to-line (delta voltage): 480 V
Line-neutral (phase voltage): 277 V (single-phase / 2-wire and 3-wire)
Consumption VA: ≤ ULN2 / 300 kΩ / phase
Overload capacity: 200 % of rating for 10 sec., 120 % continuous
Selectable primary voltage range: 50 – 400 000 V
Current Input
CLSE-R5
: 0 – 5 A AC
CLSE-05: 0 – 50 A AC
CLSE-10: 0 – 100 A AC
CLSE-20: 0 – 200 A AC
CLSE-40: 0 – 400 A AC
CLSE-60: 0 – 600 A AC
Overload capacity: 120 % continous, 500 % for 10 sec.
(Note: Use for the circuit not exceed 480 V)
Selectable primary current range: 1 – 20 000 A (only with CLSE-R5, refer to the configurator settings)
Operational range
Current
: 0 – 115 % of the rating
Voltage, apparent power: ≤ 120 % of the rating
Active/reactive power: ±120 % of the rating
Frequency: 45 – 65 Hz
Power factor: ±1

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)
Use the R3-BSW with Option /D.
Weight: 170 g (0.37 lb)

PERFORMANCE in percentage of span
Accuracy (at 23°C ±10°C or 73.4°F ±18°F, 45 – 65 Hz)
Add the accuracy of the current sensor for overall values.
  Voltage: ±1.0 % of the rating
  Current: ±1.0 % of the rating
  Power: ±1.0 % of the rating
  Power factor: ±3.0 %
  Frequency: ±1.0 % of the rating
  Energy: ±2 %
  Harmonic contents: ±2.5 % of the rating
Conversion data: 16 bits / 32 bits
Data allocation mode: 16 or 32
(Refer to ‘TRANSMISSION DATA DESCRIPTIONS.’)
Current consumption: 60 mA
Input response time: ≤ 2 sec. (0 – 100 % ±1 %)
≤3 sec. for frequency and harmonic contents
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute (voltage input or current input to internal bus or internal power)
2000 V AC @ 1 minute (sensor core to sensor output)
2000 V AC @ 1 minute (power input to FG; isolated on the power supply module)

TRANSMISSION DATA DESCRIPTIONS
MEASURANDS
• 16-word Mode (standard)
Measurands and assigned word numbers are specified using the R3CON PC Configurator.
Max. 16 words per module (slot). 1 word = 16 bits, 2 words
= 32 bits
• 32-word Mode (option /D)
Measurands and assigned word numbers are specified using the R3CON PC Configurator.
Max. 32 words by virtually assigning addresses (n) and (n+1) per module. 1 word = 16 bits, 2 words = 32 bits
Be sure to use the R3-BSW base with free address setting capability. DO NOT assign the address (n+1) to any module.
A duplicate address will cause malfunctions.
RESET
Measurands to be reset can be specified among: all energy values, MAX / MIN current values, MAX / MIN values other than current and AVG (demand) values.
Refer to ‘I/O DATA DESCRIPTIONS’ in the R3-WTU instruction manual for resetting from the host device.
For detailed information for the selection of measurands and other settings, refer to the R3CON Users Manual.

EXTERNAL VIEW

DIMENSIONS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

MG Co., Ltd.