ES-8385 Rev.6
R3-WT4A
Remote I/O R3 Series
AC POWER INPUT MODULE
(4 input circuits, clamp-on current sensor type CLSA use)
MODEL: R3-WT4A[1][2][3][4]
ORDERING INFORMATION
• Code number: R3-WT4A[1][2][3][4]
Specify a code from below for each of [1] through [4].
(e.g. R3-WT4A11W/Q)
• Specify the specification for option code /Q
(e.g. /C01)
NO. OF CHANNELS
4A
: 4 channels, Sensor type CLSA
[1] CONFIGURATION
1
: 3-phase / 3-wire
2
: Single-phase / 2-wire
3
: Single-phase / 3-wire
[2] INPUT (unbalanced load)
1
: 110 V AC / 80 A
2
: 110 V AC / 120 A
5
: 220 V AC / 80 A
6
: 220 V AC / 120 A
A
: 200 V AC / 80 A (single-phase/3-wire)
B
: 200 V AC / 120 A (single-phase/3-wire)
[3] COMMUNICATION MODE
S
: Single
W
: Dual
[4] 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
/C03
: Rubber coating
RELATED PRODUCTS
• PC configurator software (model: R3CON)
The R3CON is used to set up the software setting of this module. Downloadable at our web site.
• Clamp-on current sensor (model: CLSA-08)
• Clamp-on current sensor (model: CLSA-12)
• Special cable (model: CLSA-08C)
Note: The clamp-on current sensor, not included in the product package of the R3 module, must be ordered separately. Refer to the data sheet for the sensor for more information such as applicable wire diameter.
GENERAL SPECIFICATIONS
Connection
Internal bus
: Via the Installation Base (model: R3-BSx)
Input
: M3.5 screw terminals (torque 0.8 N·m)
Internal power
: Via the Installation Base (model: R3-BSx)
Screw terminal
: Nickel-plated steel
Isolation
: Sensor core to sensor output or current input or internal bus or internal power to voltage input
Computation
: Time division multiplication
DIP switch settings
:
• Measuring variables
• Computation methods
• Count Reset (Disable/Enable)
• Others
Refer to the instruction manual for details.
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;
Green in normal operating conditions.
Power ON timer
: Starts conversion in 10 seconds after the power is turned on.
Low-end cutout
: Converted data forced to 0 % for 2 % or less input. (Selectable by using R3CON)
INPUT SPECIFICATIONS
Frequency
: 50 or 60 Hz
•
Voltage Input
Operational range
: 0 – 120 % of rating
Overload capacity
: 150 % of rating for 10 sec., 120 % continuous
•
Current Input
Range
CLSA-08
: 0 – 80 A AC
CLSA-12
: 0 – 120 A AC
Operational range
: 0 – 115 % of rating
Be sure that the input voltage is of 440 V or less.
■
Active Power Input Range
Choose VT ratio so that the calibration range calculated by the following equation is within the usable range in the next table.
Calibration Range [W] = Measuring Wattage [W] ÷ [(VT Ratio) × (Current Rating)]
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
: 350 g (0.77 lb)
PERFORMANCE
Accuracy
(at 23°C ±10°C or 73.4°F ±18°F, 45 – 65 Hz)
Active power
: ±2 %
Active energy
: ±2 %
Magnetic field (ext. origin) effect:
± 0.5 % (400 A/m)
Conversion rate
: 100 msec.
Conversion data
: 16 bits / 32 bits
Data allocation
: 4, 8 or 16 selectable
Current consumption
: 150 mA
Response time
: ≤ 2 sec. (0 – 100 % ±1 %)
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @ 1 minute (voltage input to current input or internal bus or internal power)
2000 V AC @ 1 minute (power input to FG; isolated on the power supply module)
EXTERNAL VIEW
TRANSMISSION DATA DESCRIPTIONS
I/O DATA DESCRIPTIONS
■ 16-BIT DATA
■ 32-BIT DATA
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM