ES-6226 Rev.3
R9WTU-EP
Remote I/O R9 Series
MULTI POWER MONITORING EXTENTION UNIT
(clamp-on current sensor type CLSE use)
Functions & Features
• Extension unit for Multi Power Monitoring Unit (model: R9xWTU) to expand current inputs.
• By using clamp-on current sensors, there is no need of current transformers.
• Up to 16 circuits can be measured with R9xWTU. (Common voltage measurement)
• Current sensors are easy to install in existing systems. Wide input range of 5 to 600 A is availabe.
MODEL: R9WTU-EP8[1]
ORDERING INFORMATION
• Code number: R9WTU-EP8[1]
Specify a code from below for [1].
(e.g. R9WTU-EP8/Q)
• Specify the specification for option code /Q
(e.g. /C01)
NO. OF CHANNELS
8
: 8 circuits
[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
/C03
: Rubber coating
RELATED PRODUCTS
• Multi power monitoring unit for CC-Link (model: R9CWTU)
• Multi power monitoring unit for LonWorks (model: R9LWTU)
• Multi power monitoring unit for Modbus (model: R9MWTU)
• Multi power monitoring unit for Modbus/TCP (model: R9EWTU)
• 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.
GENERAL SPECIFICATIONS
Construction
: Stand-alone
Degree of protection
: IP20
Connection
: M3 screw terminals (torque 0.5 N·m)
Solderless terminal
: Refer to the drawing at the end of the section.
Recommended manufacturer
: Japan Solderless Terminal MFG.Co.Ltd, Nichifu Co.,ltd
Applicable wire size
: 0.25 to 1.65 mm
2
(AWG 22 to 16)
Screw terminal
: Nickel-plated steel
Housing material
: Flame-resistant resin (black)
Isolation
: Must be the same potential as R9xWTU current input
■ Measured variables
Refer to R9xWTU specification sheet.
■Recommended solderless terminal size - M3
INPUT SPECIFICATIONS
Refer to R9xWTU specification sheet.
INSTALLATION
Power consumption
•
AC
: ≤ 1 VA
•
DC
: ≤ 1 W
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
: Surface or DIN rail
Weight
: 300 g (0.66 lb)
PERFORMANCE
Refer to R9xWTU specification sheet.
EXTERNAL VIEW
TERMINAL CONNECTIONS
Use the model CLSE clamp sensor for current inputs.
The figure below shows only one circuit.
A maximum of eight (8) current sensor inputs can be connected (Ch. 9 through Ch. 16).
Grounding is not required for low voltage circuits.
TERMINAL ASSIGNMENTS
EXTERNAL DIMENSIONS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM