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

R9MWTU

Remote I/O R9 Series

MULTI POWER MONITORING UNIT
(Clamp-on current sensor CLSE, Modbus)

Functions & Features
• Multi Power Monitoring Unit for Modbus.
• By using clamp-on current sensors, there is no need of current transformers.
• Up to 8 circuits can be measured. (Common voltage measurement)
• Current sensors are easy to install in existing systems. Wide input range of 5 to 600 A is availabe.
• All measured values, counter values, display mode, setting data are stored in the non-volatile memory when power is off.
• By using SD card, data logging of current and power etc. with calendar is available.

MODEL: R9MWTU–2001–AD4[1]

ORDERING INFORMATION
• Code number:  R9MWTU-2001-AD4[1]
Specify a code from below for [1].
  (e.g. R9MWTU-2001-AD4/Q)
• Specify the specification for option code /Q
  (e.g. /C01/SET)

CONFIGURATION
2: Single-phase/2-wire, 3-phase/3-wire, single-phase/3-wire; 8 circuits

CONNECTION
0: Terminal block

I/O
0: Without

EXTENSION UNIT
1: With connection
  (Extension unit does not conform to EU directive)

AUXILIARY POWER SUPPLY
AD4: universal
100 – 240 V AC (Operational range 85 – 264 V, 50 / 60 Hz) /
110 – 240 V DC  (Operational range 99 – 264 V,
  ripple 10 %p-p max)

[1] OPTIONS
blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
 (No. ESU-6221)

RELATED PRODUCTS
•Discrete I/O Extension Unit (model; R9WTU-ED)
•Multi power Monitoring Extension Unit (model; R9WTU-EP)
• PC configurator software (model: PMCFG)
Software downloadable at M-System’s web site.
A dedicated cable is required to connect the module to the PC. Please refer to the internet software download site or the users manual for the PC configurator for applicable cable types.
• 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.
• SD card
A SD card is required to store data in the unit.
Use the specified model number of memory card.
Available for purchase from M-System. Consult M-System.
  - Hagiwara Solutions NSD6-004GH 
  (NSDA-004GT, NSDA-004GL  ... discontinued)
  - Apacer Technology AP-ISD04GIS4B-3T
  (AP-ISD04GIS4B-T ... discontinued)

GENERAL SPECIFICATIONS
Construction: Stand-alone
Degree of protection: IP20
Connection 
  Auxiliary power or voltage input: M3.5 screw terminals (torque 0.8 N·m) 
  Current input: M3 screw terminals (torque 0.5 N·m)
  Modbus: 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
  M3 screw terminal: 0.25 to 1.65 mm2 (AWG 22 to 16)
  M3.5 screw terminal: 1.04 to 2.63 mm2 (AWG 16 to 14)
Configuration: Single-phase/2-wire, single-phase/3-wire, 3-phase/3-wire
Screw terminal: Nickel-plated steel
Housing material: Flame-resistant resin (black)
Isolation: Sensor core to sensor output or current input or voltage input to Modbus to auxiliary power to FE1
■ Measured variables
Voltage: R – N, S – N, T – N, R – S, S – T, T – R
Current: R, S, T, N
Active / reactive / apparent power: R, S, T, Σ
Power factor: R, S, T, Σ
Frequency
Active energy: Incoming
Reactive energy: Incoming lag
Active / reactive / apparent power intervals (demand) 
Average (demand) current: R, S, T, N  
Harmonic contents
: Σ
Voltage: R - N, S - N, T - N, R - S, S - T, T - R
Current: R, S, T, N
Max. and min. values
Calendar log (inserting SD card): Voltage, Current, power, electric energy, power factor
Operating mode setting: Connection, clamp-on sensor selection
Status indicators: Power, SD Card

MODBUS COMMUNICATION
Communication: Half-duplex, asynchronous, no procedure
Standard: Conforms to TIA/EIA-485-A
Transmission distance: 500 meters max.
Transmission media: Shielded twisted-pair cable
(CPEV-S 0.9 dia.)
Protocol: Modbus - RTU (default) or Modbus - ASCII
Max. number of nodes: 31 (excluding master)
Node address setting: 1 - 99 (with rotary switch) (factory default setting: 00) 
Baud rate setting: With rotary switch 38.4 kbps (default), 19.2 kbps, 9600 bps, 4800 bps
Status indicator LED: Run, RD, SD, ERR
Terminating resistor: Built-in (Selected with the DIP SW; factory setting: disabled)

INPUT SPECIFICATIONS
Frequency: 50 / 60 Hz (45 – 65 Hz)
Voltage Input
  Rated voltage
 
Between lines: 400 V AC
  •Line-neutral (phase voltage): 230 V (single-phase / 2-wire and 3-wire)
Input burden: ≤ 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 (Using CLSE-R5 the unit is configurable only with configurator software.)
Operational range
 Current
: 0 – 120 % of the rating
 Voltage: 10 – 120 % of the rating
 Apparent power: ≤ 120 % of the rating
 Active/reactive power: ±120 % of the rating
 Frequency: 45 – 65 Hz
 Power factor: ±1

INSTALLATION
Auxiliary power supply
AC: < 7 VA
DC: < 1.2 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: 500 g (1.1 lb)

PERFORMANCE
Accuracy (at 10 - 35°C or 50 - 95°F, 45 – 65 Hz)*1
Add the accuracy of the current sensor for overall values.
  Voltage: ±0.5 % of the rating*2
  Current: ±0.5 % of the rating*2
  Power: ±0.5 % of the rating*2
  Power factor: ±1.5 %
  Frequency: ±0.1 % of the rating*2
  Energy: ±1 %
  Harmonic contents: ±2 % of the rating*2
*1. Sensor error margin not included
*2. The described accuracy levels are ensured at the input 1 % or more for phase 2 current with 3-phase/3-wire unbalanced load, for neutral current with 3-phase/4-wire unbalanced load, and neutral current with 1-phase/3-wire.
Data update period:
  Harmonic contents and frequency: ≤ 1 sec.
  Other: ≤ 500 msec.
Calendar clock: (with battery backup)
 Accuracy: Monthly deviation 3 minutes at 25°C
 Back up period: Approx. 2 years at 25°C without power
 With the power on, no battery drain
 Battery: Primary lithium battery (non-removable)
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute
(current input or voltage input to Modbus to auxiliary power or FE1)

STANDARDS & APPROVALS
EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
Low Voltage Directive 
  EN 61010-1,EN 61010-2-201
  Measurement Category II (input)
  Installation Category II (auxiliary power)
  Pollution Degree 2
 Input to Modbus: Reinforced insulation (400 V)
 Input or Modbus to auxiliary power: Reinforced insulation (300 V)
RoHS Directive
  EN 50581

EXTERNAL VIEW

TERMINAL CONNECTIONS
Use the model CLSE clamp sensor for current inputs.
The figure below shows only one circuit. At the maximum of eight (8) current sensor inputs are available (Ch. 1 through Ch. 8).
Grounding is not required for low voltage circuits.

CONNECTION DIAGRAMS

TERMINAL ASSIGNMENTS

EXTERNAL DIMENSIONS unit: mm (inch)

MOUNTING REQUIREMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
Note: In order to improve EMC performance, bond the FE1 terminal to ground.
Caution: FE1 terminal is NOT a protective conductor terminal. 

M-System Co., Ltd.